3.7V Rechargeable Lithium Batteries (2-Pack) for Flashlights, Headlamps & RC Cars

Overview & Features

Battery Compatibility: The bottom-top type battery in this product measures 70mm x 18.5mm, which is slightly 5mm longer than a regular 18650 battery due to its higher capacity. Please ensure compatibility with your device before purchase.

Reliable 3500 mAh Capacity: The HW 3.7V 18mm rechargeable battery boasts an actual 3500mAh capacity, providing long-lasting use and reusability. Unlike some batteries that claim over 5000mAh, their actual capacity is often much lower.

Easily Rechargeable: Equipped with a built-in micro USB port, you can easily charge the battery using the included 2-in-1 USB cable. You don’t need an additional battery charger; just plug into any USB port anytime and anywhere. With over 1200 charge cycles, these batteries are eco-friendly and help you save money.

Safety Assurance: The battery features an integrated safety circuit that protects it from overcharge, over-discharge, short-circuit, and overheating. This ensures complete safety during charging and use.

High Performance: The HW 3.7V Li-ion battery with 3500mAh capacity supports stable 3.7V output voltage. This ensures stable performance and longevity in devices, making it a great replacement for high-use electronics.

Environmentally Friendly: These rechargeable 3.7V batteries from HW are designed to be efficient and energy-saving. Compared to alkaline batteries, they offer over 1200 cycles, low self-discharge, and constant voltage, providing stable power to devices. They are recyclable, helping to save expenses and reduce environmental pollution.

Note: Upon receiving the batteries, please fully charge them (50%-60% capacity was precharged). After 3-5 cycles of charge and discharge, the batteries will reach their best performance.