To calculate the discharge rates of EV batteries, we first need to understand how lithium-ion batteries work and how they are used. Nearly all electric vehicles on the market today feature a ...

Nickel-metal-hydride (NiMH) batteries are made by many manufacturers and have different charge ratings. Also, with repeated use, the maximum charge that NiMH batteries will hold diminishes at ...

Sometimes, your battery loses its power without you knowing. In some cases, people put their gadgets inside safe storage only to discover later that their 100% battery is not full anymore.