4.2V 8.4V 12V 12.6V 16.8V 21V 25.2V 12V 29.4V dc adapter charger for 1S / 2S / 3S / 4S / 5S / 6S / 7S lithium ion battery, compact size, easy to carry, CC + CV mode stable function, AC to DC battery charger with red and green led indicator lights, a wide range of electric bicycles, power tools and other fields.
