E-bike batteries are, for the most part, a collection of 18650 batteries, packaged together and welded in series and parallel, attached to a battery management system (BMS). A "dead" e-bike battery ...

A popular choice it to salvage ubiquitous 18650 ... but in this case a much more radical route was taken. A huge PCB was designed with sockets for all hundred cells, connected in parallel through ...

In this case, [GreatScott!] wondered if it would be cheaper to make or buy a lithium-ion battery ... 18650 cells in series but decided to double the capacity by connecting another thirteen in ...