Many readers will have at some time or another built their own lithium-ion battery ... has with this 48 volt pack. It’s based around an off-the-shelf kit aimed at the e-bike market, but it ...

Chris Doel, an electrical engineer from the UK, used his creativity to turn discarded vapes into a high-capacity battery for an e-bike ... to create a functional 48-volt battery, with 3D printed ...