Lenovo MP803 Battery Charger 7800mAh Portable Charger Compact External Battery Backup USB Power Bank Battery Pack with LED Light for Smart Phones,Tablets and Other Moblies-White This portable charger adopts high quality matt plastic material with anti-scratch,wear-resistant and heat dissipation.The textured high-grade flame-retardant plastic shell protects the power bank from damage.With high capacity 7800mAh lithium polymer battery,this battery charger can provides powerful and stable cuurent and voltage for each port with fast charging. Superior cell with stable quality and high compatibility for mobiles.Auto sleep technology with 0.1mA quiescent current make this battery pack holding ratio as long as 5 years.Built in soft light LED lights to show the remaining power capacity in digital when you touch its surface lightly. Intelligent regulation of output current and smart temperature sensor(automatic power-off for heat preservation once cell temperature is over 60??),this external battery is a perfect match for smartphones and tablets,high compatibility with most digital products with built-in 7 ways frequency current and 5V/2A self-adaptive output. Built-in 7800mAh lithium polymer battery to automaticly detects your devices which could intelligently recognize the input current of your device and provides the most suitable charging speed. Multi-functional phone charger: expansion-pressure reduction,current overload protection,overvoltage protection,real-time monitoring of output current,short-circuit protection Temperature protection,no-load power-off,USB self-circulation protection,overcharge and overdischarge protection,overcurrent protection.