ImaxRC b8 pro Instruction Manual

Instruction Manual

Than k y ou f or purchas in g ImaxRC B8 PRO charge r. Th is is h i gh -s p e ed

r e ch a rg e / di s ch a rg e e q u ip m e nt ma nufa ctu red wit h h igh tech nol ogy &

prof ess io nal con tro l soft ware. It e nabl es you m ain tain yo ur b att ery wit h op tim al

st atu s with hi gh l evel of sa fety .

Al l speci f ic at ions an d f igu re s are su bj ec t to ch an ge w it ho u t no t ice .
Pri n t ed in Ch in a ©20 09

www.imaxrc.com

Features

Features

Optimized user in terf ace

Whe n cha rgin g or dis cha rgin g, B8 has an "AU TO" fun ctio n th at se ts the fe ed ing cur­re nt au tomat ically. Esp ecially for Lithium ba tterie s, it ca n pre vent
th at ca n lea d to an exp los ion by use r's fa ult. Eve ry progra m in the un it is con trolled
with mut ual links an d comm unic atio n for eve ry pos sible erro r fo r ma ximum saf ety.
Th ese ca n be set at use r' s op tion.

Sp ecia l rech arge plug s por t fo r rece iver, tra nsmitt er and igni ter cha rge r. And for
frequ ent ly use d char ger po rt such as mul ti purpo se croco dile pin etc.

It pro vides most co nven ie
2, 3, 4,5, 6, 7,8 cha rge po rt, and ext ern al re verse con nect or.

nt bala nce charge port fo r Lit hium ba tt erie s, wit h separ ate d

High-p ower and high-p erfo rmance circu it

B8 PRO e mploys t he circu it th at ha s maxim um out pu t po wer o f 15 0W. A s a result it can
cha rge or di schar ge up to 27 cells o f NiCd/ NiMH an d 8 ser ies of Lit hiu m ba tt erie s with
ma ximum cur ren t of 7.0A . Furt hermore th e coo ling syste m is so efficient t hat ca n hold

such a power with out any tr ou

ble of runn ing th e CP U or t he oper ati ng pro gra m.

Individual vo lt age b alan ce for Lithium b atteries in side

B8 PRO has a n ind ividua l-cell-vol tag e ba lan cer in side . This doe s not re quire an y ext ra
ba lan cer wh en cha rgin g Lith ium ba tt erie s (Li lo/ LiP o/LiF e) f or cell vo lta ge balancing .

Balance individual cells on discharge

B8 PRO also can monitor and balance individual cells of the Lithium battery pack during
the discharge process. If the voltage of nay one cell varies abnormally, the process will
be stopped with the error message.

Su it ab le for vario u s types of Lithium b att eries

B8 PRO can accept three types of Lithium batteries-Lilo, LiPo and LiFe. They have
different characteristics by their chemistry. You can select any one of them that you are
going to process before the job. For their specifications, refer "Warnings and safety
notes" section.

Lithium b att ery "Fast" and "Storage" mode

Yo u can char ge Lit hiu m bat te ry for spe cial p urp oses. "Fast" cha rge re duce s th e
cha rgi ng tim e of Lith ium ba tt ery a nd "St ora g" mo de controls t he final volta ge of t he
ba tt ery t o be suit fo r l

on g ti me st orage .

Maximum Safety

Delt a-P eak Se nsit ivit y: The au toma tic ch arg e te rmin at ion pro gra m wor ks on the
pr incip le of th e Del ta-pea k volt age det ect ion .

Au to -cha rge cur ren t limit : Wh en charg ing NiCd or NiMH a t "AUTO" cu rren t mod e,

the ove r-charging

Features

you can set th e up per lim it of cha rge cur ren t to avoid fro m hig h cur rent cha rgin g. Thi s is
ver y usef ul whe n cha rging the low impe dan ce an d sma ll cap acit y NiMH b at tery in

"AUTO" mo de.

Ca

pa city Lim it: The cha rgi ng capa city always calculat ed by multi ple of the charging
cur ren t an d time . If t he cha rgin g cap acit y exce eds t he limit th e pr ocess will be
ter mina te d auto mat ically wh en you set t he maximu m valu e.

Temper ature Limi t: The te mpe rat ure of t he ba tt ery on charging will rise by it s int erna l
che mica l rea cti on. I f you set th e limit of t emp era tur e th e proce ss will be exp ired f orcibly
when

the lim it has r each ed.

Pr ocessing Time Limit: Y ou can also re strain t he maximu m pro cess t ime to preve nt
fro m any p ossib le def ect .

Inp ut Po wer Mon itor: To protect t he car b at ter y usin g as in put p ower f rom being
da mag ed th e volt ag e of it al ways mo nit ore d. If it dro ps below t he lower lim it the pro cess
will be end ed auto mat ically.

Data Sto re/Load

For users con MMnie nce it can sto re maxi mum 10 da ta of differen t ba tt eries. Y ou ca
est ab lish th e da ta con tains prog ram set tin g of t he batt ery to ch arge or d ischa rge
con tinu ally. Th ese da ta can be cal led out at an y tim e you ne ed and the pro cess can be
exe cut ed wit hou t progr am set ti ng.

n

Cyclic ch arging/disch arging

Pe rf orm 1 to 5 cycles of char ge? disch arg e or discha rge ?cha rge cont inu ally fo r ba tt ery
re fre shin g an d balancing .

PC b ased an alysis usin g U SB commu n icatio n

For technical expert, B8 PRO offers PC based program can analysis the characteristic of the
battery by USB port. It shows a graph of voltage, current, capacity and temperature curves.
It also shows the individual voltage of each cell in the Lithium battery pack.

*PC an alysi s softwa re and US B Lin k wir e ar e not incl uded

Mu lti- use wires

Five kinds of wires are provided with the B8 PRO charger.You can charge and discharge
your battery easily with these wires.

