This battery case holds 2 x 18650 3.7 V batteries, making it convenient for use as an external power supply for your projects.
18 Item Items
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This battery case can hold 2 x 18650 batteries and it can be used as a 7.4V power supply for your electronic projects. Combined with two 18650 batteries, it's a convenient power supply, ideal for outdoor environments and small robots.
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