MK2 E-Bike Battery Pack for 40 Cells and BMS ebike

Hey, After gaining experience with my pack I changed the look and made some structural improvements. There are three chassis designs available. Like the previous version it consists of three printed parts. A part for frame's bottle cage mount, a battery chassis and a chassis lid. See attached picture for the arrangement of the cells. XT90 connectors are used for charge and discharge. XT30 connectors are used for connecting a thermistor. It can be used to monitor the temperature while charging and should be placed central and between the cells. The lid and the chassis can be glued or welded together with a soldering iron at low temperature. Before printing make sure your battery's dimensions are suitable. Use brim with this models and supports where needed. Following configurations are possible - 10S4P for 36V - 13S3P for 48V - 20S2P for 72V Materials you need - 40 cells 18650 Li-Ion Batteries, e.g. INR18650 from NKON; total capacity of ~360Wh - e.g. BMS for 72V eBay - XT90 anti-spark connectors Hobbyking - glue for XT connectors, e.g. epoxy - wiring Dimensions length: ~286mm height ~100mm width: ~76mm Part Status Approved