01 02

Exterior of the unit

Exterior of the unit

Charging lead connector
(4mm banana female)

LCD screen(16chr.x2lines)

Input power
cable(DC11~18V)

USB port

Individual cell connector
port

Warning and Satety Notes

Warning and Satety Notes

Never leave the charger un supervise d whe n it is con nected to its p owe r supply. If a ny
ma lfu nct ion is ob serve d imm ediat ely t erm ina te th e proce ss and re fe r to the op era tio n

ma nua l.

Ke ep th e un it awa y fro m dust, d amp , rain, heat , direct su nshine an d vib rat ion . Do not
dr op it.

The circuit of t he unit is de sign ed to be powered by a 11 -18 DC on ly.

This un it and th e batt ery to ch arge or d ischa rge sho uld be
no n infla mma ble an d non- cond uct ive surf ace. Neve r pla ce the m on a car se at , carp et or
simila r. Keep al l the infl amm able vola tile ma te rial s we ll awa y fro m op era tin g are a.

Cooling vent o f cha rge r can no t be covered or clo sed in ord er t o kee p go od ventila tio n.

Ma ke sure to complet ely u nde rst and the fea tu re of b att eries to be char ged or
discha rge d. If th e pro gra m is set u p inco
Espe ciall y for Lit hiu m bat te ry, it may cau se fir e or e xplo de if charg ed inco rrectl y or
ove rcha rge d.

rrect ly, th e ba tt ery may b e seve rely da mag ed.

set u p on a hea t-r esist ant,

Vo lta ge level: 1. 2V /cell
Allowab le fa st charge current : 1C~2C depend s on the
pe rfo rman ce of cellDischa rge volt age cut off level:

0. 85V /ce ll(NiCd ), 1.0V /cell(NiMH)

Volt age leve l: 3.6 V/ce ll
Max charge volta ge: 4. 1V/cell
Allowab le fa st char ge current : 1C or less
Min . disch arge volt age cut off level: 2. 5V/ce ll or higher

Volt age leve l: 3.7 V/ce ll

Temperature
sensor port

This diagram shows the correct way to connect your battery to the B8 PRO charger while
charging in the balance charge program mode only.

Dec/Inc

To select sub program
/To alter the value

Dec/Inc

To select sub program
/To alter the value

Start/Enter

To resume or start the
operation

WARNING:

Fail ure to connect will dama ge thi s cha rger. The right approach is as follows:

NiCd/NiMH

Li-ion

LiPo

Max charge volta ge: 4. 2V/cell
Allowab le fa st char ge current

: 1C or less

Disch arge volta ge cut off leve l: 3. 0V/ce ll or high er

LiFe

Vo lta ge level: 3. 3V /cell
Max charge volta ge: 3. 6V /cell
Allowab le fa st charge current : 4C or less(e.g . A1 23M1)
Disch arge volta ge cut off leve l: 2. 0V/ cell or high er

*The main battery leads must be connected along with the balance lead connector as shown before
charging your battery .

WARNI NG:

If us ing c rocodi le cl ips as shown i n abov e diagra m, mak e sure the y are una ble to
touch Toget her!

03 04

Pb

Vo lta ge level: 2. 0V /cell
Max charge volta

ge : 2. 46V /cell
Allowab le fa st charge current : 0. 4C or less
Disch arge volta ge cut off leve l: 1. 75V /cell or hig her

Warning and Satety Notes

Warning and Satety Notes

To avo id sho rt-cir cuit s bet ween the cha rge le ad, a lways co nnect t he charg e cable to
the un it first an d only t hen to the bat te r to be char ged or dischar ged . Rever se th e
seq uence wh en disco nne cting .

Very Importan t!

Do no t con nec t mo re than on e ba tte ry pa ck to the charge le a d at any one time .

The charg er is not su it able fo r t h e fo llowing b attery typ es

Ba tt ery pa ck, which con sists of di fferent t ypes of cell (i nclu ding diff ere nt manu factures)

Ba tt ery which is alr ead y fu lly cha rge d or just slight ly discha rge d

Non- rech arg eab le bat te ries (E xplosion hazard) .

rie s th at req uir e a diffe ren t char ge te chniqu e fr om NiCd, NiMH, Lilo, LiP o, LiFe or

Ba tt e
Pb .

Faulty or da mag ed ba tt ery

Ba tt ery fit te d wit h an integ ral ch arg e circu it or a pr otect ion cir cuit .

Ba tt eri es installed in a device, or which are elect rica lly lin ked to oth er co mpo nen ts.

Ba tt eri es th at ar e not exp ressly sta te d by t he man uf actur e to be sui table for t he
cur ren ts t he charger de livers during the char ge pro

Please bear in min d of ch ecking the follo wing point before
ch arge op eration:

Did you sele ct th e ap pro priat e pr ogram , which are suit abl e fo r th e typ e of bat te ry?

Did you set up ad equ at e current f or ch arg ing or discha rgin g?

Lithium ba tt ery pack ca n be com posed wit h pa rallel an d ser ies cir cuit s mixed. Y ou have
to check th e com position of th e ba tt ery p ack car efully be fo re char ging

Ar e all con nections fi rm and saf e, or is t here an inte rmit te nt con ta ct at any po int in th e
circuit?

Ch arging

A spe cific q uan tit y of el ectrica l en erg y is fe d int o the ba tt ery d uring cha rge process.
The char ge qu an tit y is cal cula ted by mult iplyi ng char ge cu
ma ximum pe rmissible cha rge curre nt varies acco rding to the bat te ry type s or it s
pe rforma nce, a nd can be fo und in the in for mat ion pr ovid ed by the ba tt ery m anu fa cture.
It is on ly allowed to char ge batt eries at ra te s highe r th en th e sta ndard charge curren t if
the y are exp ressl y stated to be capab le of q uick-cha rge .

