RED SHIELD Universal Battery Charger with Intelligent LCD Indicator Display & USB Output Port for Charging Smartphones. Suitable for 3.6V~3.7V Lithium-Ion Cell Phone & Camera Batteries. Auto Shut-Off. &#128155;With this wall power adapter, most cell phone and camera batteries (Li-Ion 3.6V ~ 3.7V) can be charged with this handy device. Not just that, but you can also charge your smartphone through the USB output port for convenient charging. The clip will help battery stay in place, so it doesn't slide or fall out. &#128155;Auto polarity detection helps convert to accommodate the charger's positive and negative electrodes so you can put them in any way. It'll automatically turn off after charging has been finished with the auto shut off feature so that you can save electricity and prevent overcharging. &#128155;The easy to read intelligent LCD indicator screen shows the charging process of your cell phone or camera battery with 4 bars, each showing approximately 25% charged. &#128155;It is compatible with most Samsung, LG, HTC, Nokia, Motorola, etc. as long as they have removable batteries. Our charger is only suitable for the batteries that have the terminals on the top or bottom. It will not work with the ones in the front or back. &#128155;Foldable AC plug helps make it easy to carry it around. Input: AC 100V~240V, 50/60Hz; Output: 4.2V, 300mA; Suitable for batteries from 300 ~ 3000mAH.