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How big are the Fenix 16340 batteries?

The size of the USB rechargeable ARB-L16 "U" battery, the ARB-L16-700U, is 16mm x 34mm (.6" x 1.3")

The size of the USB rechargeable ARB-L16 "U Plus" battery, the ARB-L16-700UP, is 16.8mm x 35.5mm (.66" x 1.4")

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