BMS van Bosch Powertube incl balans prints en leds @ techniek.piet-van-meel.nl
BMS Bosch Powertube 500 E-Bike Akku in Leipzig - Süd | eBay Kleinanzeigen
Bosch BMS – E-Bike Workshop Munich
Battery Guide - Bosch eBike Systems
Bosch Powerpack BMS repair - YouTube
Bosch Powertube batteries are held together internally by standard J-bend spokes and nipples. No particular use in knowing this, but it's cool :) : r/BikeMechanics