LHS LEKTRON User Manual
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LEKTRON 45W CHARGER USER’S GUIDE
The Lektron 45W is a compact, high-performance, micro-processor controlled, fast
or slow charger with built-in lithium cell-balance circuitry. It is suitable for charging
Li-Ion, Li-Po, Li-Fe, Ni-MH, Ni-Cd and Lead Acid batteries from an 11 to 15V DC or
110-240V AC power source. With a maximum internal circuit power of 45W (35W
for Ni-Cd and Ni-MH) and a variable charge current of up to 4.5A , the Lektron
45W is a versatile and easy-to-use unit. The clear LCD screen shows all data and
is simple to use for selecting charge parameters.
The Lektron 45W includes a special multi-plug style balance adapter board to suit
most popular brands of Lithium batteries, AC and DC input power cords and a DC
output power cord with male T-connector.
USER’S GUIDE
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LEKTRON 45W CHARGER USER’S GUIDE
TAbLE Of CONTENTS
Service and Support ..................................................2
Warnings and Safety Notes ...................................3
Package Contents .......................................................4
Overview ......................................................................4-6
Battery Charge Current Values .............................6
Connections ...................................................................7
Programming Flow Chart ........................................8
Navigating Charge and Setup Menus ..............9
Quick-Start Charging Procedures .......................9
If you should have trouble with any of the information listed in this User's Guide,
or if you require additional information or help with this product, please contact
Customer Service at the address below:
Global Services
18480 Bandilier Circle
Fountain Valley, CA 92708
Phone: (714) 963-0329
Fax: (714) 964-6236
Email: service@globalhobby.net
SERvICE AND SUppORT
Initial User Parameter Setup .........................10-11
Lithium Battery Charging .............................112-13
Ni-Cd/Ni-MH Battery Charging....................14-15
Pb (Lead Acid) Battery Charging ................15-16
Process and Error Messages........................17-18
Blank Charging Data Sheet .................................18
Warranty and Liability Information ...................19
Warranty Service Information............................. 19
WARNING! PLEASE READ BEFORE USE!
Please read this entire User’s Guide prior to operating your new charger. It
contains all the information pertaining to your charger’s correct and safe use.
Using your charger as intended and in a safe manner will ensure your safety
and help prevent possible damage to your charger or batteries. Selecting the
correct parameters for your specific battery is the sole responsibility of the user.
Incorrect parameter selections or incorrect use can result in damage to your
batteries or to your charger.
The Lektron 45W Digital Charger is not intended for use by persons under 14
years of age, unless closely supervised by an adult. Before using your new
charger, read and understand the Warnings and Safety Notes section on the next
page. You should also read and understand any safety, warning and charging
information provided with your batteries.
Keep this User’s Guide in a safe place for future reference.
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LEKTRON 45W CHARGER USER’S GUIDE
WARNINGS AND SAfETy NOTES
These warnings and safety notes are important and must be followed closely.
Please abide by this information, and follow the instructions in this User’s Guide
closely for maximum safety, otherwise the charger and your battery may be severely
damaged. Failure to follow these instructions can also result in fire, injury to your
person or others, or loss of property.
• Only use the charger with the intended battery types. Do not attempt to charge
any other type of battery.
• Observe any cautions and warnings included with your battery. This is especially
true with Lithium batteries.
• Never leave the charger unsupervised when it’s connected to its power source.
If any malfunction is observed, immediately terminate the charging process.
• Keep the charger away from moisture, dust, dirt, heat, direct sunlight and
vibration. Do not drop it.
• The charger is designed to be powered by an 11 ~ 15V DC or 110 ~ 240V AC
power source only. Do not connect both at the same time!
• Double-check all connections prior to starting the charging process.
• The charger and the battery to be charged should be placed on a heat-resistant,
non-flammable and non-conductive surface. Never place them on a car seat,
carpet or similar. Blocking the vents on the bottom of the charger can cause
the charger to overheat, damaging the charger or even resulting in fire! Keep
flammable and volatile materials well away from the operating area.
• When charging Lithium batteries, we suggest using a charging safety bag,
available from most hobby retailers.
• Be sure to fully understand the information for the battery to be charged. If the
charging values are incorrect, the battery can be severely damaged. Incorrect
charging of Lithium batteries can cause a fire or explosion.
• Never charge a battery than appears damaged, and never charge a Lithium
battery that is swollen in any way.
• To avoid short-circuits between the output power adapter cord connectors,
always connect the adapter cord to the charger first and only then to the battery to
be charged. Reverse the sequence when disconnecting.
• Carefully verify the capacity and voltage of your Lithium battery before
charging it. It may be composed of mixed parallel and series connected cells.
In parallel, the capacity of the battery is multiplied by the number of cells in
parallel (2P means x2), but the voltage remains the same. The voltage imbalance
possible in parallel packs can cause a fire or explosion during the charging
process. We recommend using Lithium batteries in series cell format only.
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LEKTRON 45W CHARGER USER’S GUIDE
pACKAGE CONTENTS
Before using your Lektron 45W Digital Charger, make sure that all the required
accessories are included. This is also a good time to become acquainted with
these various accessories.
