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Bosch Smart System (BES3)Does the Bosch PowerTube 750 (smart system) fit a Bosch Smart System (BES3) bike?
Whether the Bosch PowerTube 750 (smart system) fits a Bosch Smart System (BES3) e-bike, and what to confirm on your own frame first.
Yes, with the right mount. The Bosch PowerTube 750 (smart system) is the native pack for a Bosch Smart System (BES3) bike (750 Wh, 36 V), charged through the Bosch smart-system round charge port.
| Battery | Bosch PowerTube 750 (smart system) (750 Wh, 36 V) |
|---|---|
| Native drive system | Bosch Smart System (BES3) |
| Verdict | fits (native pack) |
| Charge port | Bosch smart-system round charge port |
| Will not fit | a different drive system, or a different Bosch/Shimano generation even if the shape matches |
The Bosch PowerTube 750 (smart system) is proprietary to the Bosch Smart System (BES3) drive, so it fits that system and no other. The PowerTube 750 is the large smart-system pack, roughly 4.4 kg, for Performance Line CX BES3 bikes from model year 2022. It will not run in a BES2 bike and its 4A smart-system charger fills it in about six hours.
Confirm the mount and the Bosch smart-system round charge port on your own frame, because packs that look identical across generations do not always interchange.
Sources: Bosch eBike Systems, PowerTube and CompactTube batteries · Clever Cycles, Bosch Standard Charger 4A Smart System · Urban Arrow Service Center, Differences between Bosch eBike System 2 (BES2) and Smart System (BES3) · Qiolor, Bosch e-bike motor compatibility explained