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The new smart charger from Efest is a multifunctional battery charger for 3.7V batteries such as 16340, 18350, 18650, 18490, 14500, 18500 and more. The Smart Charger will automatically discharge current to charge different size batteries with four kinds of protection including over-discharging, over-voltage, short-circuit, and reverse polarity protection. The charger automatically shuts off when battery is fully charged and has a DC wide voltage (12-24V) charging mode.
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