This compact 3×18650 battery holder lets you build a portable dual-USB power bank or use it as a secure storage and charging shell for smartphones. Designed for DIY projects, the durable case organizes three 18650 cells, provides stable connections, and exposes dual USB output ports for charging one or two devices. The snap-fit cover keeps batteries secure during transport while allowing easy access for swapping cells.
Ideal for hobbyists, tinkerers, and anyone who prefers to assemble their own power solutions, this holder is compatible with standard 18650 rechargeable batteries and integrates into custom charging setups. It’s lightweight and pocket-friendly for everyday carry or emergency backup use, and works well as a replacement shell for power bank repairs.
Highlights:
– Holds three 18650 cells
– Dual USB outputs for simultaneous device charging
– Secure snap-fit cover for safe transport
– Compact, DIY-friendly design
Price: $5.78
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