... DC 2.8-8.7V 250mA 4 in 1 USB Universal Charger for Car and Li-ion batterySpecifications:1 ApplicationLithium ion ... , over current protection, over-voltage protection, overload protection, constant pressure function, ect.2 Small volume, light weight, easy to carry3 ... and long lifeWe supply all kinds of mobile phone charger, universal charger, for more information, please don’t hesitate to contact ...