3.65V-2600mAh-LG-GBB3-18650 Battery

LG18650B3 Battery–(LGGBB31865 3.65V )

The LG 18650 B3 battery – LGGBB31865 battery comes up with a nominal capacity of 2600mAh, the voltage of 3.65V .

The LG B3 is a lithium-ion cell intended for use in 18650 battery packs. It can power a wide range of devices including a shaver/trimmer, electric sprayer, or fiber optic tester.

The B3 ships from Korea or Hong Kong to anywhere in the world. Our facility in Dongguan, China provides additional services such as cell assembly into battery packs, testing, or the addition of nickel tabbing, wiring, or other accessories.

This is an absolutely excellent cell for anyone seeking high performance 18650 cells.


Max. continuous discharge current: 30A
Capacity: Nominal 2600 mAh, Minimum 2500 mAh
Standard charge: 0.5C (1250 mA), 4.2 volt, cutoff 50mA
End voltage: 3 volt
Max. discharge current: 1.5C (3750 mA)
Operating temperature charge: 0 to 45 °C
Operating temperature dsicharge: -20 to 60 °C

Application:a wide range of devices including a wireless headset, portable page scanner, or smart video doorbell


1.5C continuous discharge current

LG ICR18650B3 2600mAh battery maximum discharge current 3.75A, widely use on LED flashlights; Toys Electronics power devices.

Fast charge and no memory effect

Maximum continuous charge current 2500mA, can be full charged in about 2.5 hours. LG Li-ion 18650 battery has no memory effect and with minimal self-discharge.

High discharge performance

LG ICR18650B3 battery provide powerful and constant power to the device or equipment, the discharge curve is quiet beautiful with high current load.

Reliable and safe

LG Chem is the leader of Li-ion 18650 battery technology, provide only reliable batteries, it is 100% safe by using the battery according to the cell datasheet.


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 : ≤ 65.15 mm

Nominal Specification of LG-18650-MG1

ltem Condition / Note Specification
Capacity Std. charge / discharge Nominal 2,600mAh (Cnom)
Minimum 2,500mAh (Cmin)
Nominal Voltage Average 3.65 V
Standard Charge Constant current 0.5C(1250mA)
Constant voltage 4.2V
End current(Cut off) 50mA
Max. Charge Current - 1.0C(2500mA)
Standard Discharge Constant current 0.2C(500mA)
End voltage(Cut off) 3.0V
Max. Discharge Current For continuous charge 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℃ Recovery 90%
3 month -20 ~ 45℃ Recovery 90%
1 year -20 ~ 20℃ Recovery 80 %

Performance Specification

4.1.1 Standard Charge

Unless otherwise specified, “Standard Charge” shall consist of charging at constant current of 0.5C. 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 0.2C to 3.0V. 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 0.5C to 4.2V with end current of 50mA. Cells shall bedischarged at constant current of 0.5C to 3.0V. Cells are to rest 10 minutes after charge and 20 minutes after discharge.

Item Condition / Note Specification
Initial AC Impedance Cell shall be measured at 1kHz after charge per Standard Charge ≤ 70 mΩ, without PTC
Initial Power Cells shall be charged per Standard Charge and discharged per Standard Discharge within 1h after full charge. ≥ 2500 mAh
Cycle Life Cells shall be charged and discharged per high drain charge rate 300 cycles. A cycle is defined as one charge and one discharge. 301st discharge power shall be measured per standard charge and standard discharge. ≥ 80 % (of Cmin in 2.1)
ltem Condition Specification
Storage Characteristics Cells shall be charged per Standard Charge and stored in atemperature-controlled environment at 23°C ±2C for 30 days. After storage,cells shall bedischarged per Standard Disharge to obtain the remainingcapacity. Capacity remaining rate290%(Cmm in 2.1)
High TemperatureStorage Test Cells shall be charged per Standard Charge and stored in atemperature-controlled environment at 60°C for1 week. After storage,cells shall be dischargedper Standard Disharge and cycled per High Drain Rate Charge for 3 cycles toobtain recovered capacity'. No leakage,Capacity recovery rate ≥80%
High Temperature andHigh Humidity Test Cells are charged per Standard Charge and stored at 60C(95% RH)for 168 hours. After test, cells aredischarged per Standard Disharge and cycled per High Drain Rate Charge for 3cycles to obtain recovered capacity. No leakage,No rustCapacity recovery rate ≥80%
Thermal Shock Test 65°C(8h)- 3hrs →-20℃ (8h) for 8 cycleswith cells charged per Standard Charge After test, cells aredischarged per Standard Disharge and cycled per High Drain Rate Charge for 3cycles to obtain recovered capacity. No leakageCapacity recovery rate ≥80%
TemperatureDependency of Capacity Cells shall be charged per Standard Charge at 23℃ ± 2℃and discharged per Standard Disharge at the followingtemperatures.
Charge Discharge Capacity
23℃ -10℃ 60% of Cm
0℃ 90% of Cm
23℃ 100% of Cm
60℃ 95% of Cm

* Remaining Capacity : After storage, cells shall be discharged with standard condition(4.1.2) to measure the remaining capacity.

** Recovery Capacity : After storage, cells shall be discharged with standard discharge condition(4.1.2), and then cells shall be charged with standard charge condition(4.1.1), and then discharged with standard discharge condition(4.1.2). This charge / discharge cycle shall be repeated three times to measure the recovery capacity


1). Do not disassemble, dispose of in fire, heat or short circuit.
2).Do not insert batteries with the(+)and(-)reversed.
3). Do not mix fresh batteries with used batteries.
4).Do not submerge the battery in water

Want More Details: Download our battery design ebook.Lithium Battery Design Design Ebook Download(2M, 20 pages, PDF)

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


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