If you go to Settings -> Battery on your iPhone, you can see a lot of stats about the performance and health of your battery. This includes a charge graph that plots the battery percentage of the ...

However, there is a lack of safe and reliable battery technologies to support the push toward ...

If not, it can fall off when hitting a bump. What will you do if your cell phone is out of battery when you stay in a place without an electricity source? Once you bring XCSOURCE Rechargeable LED Work ...