Efficiently charge your battery with the compact Efest Slim K1 battery charger. This single slot charger with a USB input charges at 1A. There is a LED screen which indicates your charging status to let you know when your battery is fully charged. Featuring short circuit, reverse polarity and overcharge protection. The Efest Slim K1 Charger is compatible with different types of 3.6V and 3.7V lithium batteries used in devices such as electronic cigarettes, flashlights, etc.
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