TUTORIAL: How to Create Your Own DIY Battery Pack! (On the Cheap! - Misc - Lithium Ion) - YouTube
The 2020 Lithium-Ion Battery Guide: The Easy DIY Guide To Building Your Own Battery Packs (Lithium Ion Battery Book): Turner, Anthony: 9781952545078: Amazon.com: Books
How to build a 12v Battery Pack using Li-ion Cells
DIY Lithium Batteries: Beginner's Guide To Building Your Own Battery Pack, Sissney, Grayson H., eBook - Amazon.com