It is very important to know the maximum charging
current of the battery as excessive current could
inuence the life span of battery and/or cause damages.
In addition, excessive current can cause heating and/or
explosion of the battery during the charging process.
The charging and discharging capacity of battery is
usually marked with C value. Multiplying the charging C
value and battery capacity equals to the maximum
charging current supported by the battery. For example,
for a 1000 mAh battery with a charging capacity of 5C,
the maximum charging current would be 1000*5=5000mA; therefore, the maximum charging current is 5A.
For a lithium battery, if it is impossible to conrm the
supported charging C value, please set the charging
current below 1C for the sake of its (lithium battery)
safety.
The reference relation between C value and charging
time: charging time ≥60 minutes/charging C value (it
therefore needs around 60~70 minutes to complete
charging with 1C). Due to dierences in battery
conversion eciency, the period to complete the
charging might be extended.
In this mode,the battery could be charging and
discharging up to99cycles.And the memory eect of
rechargeablebattery could be erased under this mode
as well.
Circulative function
Please select storage functions if the battery will not be
use for a long time.When selecting storage functions,
automatic charging task can be initiated if the battery is
lower than the preset storage voltage; likewise, automatic discharging task can be initiated if the battery voltage
is higher than the preset storage voltage.
Storage functions
The charger would identify the battery as an
non-rechargeablebattery if it over-voltage into 0V.Users
could select this mode to reconditioning the
battery.Please change the battery if it still could not be
charged after many times activation.
Battery activation use a low current to cycle charge-discharge-charge the battery. The battery would be
activated in cyclicalprocess.Sometime it needs 2-3
*battery to complete activate it.
Activation function
This function is applied to the battery which is storaged
for more than 2 weeks or with weak discharge
performance.And this function could be also used to
identify and match the battery capacity.
Analyze function
The maximum output of USB port is 2.1A.The charger
could charging battery and your phone at same
time.The battery chargingpower will be reduced
automatically when charging over USB.
The charger is equipped with a function of measuring
the cells’ internal resistance, The cell voltage should be
measured and calculated after the charging task has
been initiated for 10s. The battery internal resistance can
slightly vary under dierent electric quantities while the
measured resistance value is usually relatively low as the
electric quantity is large.
The charging current should be adjusted instantly as the
charger measures the internal resistance of the battery;
therefore, it is normal phenomenon for acute change of
current to occur during charging.
USB charge function
When the battery was reversed or short circuit,the
charger would continue to prompterror until it has been
take o. And the corresponding slots status will be
showed as below:
batteryshort circuit and reverse
polarity protection
How to conrm Charging Current
-- -- --
Battery Reverse
internal resistance measurement function
After the charging is completed, the will displayed
on the screen instead of battery percentage .It is normal
for voltage decline to occur due to dierent performances.As the number of the charge cycle grows, the
performance decreases, and the voltage decline
phenomenon becomes obvious. To charge the battery
with a larger current would also cause a more obvious
voltage decline after the charging is complete.
Q: Why the charger could not identify the battery?
A: Pull out and plug in the battery again to ensure all
connections are reliably contacted; Please check
whether the positive and negative electrode of the
battery is well connected.And please try to put it into
another slot see if the battery could be identied.Or
please check whether the battery is over-voltage to a
empty voltage.If the error reminder continues, please
check whether the metal parts on the battery interface
are oxidized or burned resulting in unreliable connection.
Q: Could I use the C4 to discharging aLi-ion or alkaline
non-rechargeablebattery?I try to verify the battery
capacity.
A: The C4 could be used to discharge non-rechargeablebattery.But please note:Never charger an
non-rechargeablebattery.
Q: Error in power on self-testing:
A: The charger can automatically carry out a self-test-
ing when connected to a power supply. A self-testing
error warning sound should be heard when the
charger is connected to the battery; power on after
removing the battery for 5 minutes.
Q: I put 4 AA batteries into C4 and set the charging
current to 3A,why theactualcurrentcould not reach
to 3A?
A: Themaximumcharging power is 30W.The charger
would be automatic change to a proper current to
start charge if the setting exceeded the total power.
ISDT always focus on pursuit of perfection.Every
performanceand algorithm improvement,visual
optimization is built slowly over timeby all the
engineers.And all of this reected in the
rmware.More details about latest rmware please
check our website.
C4 smart charger upgrade steps:
1.Connect the C4 and PC with a Micro USB cable
2.Power on the C4 to start work,and then the charger
will enter into rmware upgrade mode automatically.
3.Use the “Updata program” to start update according
to theprompts.
rmware upgrade
Judgment of complete charging
Touch the button under lightcondition (no
rechargeablebattery) to make the system default pop
up,and the items are as follows:
C4 smart charger conforms to relevant EC command
and relevant commands in B: 2010,CHAPTER 15, FCC
For electronic products with this marking in
their manuals, please separately dispose
them with family garbage. When a charger
gets spoilt and cannot be used anymore,
please take it to a nearby garbage station or
recycle center.
System default
FAQ
Product qualication declaration
Buzzer volume: the default is OFF, the operation sound
would be blocked, but not the sound of error warning.
System Information
Factory Parameter
Language
Volume
Backlight
Capacity Limit
Auto Charge
Cycle Di splay
Back
system software information
resettofac torydefault s
Default language setting
Three gears : high, medium, low ; and o
Three gears : high, medium, low
Set themaxim um battery ca pacity
Set the wait tim e for auto-cha rging
cycle mode s details in manual o r Auto way
back
Testing standards
EN 61000-6 -3:2007 + A1:2011
EN 61000-6-3:2007
Settings
System Information
Factory Parameter
Language
Volume
Backlight
Capacity Limit
Auto Charge
Cycle Display
Back
...
...
English
Low
High
On
3s
10s
result
Yes
Yes