For DIY enthusiasts in the green energy community, homemade lithium-ion battery packs have long been a holy grail. For everything from home solar energy storage to garage-built electric bicycles, go-karts and full-size EVs, lithium-ion batteries were once one of the most limiting factors for hobbyist and makers.

However, the last few years have seen an impressive upswing in availability of parts, tools and knowledge in the DIY lithium-ion battery pack space. This has led to increasing opportunities for creative DIYers to shuck the bonds of traditional suppliers of expensive Li-ion battery packs and instead develop their own custom batteries for a variety of projects and applications. expand full story