Samsung 25R 18650 2500mAh 20A rechargeable battery

Official specifications:

Nominal discharge capacity: 2,500mAh

Nominal voltage: 3.6V

Standard charge: CCCV, 1.25A, 4.20 ± 0.05 V, 100mA cut-off

Rapid charge: CCCV, 4A, 4.20 ± 0.05 V, 100mA cut-off

Charging time: Standard charge : 180min / 100mA cut-off

Rapid charge: 60min (at 25°C) / 100mA cut-off

Max. continuous discharge: 20A(at 25°C), 60% at 250 cycle

Discharge cut-off voltage: 2.5V

Cell weight: 45.0g max

Cell dimension: Height : 64.85 ± 0.15mm, Diameter : 18.33 ± 0.07mm

Operating temperature (surface temperature): Charge : 0 to 50°C (recommended recharge release < 45°C), Discharge: -20 to 75°C (recommended re-discharge release < 60°C)

Storage temperature (Recovery 90% after storage): 1.5 year -30~25°C, 3 months -30~45°C, 1 month -30~60°C