... , 50/60Hz2) Output voltage: 3.2V,3.6V,3.7V, 4.2V,6V, 7.2V, 8.4V,12.6V,16.8V ... Various plastic cases optional14) Wall mount plug in, easy to use15) Used to charge laptop,electric bike ( E-bike, E-bicycle ... -acid, Lipo4 battery pack available).We also provide 5V,9V,18V, 21V, 25V, 36V, 48V battery charger. The MOQ ... Paypal is welcome. Adjustable battery charger 3.2V 3.6V 3.7V 7.2V 7.4V 8.4V 6V 11.1V 12. ...