2 Pack USB Rechargeable Lithium Batteries for Flashlights & Headlamps

Deep Insights Into Features

Battery Specifications and Benefits

• High-Performance Battery: Reliable True Capacity 3500 mAh, effectively doubling the capacity of a regular 18650 battery. Ideal for high-performance devices like flashlights, toys, and headlamps.

• USB Rechargeable: Built-in micro USB port allows you to charge the battery with a single, included 2-in-1 USB cable. No need for an additional charger. Enjoy over 1200 charge cycles, ensuring eco-friendliness and cost savings.

• Safety Features: Equipped with integrated safety circuits that protect against over-charge, over-discharge, short-circuit, and overheating. Complete safety assurance ensures your devices run smoothly and last longer.

• High Output Voltage: HW 3.7V Li-ion batteries provide a stable 3.7 volt output voltage, ensuring your devices operate more consistently and last longer, making them perfect replacements for frequently used devices.

• Environmentally Friendly: Choose HW’s rechargeable 3.7V batteries for a sustainable and energy-efficient option. Unlike alkaline batteries, these rechargeables offer over 1200 cycles, low self-discharge, and a constant voltage supply, reducing expenses and environmental pollution.

• Pre-charging Recommendation: The batteries come pre-charged to 50%-60% capacity. Fully charge them to achieve the best performance after 3-5 cycles of charge and discharge. Start using your devices with the confidence that they are ready to drive your applications seamlessly.

• Compatibility Note: Since this battery is Bottom-Top type, with dimensions of 70MMx18.5MM (slightly longer due to higher capacity), please check compatibility with your device before purchase.