rechargeable battery

Stackable USB Rechargeable Battery System

Power Stacker is a portable, modular, USB rechargeable lithium-ion battery pack. Stack them together for power hungry projects or separate them for smaller projects with this modular system. The Gerber, BOM, and .STL files are available below. Power Stacker does what other USB rechargeable batteries have failed to do, and that’s the ability to combine …

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