For those willing to put some elbow grease into it, there is an almost unlimited supply of 18650 lithium ion batteries around for cheap (or free) just waiting to be put into a battery pack of some ...

At some point, the 3.6 V of a single lithium ion battery just won’t do, and you’ll absolutely want to stack LiIon cells in series. When you need high power, you’ve either got to increase voltage or ...

Mercedes is experimenting with multiple-chemistry battery packs that have more than one type of cell. A new type of micro-converter and hooking up the battery cells in parallel not in series makes ...

All electric vehicles have big battery packs that can hold dozens of kilowatt hours of electricity, which are required to power their powerful traction motors for hundreds of miles. For some EVs, ...