Conn ect the ba tt ery t o cha rge t o outp ut ter mina l of the charg

05 06

cess.

rren t by ch arg e ti me. The

er usi ng suit able cha rge

lead . They are re d, po siti ve (+) an d bla ck, neg at ive (-). Since the char ger cann ot de tect
the di ffer ence bet wee n th e interna l resi stance s of th e ba tt ery p ack, cab le resista nce
an d con necto r transf er resist ance , the first req uiremen t if the ch arger to work pro perly
is t hat t he cha rge lea d sho uld be of a deq uate co ndu cto r cross-se ctio n. An d also high­qu ality co nnect ors (norma ll

Refer to t he inf orm ati on pro vide d by t he batt ery manu fa cture rega rdin g cha
me thod s, an d ver ify t he recomme nde d cha rge cur ren t an d cha rge ti me. Espe ciall y for
Lithium ba tt erie s, you have to fo llow the cha rge in struct ion pr ovid ed by the
ma nuf act ure r strict ly.

Do no t at te mpt t o disa ssemble t he batt ery pa ck arb itr arily.

Yo u ha ve to pay a tt ent ion to ve
pa ck. It ma y be comp osed of pa rallel an d seri es con necti on mixed. I n pa rallel lin k the
cap acit y of t he bat te ry pa ck is mul tip lied by th e nu mbe r of cel ls but th e volt ag e rema ins
the sam e. Tha t kind of volt age imba lance causes a fire or exp losio n du ring char ge

y go ld-con ta ct type ) must be fit te d to bot h en ds.

rif y th e cap acit y and the volt age of th e Lit hium ba tt ery

proce ss. We recomme nd you compo se the Lith ium bat ter pa ck in serie s on ly.

Discharg e

The typica l pur pose of disch arg e is t o dete rmine the re sidu al cap acit y of t he bat te ry, or
to lowe r th e voltag e of ba tt ery t o a defin ed level. W hen you disch arg e th e batte ry you
also have to pa y att en tio n on the pr ocess same as cha rging . To avo id the ba tt ery
be comi ng dee p-ch arg ed, set the fina l disch arg e voltag e correctly. Li thium b
sho uld no t be dee p-ch arg ed to lo wer t han th e minimu m volt ag e, as t his le
loss of ca paci ty or a to tal failure . Gener ally, yo u do no t ne ed to discha rge Li thi um
ba tt ery vo lun tarily.

So me rech arg eable bat te ries are said to have a mem ory e ffect. If t hey a re par tly u sed
an d recha rge d be fore th e whole char ge is drawn out , they rememb er th is an d ne xt
time wil l onl y use that p art of t heir ca paci ty. This is a mem ory effect NiCd an d NiMH
ba tt eries a re said to suffer fr
cha rge t hen use unt il empty, do no t recha rge be fo re stora ge- allo w th em to self ­discha rge during sto rag e. NiMH ba tt erie s have less memor y eff ect t han NiC d.

The Lit hiu m bat te ry pr efe rs a par tia l rat he r th an a full di schar ge. Fr equ ent f ull
discha rge s should be avoided if po ssibl e. In ste ad, ch arge th e batt ery more of te n or use
a large r ba tt ery.

d- new NiCd bat te ry pa ck is part iall y use fu l wit h its cap acit y unti l it has be en

The bra n
sub ject ed to 10 or mo re charg e cyc les in an y case. Th e cyclic p roce ss of cha rge an d
discha rge will le ad to op tim ize the capa city of bat te ry pa ck.

om me mory e ffe ct . The y pre fer comp let e cycles; fu lly

Those warning and safely notes are particularly important. Please follow the
instructions for a maximum safely; otherwise the charger and the battery can be
damaged violently. And also it can cause a fire to injure a human body or to lose the
property.

‘ ’

Warning and Satety Notes

rging

at te ries

ad s to a rap id

“ ”

Program flow chat

Program flow chat

Program flow chat

PROGRAM SELECT

Lithium battery

Batt typ e stop

PROGRAM SELECT

NiMH battery

Batt typ e stop

PROGRAM SELECT

NiCD battery

Batt typ e stop

PROGRAM SELECT

Pb battery

Batt typ e stop

PROGRAM SELECT

SAVE DATA

Batt typ e stop

PROGRAM SELECT

PROGRAM SELECT

LOAD DATA

LOAD DATE

Batt typ e stop

Start
En ter

Start
En ter

Start
En ter

Start
En ter

Start
En ter

LIXX CHARGE LIXX CHARGE

NiMH CHARGE

'Aut'

NiCD CHARGE

'Aut'

Pb CHARGE

INC
DE C

INC
DE C

INC
DE C

INC
DE C

NiMH CHARGE

'Man'

NiCD CHARGE

'Man'

Pb CHARGE

SAVE DATA

LOAD DATA

INC

DE C

INC

DE C

INC

DE C

LIXX BALANCE

NiMH DISCHARGE

NiCD DISCHARGE

Capacity Cut-off

INC DE C

Safety Time

INC

DE C

INC

DE C

INC

DE C

INC

DE C

INC

DE C

LIXX FAST CHG

NiMH CYCLE

NiCD CYCLE

Key Beep Buzzer

NiMH/NiCd/Pb

Trickle Charge

INC

DE C

INC

DE C

INC

DE C

LIXX STORAGE

INC DE C

LIXX DISCHARGE

Back-light

brightness

INC DE C

Input Power

Low Cut-off

CHG>DCHG
Waste Time

INC DE C

USER'S SET

PROGRAM SELECT

07 08

Start
En ter

LiXX V.Type

LiPo/LiIo/LiFe

CHK Time

NiMH D.Peak

Sensitivity

INC

DE C

NiCD D.Peak

Sensitivity

INC

DE C

Temp Cut-off

Initial parameter set up(Users set up)

Initial parameter set up(Users set up)

B8 PRO will be operated with the default value of the essential user settings when it is
connected to a 12V battery for the first time. The screen displays the following
information in sequence and the user can change the value of parameter on each
screen.

