20pcs 3.7V 850mAh Rechargeable Li-ion Pack

This sale is for a set of 20 rechargeable Li-ion cells, each with a nominal voltage of 3.7V and a capacity of 850mAh. The pack contains twenty identical 3.7V/850mAh lithium-ion cells intended for use in battery replacements or custom battery assemblies. These are rechargeable Li-ion cells — charge only with a compatible Li-ion charger and follow standard safety precautions when assembling or using battery packs.