3.7 V battery adapter for flashlight

3.7 V battery adapter for flashlight

thingiverse

Users Can Easily Convert Standard Torches to Use Rechargeable Batteries by Swapping Out Three Alkaline Cells with 3.7 Volt Lithium-Ion Batteries and a Special Adapter. This Hack Allows People to Reduce Waste, Save Money, and Enjoy the Convenience of Rechargeable Power in Their Everyday Flashlights.

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