S5 External Battery Charger
This Samsung Galaxy S5 External Battery Charger is compact-lightweight which means you can take this anywhere, just plug your current Micro USB (used to charge your phone) into this unit – pop your battery in and it will instantly charge.
Circuit protection prevents overcharging your battery. It also has a LED light so you know when it’s charging/fully charged.
You can even charge your battery from your car.
5V DC Input 500mA – 1000mA
4.2V DC Output 500mA