Configurable battery pack (LiIon, 18650)

thingiverse

This is a customizable power pack currently set up for 18650 LiIon cells (3p6s). Printed with ABS at 0.3mm layer height. A test print with a scaled z-axis, for example, is recommended to verify the tolerances of battery cells and printer settings. Some parts, such as the battery compartment cover, are not fully parameterized and require adaptation for a different number of cells. Components: - [Samsung INR18650-35E](https://www.orbtronic.com/content/samsung-35e-datasheet-inr18650-35e.pdf), [Technical report](http://downloads.cdn.re-in.de/1400000-1499999/001499572-da-01-de-SAMSUNG_LI_ION_AKKU_18650__3500MAH_10A.pdf). - 0.28mm enamelled copper wire as fuses (approximately 13A/cell) - 1mm enamelled copper wire for cross bar - Zip ties, XT60 connector, balancer connector, and other components Battery pack specifications for long cycle life with Samsung INR18650-35E: - Charge current: 6A - Discharge current: 25A - Charging voltage: 4.1V - Discharge voltage: 3V - Energy: Approximately 185Wh @24A discharge current I am charging and discharging this battery using a charger like the "ISDT Smart Charger Q6," so I did not plan to install a BMS board. The box is intentionally made slightly smaller, allowing the lid to be pressed firmly into place by three cable ties or, as shown in one of the pictures, a strap. Version 2018-11-26: Initial release