When you are willing to alter the parameter value in the program, press Start/Enter key
to make it blink then change the value with Inc> or <Dec key. The value will be stored
by pressing Start/Enter key once.

USER SET

PROGRAM

INC

LiFe V.Type

9.9V

DEC INC

INCDEC

LiPo/LiIo/LiFe
CHK Time 10min

DEC INC

This in forms yo u of it s desig nat ion .

The scree n displa ys th e no mina l volt ag e of Li thium
ba tt ery. Th ere ar e th ree kin ds of Lit hium ba tt ery:
LiFe(3.3V ), Lilo(3. 6V ) or L iPo (3. 7V ). This is ver y
imp ort an t so you have to che ck th e batte ry car efully
an d set it up corr ectly. If it is diffe ren t fro m corr ect
val ue the bat te ry exp lod e du ring char ge pro cess.

B8 PRO re cognize th e cell cou nt of Li thium ba tt ery
au to ma

tically a t the be gin ning of cha rge or
discha rge process to avoid fro m err one ous set ting
by u ser. B ut de epl y discharge d ba tt ery ca n be
pe rcei ved inco rrectly. To pre ven t th e erro r, you can
set t he time te rm to veri fy t he cell co unt by t he
pr ocessor. Nor mall y, 10 min ut es ar e enou gh to
pe rcei ve th e cell cou nt cor rect ly. For the ba tt ery o f
larg er capa city, you may ext en d th e time te rm. But if

he t ime te rm to lo ng for t he batt ery of

you set t
sma ller cap acit y, th e cha rge or discha rge pr ocess
can be finished wit hin t he tim e te rm wit h the
er ron eou s cell co unt. Th is may cau se th e fat al
re sult . If th e pr o cessor re cognizes t he cell cou nt
incor rect ly at t he begin nin g of char ge or disch arg e
pr ocess, you may ext en d th e time. Oth erwise, yo u
ha d be tt er u se wit h th e de fault va lue .

INCDEC

NiMH Seneitivity
D.Peak Default

DEC INC

INCDEC

NiCD Seneitivity
D.Peak Default

DEC INC

INCDEC

Temp. Cut-off
ON 80C

DEC INC

DEC INC

Initial parameter set up(Users set up)

This shows th e tr igg er volt a

ter mina tio n of NiMH a nd NiCd ba tt ery. Th e eff ect ive
val ue ran ges f rom 5 to 20 mV per cel l. If th e trig ger

vol tage is set hig her, the re is a da nge r of
ove rcha rgi ng the bat te ry; if it is set lower, th ere is a
po ssibilit y of pr ema ture te rmin at ion. Ple ase refer
the tech nica l spe cifica tio n of t he batt ery. (NiC d
de fa ult : 12 mV, Ni MH de fault: 7 mV)

An opt ion al f eat ure usin g te mpe rat ure
con ta ctin g th e sur face of ba tt ery, t he te mpe rat ure
cut -off can be on or off . If it is o n, set t he maximu m
tem perat ure at wh ich the cha rge r sho uld allow
ba tt ery t o re ach durin g cha rge . Once a bat te ry
re ache s th is te mpe rat ure du ring charge, t he
pr ocess will be termin at ed to prot ect t he bat te ry.

The bat te ry is on the cyclic pr ocess of char ge and
discha rge can of ten beco me warm af te r cha rge or

cha rge period. Th e pro gra m can inser t a time

dis
de lay t o occu r af te r ea ch cha rge an d disch arg e
pr ocess to al low t he batte ry ad equa te time to cool
do wn bef ore being sub ject ed to the next p roce ss.
The valu e ran ges fr om 1 to 6 0 minut es.

Yo u can set th e tr ickle charg e mod e on or off . If it is
on , the ch arger will au to mat ically supp ly th e tr ickle
cha rge curre nt to achi eve th e fu ll cha rge wit ho ut
ove rhe at ing
ter mina te d.

Wh en you sta rt a char ge pro cess, the integ ral saf et y
time r au tomatically st art s runn ing at t he same t ime.
This is p rogra mmed t o pre ven t ove rcha rge the
ba tt ery if it pro ves t o be fa ult y, or if t he te rmin at ion
circuit can not det ect t he ba tt ery f ull. The val ue for
the saf e ty t imer shou ld be gen ero us en ough t o
allow a fu ll cha rge of th e ba tt ery.

th e ba tt ery a ft er f ast cha rge ha s been

ge f or aut oma tic cha rge

pr obe

09 10

Initial parameter set up(Users set up)

Initial parameter set up(Users set up)

Initial parameter set up(Users set up)

INCDEC

Waste Time
CHG/DCHG 5min

DEC INCDEC INC

INCDEC

NiMH/NiCD/Pb
Trickle 100mA

DEC INC

INCDEC

Safety Time
ON 120min

DEC INCDEC INC

This pr ogr am sets th e ma ximum cha rge capa city
tha t will be supp lied t o th e ba tt ery d urin g cha rge .
If th e de lta -pe ak voltag e is no t de te cted nor the
saf et y tim er e xpire d by a ny re ason , this fea tu re
will au to mat ically st op th e pro cess a t th e
sel ected cap acit y value .

The bee p sou nds at every ti me pr essin g th e
bu tt ons to confi rm your action. Th e beep or
me lody sou nde d at va riou s tim es du ring
op era tio n t
au dib le sou nds can be t urn ed on or o ff.

o ale rt diff ere nt mode chan ges. Th ese

INCDEC

Capacity Cut-off
ON 500mAh

DEC INCDEC INC

INCDEC

Key Beep ON
Buzzer ON

DEC INC

INCDEC

Input Power Low
Cut-off 10.0V

DEC INC

INCDEC

Back-light
100%

This pr ogr am mon ito rs th e volta ge of in put
ba tt ery. I f the volt age drops b elo w th e valu e you
set t he op eration forcib ly te rmin at ed to pr ote ct
the in put bat te ry.

