Li ion LG 18650 HE4 2500mAh 20A rechargeable battery for power tool

18650 HE4 Battery Specifications

Item Parameters Remark
Model 18650/HE4
Rated Capacity 2500mAh Standard discharge (0.2C) after standard charge
Nominal Voltage 3.7V
Voltage at End of Discharge 2.75V Discharge cut-off voltage
Charging at End Voltage 4.20V
Standard Charge CC 0.2C / CV 4.20V / Cut-off 0.02C Charge time approx. 6.0h
Standard Discharge 20A
Fast Charge CC 1C / CV 4.20V / Cut-off 0.02C Charge time approx. 2.5h
Fast Discharge CC 1C / End Voltage 3.0V
Cycle Life 2000 cycles (100% DOD)
4000 cycles (80% DOD)
7000 cycles (50% DOD)
Residual capacity ≥80% of rated at 1C rate
Operating Temperature Charge: 0–55°C / Discharge: -20–60°C 60±25% R.H., bare battery
Storage Temperature <1 year: -20–25°C
<3 months: -20–45°C
60±25% R.H., at shipment

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YiFang specializes in batteries, chargers, battery packs, and power solutions, including Li-ion, LiMn (IMR), Ni-MH, and LiFePO₄ batteries.

Yes, we offer flexible OEM and ODM customization, including product design, specifications, and packaging to meet your exact requirements.

Our products are widely used in e-cigarettes, UAVs, balance scooters, electric bikes, electronic equipment, toys, flashlights, and other commercial and industrial applications.

YiFang operates its own factory with automated production lines, producing up to 100,000 units daily, ensuring consistent quality and timely delivery.

You can contact us via our website inquiry form, email, or phone. Our team is ready to provide professional guidance and customized solutions.

Our products are widely used in e-cigarettes, UAVs, balance scooters, electric bikes, electronic equipment, toys, flashlights, and other commercial and industrial applications.

Our products are widely used in e-cigarettes, UAVs, balance scooters, electric bikes, electronic equipment, toys, flashlights, and other commercial and industrial applications.

We provide 6–12 months warranty, responsive customer support, and global insurance coverage for long-term reliability and customer peace of mind.

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