Reprinted the giant battery pack for my xbox controller using an awesome looking translucent filament. Also used 18650 battery contacts for the case this time. : r/functionalprint
VRUZEND DIY Battery Kit
A Modular System For Building Heavy Duty 18650 Battery Packs | Hackaday
3.6V 3350mAh 1S1P 18650 Cylindrical Li-Ion Battery Pack with options for connectors, housings, contacts or solder tables, now IEC621333 certified, Model BL3500C1865001S1P****** (1INR19/66) | GlobTek
How to Make 18650 Battery Holder at Home : 6 Steps (with Pictures) - Instructables
Assemble Your Own Modular Li-Ion Batteries | Hackaday
Remplacement De La Batterie Li-ion Rechargeable 2600 Mah Battery E Bike Jcb360-11-r Contacts 18650 - Buy Battery Powered Led Uplights Case,Remplacement De La Batterie Li-ion Rechargeable 2600 Mah,Battery Lithium Prismatic Lifepo4 100
Amazon.com: uxcell 20Pairs 18650 Battery Negative to Positive Conversion Spring Contact Nickeling Plate 16.5mmx16mm : Electronics
BU-302: Series and Parallel Battery Configurations - Battery University
Amazon.com: BestTong 18650 Battery Case Holder, 2 Slots 3.7V DIY Battery Storage Box in Parallel or Series Plastic Batteries Case with Clips Pins Contacts for Soldering 2 x 18650 Pack of 2 : Electronics