18650 Rechargeable Lithium Battery
2400mAh
Product Code: BAT1000
Product name: 18650-34B Rechargeable Li-ion Battery
Type: Lithium-ion (18650 format)
Nominal voltage: 3.6 V (up to 4.2 V when fully charged)
Capacity: 2400 mAh → good for high-drain devices
Input / Output
Output: 4.2 V / 600 mA
Charging & Performance
Max charge voltage: 4.2 V (standard for Li-ion)
Max charge rate: 1.5C
→ means it can theoretically be charged at 1.5 × capacity (~5.1 A), though this is rarely used in practice
Charge cycles: up to 1000 cycles (expected lifespan)
Safety & Protection
Built-in PCB (protection circuit):
Dual MOS design (improved safety)
Overcharge cutoff: 4.2 V
Over-discharge cutoff: 2.5 V
Internal resistance: < 50 mΩ
→ lower resistance = better efficiency and performance
Size & Weight
Dimensions: 69.5 mm (length) × 18.5 mm (diameter)
Weight: 48 g
→ slightly longer than standard 18650 due to protection circuit
Suitable for:
Flashlights
Power banks
Small battery packs (e.g., DIY or light e-bike use)
General electronics
Offers good capacity + built-in safety
Important Notes
Do not charge above 4.2 V
Do not discharge below 2.5 V
Always use a Li-ion compatible charger
Check device compatibility (protected cells are slightly longer)