Yo u can adjust t he brigh tn ess of LCD
the charger.

sc reen at

DEC INC

11 12

Lithium battery(LiPo/LiFe/LiIo) program

Lithium battery(LiPo/LiFe/LiIo) program

These pr ogr ams a re on ly suita ble for cha rging an d discha rging Li thium ba tt eri es wit h
a no mina l volt ag e of 3. 3V , 3. 6V an d 3. 7V pe r cell . The se ba tt eries n eed t o adop t
differen t charge techn iqu e th at is t erme d a consta nt vol tage (CV ) an d con sta nt
cur ren t (CC) met ho d. The cha rge curre nt var ies accor ding to th e ba tt ery ca pacit y an d

pe rforma nce.

Charging Lithium battery

LiPo CHARGE

2.0A 11.1V(3S)

D is p la y

DEC I NCDEC INC

Charging Lithium battery

The lef t sid e of the first lin e sho ws th e type of
ba tt ery yo u select a t th e use rs set ting . The valu e
on t he lef t side of se cond lin e set s a cha rge curre nt
an d th e val ue on th e right sid e of se cond lin e set s
the vol tage of t he batte ry pa ck.

The final volt ag e of charge pr ocess is al so very imp ort ant; it sh oul d

be pr ecise ly
ma tched wit h the char ade volt age of t he ba tt ery. Th ey are 4.2V f or LiPo, 4. 1V fo r Lilo,
an d 3. 6V fo r LiFe. Th e cha rge cur ren t an d no mina l volt ag e as f or ce ll cou nt set on the
cha rge progr am mu st always be cor rect f or t he batt ery to be charged .

Wh en you are willing to alt er t he para met er va lue in th e pro gra m, press St art /Ent er
key to make it blink th en cha nge t he valu e wit h In c> or <De

c key. Th e value will be

st ored by pressin g sta rt/e nt er ke y once .

Batt type

stop

Start
Enter

`>3seconds`

R:3SER S:3SER
CONFIRM(ENTER)

Start
Enter

Li3s 2.0A 12.59V
CHG 022:43 00682

number
of
cells

charging
time

charge
current

battery
voltage

charged
capacity

Af te r set ti ng the curr ent and vol tage pr ess
Sta rt/E nter key f or m ore th an 3 secon ds t o sta rt
the pro cess. (Ch arg e current : 0. 1~0.7A ,
Vo ltag e: 1~8 seri es)

This show

s the nu mbe r of cells yo u set up and
the pro cessor det ect s. 'R' show s the num ber of
cel ls fo und by the cha rge r an d 'S' is t he number
of ce lls selected by yo u at t he pre viou s scree n. If
bo th nu mbe rs ar e ide nt ical yo u can star t cha rgin g
by pressi ng Start/E nte r but to n. If n ot pre ss

Ba tt.ty pe/ Stop bu tt on to go back t o pr evious

scre en. The n caref ull y che ck th e nu mbe r of cells
of t he ba tt ery p ack to char ge

ag ain .

The scree n sho ws th e prese nt sit uat ion during
cha rge process. To stop char gin g pre ss

Ba tt.ty pe/ Stop key once.

13 14

'Fast' charging Lithium battery

'Fast' charging Lithium battery

The char gin g curr ent is g et tin g smalle r as t he pro cess goe s to th e ne ar end ter m of
Lithium ba tt ery ch arg ing. To fini sh cha rgin g pr ocess e arlier, this prog ram eli mina te
cer tain te rm of CV pro cess. The char ging curren t will go es t o 1/ 5 fr om the in itial value
to end the pro cess wh ile the nor mal ch arg ing go es t o 1/ 10 dur ing CV te rm. The
cha rgi ng capaci ty ma y be a bit smaller t han no rma l charg ing but t
be reduced.

he pr ocess ti me will

'Storage' control Lithium battery

'Storage' control Lithium battery

This is f or ch arg ing or discha rgin g Lithium ba tt ery not t o be use d fo r th e time be ing .
The pro gra m will determin e to ch arge or d ischa rge th e ba tt ery t o the cer tain volt ag e
de pend ing on the vol tag e of t he batte ry at it s initial st age . They a re di ffer ent f rom
the t ype of the ba tt er, 3.75 V fo r Lilo, 3. 85V f or LiP o and 3.3V f or LiFe pe r cell . If t he
vol tage of batt ery at it s initia
will st art t o discha rge .

l st age is o ver t he volt ag e leve l to st orage . The pro gra m

LiPo FAST CHG

2.0A 11.1V(3S)

DEC INCDEC INC

Batt type

stop

Start

`>3seconds`

Enter

Li3s 2.0A 12.59V
FAS 022:43 00682

number
of
cells

elapsed
time

charge
current

suppl ied
capacity

Current
voltage of
battery

Yo u can set up th e cha rging cur ren t an d th e
vol tage of t he batt ery pa ck bei ng charged . As

you p ress S tart /E nter b ut ton the volt age
con firma tio n will be di spla yed. A nd th en, if yo u
con firm the vo lta ge and curren t, pres s
St art/ Ent er bu tt on ag ain to start charging .

This shows th e prese nt stat e of 'FA ST'
cha rgi ng. To stop cha rgi ng arb itr ary, pr ess
Batt.ty pe/St op key o nce.

