High Current 21700 Battery Box Holder Slot Case for DIY Projects – No Soldering Needed, Brass Contacts, Transparent Cover, Interlocking Design, 6-Pack (1 Slot Each), PC+ABS Material – Bistook
21700 Lithium Battery Pack Part 7 - Designing a 60-cell 21700 Holder and Oversized 3D Printing - YouTube
21700 Battery Holder Bracket 4 x 3 21.3mm Diameter for DIY Battery Pack of 4 | Walmart Canada
Amazon.com: ZRM&E 50pcs 3X Cell 21700 Battery Holder Bracket Cell Safety Shockproof ABS Plastic Brackets 21.2mm Hole Dia for 21700 Lithium Batteries, Black : Tools & Home Improvement
Free STL file 21700 Battery Pack Cap Holder 6s & 4s・3D printing template to download・Cults