LG-ICR-B4-18650  2600mAh 3.6V


The LG-B4-ICR18650( LGABB41865) battery comes up with a nominal capacity of 2500mAh, the voltage of 3.6V.This is an absolutely excellent cell for anyone seeking high performance 18650 cells. This battery is one of the very good high current and high capacity battery types.

This is one of the top cells when you need both capacity and current.

Application: Note PC


  • Model: INR18650-B4
  • Size: 18650
  • Style: Flat Top
  • Chemistry: ICR
  • Nominal Capacity: 2600mAh
  • Nominal Voltage: 3.6v
  • Rechargeable: Yes
  • Approximate Dimensions: 18.30mm x 65.10mm
  • Approximate Weight: 48.0g


There shall be no such defects as deep scratch, crack, rust, discoloration or leakage, which may adversely affect the commercial value of the cell.


Diameter :  18.29 ± 0.11 mm

Diameter is defined as the largest data value measured on the “A” area of a cylindrical cell

Height :  ≤ 65.05 mm

Nominal Specification

Item Condition / Note Specification
Capacity Std. charge / discharge Nominal 2,600mAh (Cnom)
Minimum 2,500mAh (Cmin)
Nominal Voltage Average 3.6V
Standard Charge Constant current 0.5C(1250mA)
Constant voltage 4.2V
End current(Cut off) 50mA
Max. Charge Voltage 4.2V
Standard Discharge Constant current 0.2C(500mA)
End voltage(Cut off) 2.75V
Max. Discharge Current -20 ~ 5℃ 0.5C(1250mA)
5 ~ 45℃ 2.0C(5000mA)
45 ~ 60℃ 1.5C(3750mA)
Weight Approx. Max. 48.0g
Operating Temperature Charge 0 ~ 45℃
Discharge -20 ~ 60℃
Storage Temperature( for shipping state) 1 month -20 ~ 60℃
3 month -20 ~ 45℃
1 year -20 ~ 20℃

Performance Specification

4.1 Standard test condition

4.1.1 Standard Charge

Unless otherwise specified, “Standard Charge” shall consist of charging at constant current of 1050mA. The cell shall then be charged at constant voltage of 4.2V while tapering the charge current. Charging shall be terminated when the charging current has tapered to 50mA. For test purposes, charging shall be performed at 23ºC ± 2ºC.

4.1.2 Standard Discharge

“Standard Discharge” shall consist of discharging at a constant current of 420mA to 2.5V. Discharging is to be performed at 23 ºC ± 2 ºC unless otherwise noted (such as capacity versus temperature).

4.1.3 Fast Charge / Discharge condition

Cells shall be charged at constant current of 4000mA to 4.2V with end current of 100mA. Cells shall be discharged at constant current of 10000mA and 20000mA to 2.5V. Cells are to rest 10 minutes after charge and 30 minutes after discharge.

dnkpower-LG 18650 B4 2600mAh
dnkpower-LG 2600mAh 18650 B4


1.)Do not use different charger. Do not use cigarette jacks (in cars) for charging.
2.) Do not charge with constant current more than maximum charge current.
3.)Do not disassemble or reconstruct the battery.
4.)Do not throw or cause impact.
5.)Do not pierce a hole in the battery with sharp things. (such as nail, knife, pencil or drill, etc.)
6.)Do not use with other batteries or cells.
7.)Do not solder on battery directly.
8.)Do not press the battery with overload in manufacturing process, especially ultrasonic welding.
9.)Do not use old and new cells together for packing.
10.)Do not expose the battery to high heat. (such as fire)
11.)Do not put the battery into a microwave or high pressure container.
12.)Do not use the battery reversed.
13.)Do not connect positive(+) and negative(-) with conductive materials (such as metal, wire)
14.)Do not allow the battery to be immerged in or wetted with water or sea-water.

How to Custom 18650 Battery Pack

We have the unique ability to develop custom 18650 battery pack to fit your needs. Our expert team of chemists, engineers, and manufacturers who use proven chemistry and production methods that will get from spec to production fast. Slim, flexible, more powerful.


  • Custom Voltage Range: 3V ~ 120V
  • Custom Discharge Current: 0.2C ~ 120C (0.01A-1000A)

  • Custom BMS: Size, Features, Communication, Cut-off, Temperature
  • Custom Battery Size: Starting 0.5mm Thickness
  • Battery Temperature from -40°C–85°C
  • Custom Connector: JST/Molex/Hirose/Anderson/TE/Amphenol  Etc


  • Custom 18650 Battery Pack, MOQ 100 pcs
  • Custom Samples as fast as 3 Days
  • Strict Quality Control, No Safety Concerns Ever
  • Instant Customer Support, Solve Any Problem in Time.
custom lithium battery packs collection

custom lithium battery packs collection