LiPo STORAGE

2.0A 11.1V(3S)

DEC INCDEC INC

Batt type

stop

Start
Enter

`>3seconds`

Li3s 2.0A 12.59V
STO 022:43 00682

number
of
cells

elapsed
time

charge
or
discharge

current

suppl ied
capacity

Current
voltage of
battery

Yo u can set up th e cur rent an d th e volt a

ge of
the bat te ry pa ck to be cha rge d. The curre nt will
be u sed fo r charge or d ischa rge th e ba tt ery t o
re ach th e 'st ora ge' leve l of volt age .

The scree n sho ws th e prese nt sit uat ion during
cha rge process. To stop char gin g pre ss

Ba tt.ty pe/ Stop key once.

15 16

Discharging Lithium battery

Dishcharging Lithium battery

Voltage balancing and monitoring during the discharge

Voltage balancing and monitoring
during the discharge

LiPo DISCHARGE

2.0A 11.1V(3S)

DEC INCDEC INC

Batt type

stop

Start

`>3seconds`

Enter

Li3s 2.0A 12.59V
DSC 022:43 00682

battery
voltage

discharged
capacity

elapsed
time

discharge
current

The valu e of discha rge curre nt on t he lef t sid e
of scr een ma y not e xceed 1C f or a maximu m
saf et y an d th e fin al vo lta ge on th e rig ht sho uld
no t be unde r th e volta ge level t ha t is
re commen ded by the ba tt ery m anu fa cture to
avo id dee p di schar gin g.

To sta rt to di schar ge pre ss Start/Enter key f or
mo re tha n 3 second s.
(Di schar ge curr ent :0 .1 ~5. 0A)

This shows th e prese nt stat e of d ischa rge . To
st op disch arg in
on ce.

g pre ss Bat t.type/ St op key

The pro cessor mo nit ors t he volta ge of in divid ual cel ls durin g 'st orage -mo de' an d

'di schar ge' of Lit hiu m bat te ry pa ck. It tr ies t o no rmalize the vol tage to be equ al. Fo r
this fe at ure , th e individua l plu g of t he bat te ry pa ck should be conne cte d to the
individ ual po rt of th e cha rge r.

If th e volt ag e of an one or mo re cells va ries ab nor mall y du ring the pro cedu re, B 8 PRO

es t he proce ss fo rcibly wit h the error messag es. If th is happ ens, th e ba tt ery

ter mina t
pa ck contains t he bad cell, or t he ba d conne ctio n of t he cab le or plug. You can easi ly
kno w whi ch on e cell is ba d by p ressing Inc> bu tt on at time of sh owin g th e er ror
me ssage s.

BATTERY VOL ERR

CELL LOW VOL

INC

C1:3.50 C2:3.52V
C3:3.48 C4:1.82V

INC

The pro cessor f oun d th at th e vol tage of one of t he
cel l in th e Lit hiu m batt ery pa ck is to o low .

In this case, t he 4t h cell is bad . If th ere ha ppe n the
con nection-br eak o f the cab le or plug, t he volt ag e

val ue may sh ow zero .

C5:3.46 C6:3.50V
C7:3.42 C8:3.48V

17 18

NiCd/NiMH battery program

NiCd/NiMH battery program

These pr ogr ams a re for cha rging or discha rgi ng NiMH( Nickel-M eta l-Hyd rid e) or
NiCd( Nickel -Cad mium) b at ter y common ly use d fo r R/C mo del ap plicat ion s. To alt er
the va lue at the di splay, press S tart/ Ente r key t o make it blin k th en chan ge th e value
usi ng In

c> and <Dec ke y. The valu e will be st ore d by pr essin g St art/ Ent er key o nce.

To sta rt th e proce ss, pre ss Sta rt/Ente r bu tt on fo r more th an 3 seco nds.

Discharging NiCd/NiMH battery

NiMH DISCHARGE

3.0A 11.5A

Start
Enter

DEC INC

`>3seconds`

DEC INC

Batt type

stop

Se t disch arge curre nt on the left and fin al volt age

on the right . The discharge curre nt range s fr om

0. 1 to 5. 0A and the fin al volt age rang es from 0.1
to 30 .0V . to start th e pro cess, press
key f or more th an 3 secon ds.

Discharging NiCd/NiMH battery

St ar t/ Ent er

Charging NiCd/NiMH battery

NiMH CHARGE Aut
CUR LIMIT 5.0A

DEC INC

Batt type

stop

Start
Enter

`>3seconds`

NiMH 2.0A 7.24V
CHG 022:45 00890

battery
type

elapsed
time

charge
current

battery
voltage

discharged
capacity

This pr ogr am simpl y char ges t he ba tt ery u sing
the cur ren t you set. I n 'Aut' mode ,Y ou nee d to

set t he up per limit of ch arge curr ent t o avo id
fro m hig her fee din g curr ent t hat may d ama ge
the bat te ry. Be cause some ba tt eries o f low

imp edan ce an d small ca paci ty c

high er ch arg e current by th e pr ocessor at

au to mat ic cha rge mo de. B ut in 'Man' m ode , it

will charge the ba tt ery wit h th e cha rge cur ren t

you set at the di splay. Ea ch mode can be

swit che d by p ressin g Inc> an d <De c but to n

simult an eou sly wh en th e curr ent fi eld is
blinkin g.

The scree n displa ys th e curre nt sta te of
cha rgi ng. To st op th e pro cess, press
Ba tt.t ype /Stop key on ce. The aud ible soun d
indicat ed you t he end of proce ss.

an le ad to th e

NiMH 2.0A 7.24V
DSC 022:45 00890

battery
type

elapsed
time

charge
current

battery
voltage

discharged
capacity

The screen disp lays the curren t sta te of discharge .
Yo u can alt er the disch arge current by pressing

St ar t/ Ent er key du ring th e pro cess. Once you

cha nge th e current value, sto

re it by pre ssing

St ar t/ Ent er butt on aga in. To stop disch arg ing

Ba tt.t ype /Stop key on ce. The aud ible

press
sou nd indicat es you at the end of process.

