Work's like a charm. Light enough (weighing 180 grams) to be Carried daily. I use this battery pack on a daily basis to charge my mobile / tablet on the way while traveling and when i am at my University. This Smart Power Bank Model No: RP-PB31 is a 7800 mAh battery Which comes with a USB to micro USB charging cable and a user manual in 6 languages. It thus Allows other USB to any connector type cables to be connected to it to charge other device with a different connector for Apple devices for Example. It has an iSmart Technology Which Detects automatically the optimal charging current for the Connected Device enabling our devices to charge at it fastest possible speed. It comes with a physical button on pressing Which we can check how much battery charge is left resting on the battery. The maximum output is 2.4 A. Provides is One device can be charged at a time. It shuts itself down once the Connected Device is charged. Once the battery is fully drained RavPower it needs to be connected to a USB power source (eg: a mobile phone charger did came with the phone or tablet with max output 2 A) for charging. Its a good device and I would recommend it People who need a handy lightweight yet powerful battery to charge devices on the go.
