Easily Make DIY Battery Packs with this Building Kit for 18650 Batteries (Crowdfunding) - CNX Software
TUTORIAL: How to Create Your Own DIY Battery Pack! (On the Cheap! - Misc - Lithium Ion) - YouTube
Amazon.com: Pickle Power 12V RC Battery Pack, 2 Pack 2200mAh NiMH Rechargeable Battery with Bare Leads for RC Airplanes, RC Car, DIY and More : Toys & Games
How to build a Lithium-Ion Battery System for less than $400 per kWh | by Joe O'Connor | Off Grid Solar | Medium
2S 2500mAh 7.4V 35C LiPo Battery T Plug Deans Connector for RC Car Airplane DIY | eBay
How To Build A DIY Electric Bicycle Lithium Battery From 18650 Cells