We no longer stock this product. Order the same battery online here.

TrustFire TR10440 600mAh** 3.7V AAA Lithium Ion Battery with Protection Circuit.

Our old flashlight models require the use of this specific battery. Our products will not operate with any other lithium ion or alkaline battery. Each battery provides approximately 1.5 hours of continuous use with our Single-Sided Flashlight and 1 hour of continuous use with our Double-Sided Flashlight. Solid color modes will use less battery life than strobing/blinking modes.

Charge this battery with our HG-103W charger product.

Lithium Ion Battery Disclaimer

WARNING: this battery is not meant to be a direct replacement for AAA alkaline/NiMH batteries in consumer devices. These lithium-ion batteries operate at more than twice the voltage of an alkaline battery and 3 times the voltage of a NiMH cell and may damage or destroy your device.

NOTE: Dimensions larger than standard AAA battery. May not fit all devices and/or chargers. It does not fit UltraFire WF-138 charger.

NOTE: Use special caution when working with Li-ion cells, they are very sensitive to charging characteristics and may explode or burn if mishandled. Make sure the user has enough knowledge of Li-Ion rechargeable batteries in charging, discharging and assembly before use. Always charge in/on a fire-proof surface. Never leave charging batteries unattended. We are not responsible for damage if there is any modification of the batteries/chargers in any form or shape (including pack making). We are not responsible for any damage caused by misuse or mishandling of Li-Ion batteries and chargers. We only recommend using Lithium Ion rechargeable batteries with a control circuit (protection PCB) to assure safe charge, discharge, etc, use of lithium ion batteries without a protection circuit is potentially hazardous