• 1 PC. Lektron 45W Digital Charger
• 1 PC. AC Input Power Cord
• 1 PC. DC Input Power Cord w/Two Plug-In Alligator Clips
• 1 PC. Output Power Adapter Cord (4mm Banana to Male T-Connector)
• 1 PC. Multi-Plug Balance Adapter Board w/Adapter Harness
• AC Input Voltage: 110 ~ 240V
• DC Input Voltage: 11 ~ 15V
• Charge Power Output: 45W*
• Charge Current: 0.1 ~ 4.5A
• Lithium Cell Count: 1 ~ 4S (Series)
• Ni-Cd/Ni-MH Cell Count: 1 ~ 10C
• Pb Battery Voltage: 2 ~ 12V
OvERvIEW
• AC/DC Power Input In a Compact and Lightweight Design
• Switching AC Power Supply Delivers up to 4.5 Amps of Charge Current
• Built-In XH Balance Port with Multi-Plug Balance Adapter Board
• Charges 1 to 4 Li-Ion, Li-Po or Li-Fe Cells or 1 to 10 Ni-Cd or Ni-MH Cells
• Charges Pb (Lead Acid) Batteries from 2 to 12 Volts
• Easy to Read LCD Screen Displays Voltage, Charge Current, Time & Capacity
• Custom CC/CV Algorithm Safely Charges Li-Ion, Li-Po and Li-Fe Batteries
• Precise Peak-Detection w/Auto-Trickle Charge for Ni-Cd and Ni-MH Batteries
• Push-Button Controls and Audible Tones for Easy Set Up and Control
• Solid State Reverse Polarity and Current Overload Protection
fEATURES
SpECIfICATIONS
Use the information in this section to familiarize yourself with your Lektron 45W
Digital Charger.
• Charge Safety Timer: 180 Minutes
• Ni-Cd/Ni-MH Peak Sensitivity: 8mV/5mV
• Lithium Balancing Accuracy: 5mV/Cell
• Battery Capacity Range: 100 ~ 9900mAh
• Dimensions: 4.3 x 3.2 x 1.5 Inches
• Weight: 8.1 Ounces
*Ni-Cd/Ni-MH Charge Power Output = 35W. Higher capacity Ni-Cd and Ni-MH battery packs
will charge at a lower charge current than 4.5 amps. This is normal.
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LEKTRON 45W CHARGER USER’S GUIDE
OvERvIEW
Balance Port
Power Outputs
Input Power
110 ~ 240V AC
Input Power
11 ~ 15V DC
LCD Screen
Type/Stop Increase/Display Decrease/Start
Input Power 110 ~ 240V AC:
Used to power the charger from a 110 to 240V AC power source, using the supplied
AC input power cord.
Power Outputs:
Used to charge Lithium, Ni-Cd, Ni-MH and Pb (Lead Acid) batteries, using the
supplied output power adapter cord. The power output sockets accept 4mm
banana connectors. Red is positive and black is negative.
LCD Screen:
Displays programming and process information in an easy to read format.
Input Power 11 ~ 15V DC:
Used to power the charger from an 11 to 15V DC power source, using the supplied
DC Input power cord and plug-in alligator clips.
Balance Port:
Used to plug the included balance adapter board into to balance charge 2 to 4S
Lithium batteries of varying brand and type.
Type/Stop Button:
Press to select the battery type and the charge current rate, and to manually stop
the charging process.
INpUTS, OUTpUTS AND fUNCTION bUTTONS
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LEKTRON 45W CHARGER USER’S GUIDE
Number of Cells
1 Cell
2 Cells
3 Cells
4 Cells
Increase/Display Button:
Press to select the battery type, increase programming values and select different
data to be viewed on the LCD screen.
Decrease/Start Button:
Press to decrease programming values and start the charging process.
OvERvIEW
INpUTS, OUTpUTS AND fUNCTION bUTTONS, CONTINUED....
RECOmmENDED SAfE CHARGE CURRENT vALUES
Ni-Cd/Ni-MH
Nominal Voltage Level: 1.2V/Cell
Recommended Fast Charge Current: 1C to 2C, depending on the
performance of the cell. Higher discharge batteries can charge at 2C.
Nominal Voltage Level: 3.6V/Cell
Maximum Charge Voltage: 4.1V/Cell
Recommended Fast Charge Current: 1C or Less (0.5C recommended).
Nominal Voltage Level: 3.7V/Cell
Maximum Charge Voltage: 4.2V/Cell
Recommended Fast Charge Current: 1C or Less. Some Li-Po cells can
be charged at 2C or more, but check with the battery manufacturer first.
If in doubt, charge at 1C.
Nominal Voltage Level: 3.3V/Cell
Maximum Charge Voltage: 3.6V/Cell
Recommended Fast Charge Current: 3C or Less. Check with the battery
manufacturer first.
Nominal Voltage Level: 2.0V/Cell
Maximum Charge Voltage: 2.46V/Cell
Recommended Fast Charge Current: 0.4C or Less
C = X ÷ 1000 Where X = Battery Capacity (eg: 2200mAh, therefore, 1C = 2.20 amps charge current)
Li-Ion
(Lithium Ion)
Li-Po
(Lithium Polymer)
Li-Fe
(Lithium Phosphate)
Pb
(Lead Acid)
bATTERy CHARGE CURRENT vALUES
bATTERy pACK NOmINAL vOLTAGE vALUES
Ni-Cd/Ni-MH: Number of Cells x 1.20V (e.g. 8 Cells = 9.6V)
Li-Ion
3.6V
7.2V
10.8V
14.4V
Li-Po
3.7V
7.4V
11.1V
14.8V
Li-Fe
3.3V
6.6V
9.9V
13.2V
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