19 20

Charge-to-discharge & discharge-to-charge cycle NiCd/NiMH battery

Charge-to-discharge & discharge­to-charge cycle NiCd/NiMH battery

NiMH CYCLE
DHCG>CHG 3

Start
Enter

DEC INC

`>3seconds`

DEC INC

Batt type

stop

Se t the sequ ence on th e lef t and the num ber of
cycle on t he righ t. Y ou can use th is fu nct ion for
ba lan cing , refreshing an d br eak- in the ba tt ery.
To avo id risin g te mpe rat ure of t he ba tt ery, t her e
will b e a brief coo l-off perio d th at alre ady fi xed at

'Use r set tin g' af te r each char ge and disch arg e
pr ocess. The cyclin g nu mbe r rang es from 1 to 5.

Pb(Lead-sulphuric acid) battery program

Pb(Lead-sulphuric acid) battery program

This is p rogra mmed f or ch arg ing Pb (lea d-a cid) ba tt ery wit h nomin al vo lta ge from
2 to 36 V. Pb bat te ries are to tal ly diff ere nt from NiCd or Ni MH ba tt erie s. They can
on ly de liver re lat ively lower curre nt com par e to the ir cap acit y, and similar restrict ion s
de fin ite ly apply to char ge. S o th e op timal cha rge cur ren t will be 1/ 10 of t he capaci ty.
Pb b atteries must no t be cha rge d rapidly. Alw ays foll ow t he i
the ma nufa ctu re of ba tt ery.

Wh en you are willing to alt er t he para met er va lue in th e pro gra m, press S ta rt/ En ter
key to make it blink th en cha nge t he valu e wit h In c> or <Dec key. Th e value will be
st ored by pressin g St art /E nt er ke y once .

nst ruction is sup plie d by

NiMH 2.0A 7.24V
D>C 022:45 00890

battery
type

elapsed
time

discharge
or charge

current

battery
voltage

discharge
or charge

capacity

DCHG 1 1314mAh
CHG 1 1430mAh

To sto p th e pr ocess, p ress B att.type/ St op key

on ce.

Yo u can chan ge th e disch arg e or cha rge curre nt
by pressi ng Sta rt/E nte r key on ce durin g th e
pr ocess. The au dib le soun d indicat es yo u the en d
of p roce ss.

At t he en d of the pr ocess, you can see char ged or
discha rge d elect ric ca paci tie s of th e ba tt ery a t
ea ch cyclic proce ss. By pr essin g Inc> or <De c
bu tt on, th e screen sho ws the re sult of e ach cycle
in or der .

Charging Pb battery

Pb CHARGE

4.0A 12.0V(6P)

Start
Enter

DEC INC

`>3seconds`

DEC INC

Batt type

stop

Pb-6 4.0A 12.59V
CHG 022:43 00682

Se t up th e charg e curr ent o n th e lef t and the
no minal volta ge of the ba tt ery on th e rig ht . The
cha rge curre nt ra nge s fro m 0. 1 to 7.0 A and t

he
vol tage sho uld be ma tch ed with the bat te ry
be ing char ged .

St ar t th e cha rge pr ocess by p ressin g St art/E nt er
key fo r more th an 3 seco nds.

The scree n displa ys th e sta te of ch arg ing proce ss.
To sto p cha rging forcib ly, pre ss Bat t.type /S top
key on ce. The aud ible soun d ind icat es yo u at the
en d of p roce ss.

elapsed
time

21 22

charge
current

battery
voltage

charge
capacity

Discharging Pb Battery

Discharging Pb Battery

Discharging Pb Battery

Pb DISCHARGE

4.0A 12.0V(6P)

Start
Enter

DEC INC

`>3seconds`

DEC INC

Batt type

Stop

Pb-6 4.0A 12.59V
DSC 022:43 00682

battery
type

elapsed
time

discharge
current

battery
voltage

discharge
capacity

Set discharge current on the left and final voltage
on the right. The discharge current ranges from 0.1
to 5.0A. To start the process, press Start/Enter key
for more than 3 seconds.

The screen displays the current state of discharge.
You can alter the discharge current by pressing
Start/Enter key during the process. Once you
change the current value, store it by pressing
Start/Enter button again.

To stop discharging press Batt.type/Stop key once.
The audible sound indicates you at the end of
process.

PROGRAM SELECT
SAVE DATA

13-1415-1617-1819-2021-2223-2425-2627-2829-3031-3233-3435-36

Start
Enter

SAVE [01] NiMH

14.4V 3000mAh

voltage date

number

Batt type

Stop

Start
Enter

`>3seconds`

NiMH CHARGE AT*
CUR LIMIT 5.0A

DEC INC DEC INC

Type of
batterycapacity

Save Data Program

The par ame ter value se tt ing up in th is screen do es
no t affe ct charge or d ischa rge proce ss. They on ly
re pre sent t he spe cifica tio n of t he batt ery. The
followin g screen s will a utom ati cally b e displaye d

exa ctly matche d wit h th e ba tt ery t ype you set u p.
The exam ple sho ws th e ba tt ery p ack of NiMH, 1 2
cel ls and 300 0mA h of ca pacity.

Set up the charge current for manual charge mode,
or the current limit for automatic charge mode.
Each mode can be switched by pressing Inc> and
<Dec button at the same time when the current
field is blinking.

NiMH DISCHARGET*
40A 11.0v

Se tt ing up disch

ar ge curr ent and fina l volt ag e

Save Data Program

B8 PRO has a data storage and load program for your convenience. This feature can
store up to 10 battery data by number that represent the individual specification of
batteries you are using. They can be called back for the process of charging or
discharging without setting up the program again. To set up the parameter value in the
program, press Start/Enter key to make it blink then change the value with Inc> or <Dec
key.

DEC INC

NiMH CYCLE *
DCHG>CHG 3

Save...

