Many readers will have at some time or another built their own lithium-ion battery packs ... as [limpkin] has with this 48 volt pack. It’s based around an off-the-shelf kit aimed at the e ...

If so we should rejoice, because it’s likely to push down the prices of 48 volt lithium-ion packs.

It’s not a project for most people, but watching someone ride up to 20 miles, and up to 30 mph, on tossed-out vape batteries ...