ICs
Controller
+XR, HW: 4209, PCB r2.9
STM32F103VBT6main CPU- Datasheet: stm32f103c8.pdf
+XR battery schema
Close-up of the XR+ Battery pack layout w/ BMS connections. (Thermistors are just evenly placed around the pack between cells.)
All the XR versions.
STM32F103VBT6 main CPU
Close-up of the XR+ Battery pack layout w/ BMS connections. (Thermistors are just evenly placed around the pack between cells.)