23 24

DEC INCDEC I NC

DEC INCDEC I NC

Start

`>3seconds`

Enter

Se tt ing up t he seque nce of cha rge and discha rge ,
an d th e cycling nu mbe r

Sa ving t he dat a

Load Data Program

Load Data Program

This program calls back the data that was stored at 'Save Data' program.

To load the data, press Start/Enter key once to blink the data number field and select
the number using Inc> or <Dec key then press Start/Enter key for more than 3
seconds.

PROGRAM SELECT

LOAD DATA

Start
Enter

LOAD [01] NiMH

14.4V 3000mAh

Start

`>3seconds`

Enter

LOAD...

Se lect t he data num ber to be called ba ck.

The dat a mat ched with the num ber will be displayed

at t his t ime.

Lo adin g th e dat a.

End Voltage

12.6V(3S)

DEC

Capacity Cut-Off
ON 5000mAh

DEC

Safety Time
ON 200min

D is p la y

DEC

Temp Cut-Off
OFF 80C

DEC

Ext. Temp 26Cf
Int. Temp 30C

DEC

IN Power Voltage

12.56V

Various Information during the process

The final volt ag e will be re ache d at t he end of
pr ocess.

The int ern al t emp era tur e of t he char ger and the
tem perat ure of batte ry be ing cha rge d.

(Th e ext ern al t emp era tu re on ly will be di splayed
when using the therma l pro be. )

The pre sent vo lta ge of inpu t DC p ower.

Various Information during the process

You can inquire various information on LCD display during charging or discharging
process. When you press <Dec button the charger shows the establishment of user
settings. And also you can monitor the voltage of individual cell by pressing Inc>
button when the individual connection cable is linked to the Lithium battery being
processed.

25 26

C1:4.12 C2:4.09V
C3:4.09 C4:4.10V

INC

C1:4.18 C2:4.15V
C3:4.08 C4:4.12V

Usin g th e individua l con nect ion cable to th e
ba tt ery, yo u can che ck th e ind ividua l volt ag es of
ea ch cell in the ba tt ery p ack. Wh en conne ct the
cab le to th e po rt on th e rig ht side of th e cha rge r
the pr ogr am sho ws th em fo r maxi mum 8 cel ls in

seq uence . To ut ilize this fe at ure , the ba tt ery p ack
mu st ha ve ou tput co nne cto r th at lin ked to ea ch
cel ls.

Warning and Error messages

Warning and Error messages

B8 PRO incorporates a various functions of protective and monitoring the system to
verify functions and the state of its electronics. In any case of occurring error, the screen
displays the cause of error that is self explanatory with audible sound.

BATTERY CHECK
LOW VOLTAGE

Warning and Error messages

The processor detects the voltage is lower
than you set at Lithium program. Please check
the cell count of the battery pack.

REVERSE POLARITY

CONNECTION BREAK

SHOT ERR

INPUT VAL ERR

VOL SELECT ERR

BREAK DOWN

T he o ut put is c on nec t ed t o a b attery wit h
inc orrec t polarit y

This will be displayed in case of detecting an
interruption of the connection between battery
and output or voluntarily disconnecting the
charge lead during the operation of charge or
discharge on output.

A sho rt-circuit at ou tp ut. P lea se che ck the
cha rgi ng leads.

The voltage of input power drops below the limit.

The v olt ag e of Lit hium bat te ry pa ck wa s
s elec ted in co rre ct ly . Ve rif y the v olt ag e of
ba tt ery b ac k ca ref ully .

There happens the malfunction at the charger
circuit by any reason.

BATTERY CHECK
HIGH VOLTAGE

BATTERY VOLTAGE
CELL LOW VOL

BATTERY VOLTAGE
CELL HIGH VOL

BATTERY VOLTAGE
CELL CONNECT

TEMP OVER ERR

CONTROL FAILURE

The processor detects the voltage is higher
than you set at Lithium program. Please check
the cell count of the battery pack.

The volt age of one of th e cell in th e Lithium

ba tt ery p ack is t oo low. Ple ase che ck th e

vol tage of t he cell on e by one .

The volt age of one of th e cell in th e Lithium

ba tt ery p ack is t oo hig h. Plea se che ck th e

vol tage of t he cell on e by one .

There is bad conne ctio n at t he ind ividu al

con nector . Plea se che ck th e conne cto r and

cab les ca ref ully.

The internal temp era ture of the unit goes to o

high . Cool do w

The processor can not continue to control the
feeding current by any reason. The unit needs
to be repaired.

n the uni t.

27 28

Specifications

Specifications

Ope rat ing vol tage ra nge : 10 .0 ~18 .0Vo lt

Cir cuit po wer: max. 150W

Char ge curr ent ra nge: 0.1 ~7. 0A

Disch arg e cur ren t rang e: 0. 1~5 .0 A

Curren t dr ain fo r ba lancing Li-P o: 300 mAh /ce ll

NiCd/ NiMH ba tt ery ce ll cou nt : 1~ 27 cells

Lithium be tt ery ce ll cou nt: 1~8 Ser ies

Pb bat te ry volta ge: 2 to 36

We igh t: 57 4g( Net We ight)

Dim ension s: 170 X110 X35m m

V

Warranty and Services

We warra nt thi s produc t for a peri od of one yea r(12 months) from the date of
purc hase . The gua rante e appl ie s onl y to such mate rial or ope rati onal
defect s, which are pre sen t at the time of purc has ing t he product. During
tha t period, we wil l repa ir or repla ce wit hout s ervi ce c harge any produc t
deeme d defe cti ve due to those caus es. You wil l be require d to prese nt proof
of purchas e (i nvoi ce or rec eipt
due to wear, ove rloa ding, i ncompe tent ha ndling or usi ng o f i ncorrec t
ac cess orie s.

). This warrant y does not cove r the dama ge

29