Yes: the Bosch PowerPack 725 (smart system) (725 Wh, 36 V) is the native pack for a Bosch Smart System (BES3) bike. The mount and charge port to confirm, and the systems it will not fit.
Updated 05 September 2026.
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Bosch Smart System (BES3)Does the Bosch PowerPack 725 (smart system) fit a Bosch Smart System (BES3) bike?
Whether the Bosch PowerPack 725 (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 PowerPack 725 (smart system) is the native pack for a Bosch Smart System (BES3) bike (725 Wh, 36 V), charged through the Bosch smart-system round charge port.
| Battery | Bosch PowerPack 725 (smart system) (725 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 PowerPack 725 (smart system) is proprietary to the Bosch Smart System (BES3) drive, so it fits that system and no other. The PowerPack 725 is the large external smart-system pack, common on Bosch smart-system cargo and touring bikes and in dual-battery pairs. It uses the smart-system round port and does not fit a BES2 bike.
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.
Questions and answers
Does the Bosch PowerPack 725 (smart system) fit a Bosch Smart System (BES3) bike?
Yes, with the right mount. The Bosch PowerPack 725 (smart system) is the native pack for a Bosch Smart System (BES3) bike (725 Wh, 36 V), charged through the Bosch smart-system round charge port.