Of course, testing and charging these cells is only part of the solution. If you want to safely use lithium-ion batteries in your own home-built devices, there’s a few things you’ll need to ...

Tesla has dubbed its first in-house battery, the 4680. Perhaps the biggest surprise ... could eliminate many shortcomings caused by lithium-ion batteries, but they remain very difficult to produce.

The number might seem like a strange choice, but it maps to the cell size (18 mm in diameter and 65 mm long). The batteries usually use lithium-ion technology. However, lithium isn’t the only ...