Bosch PowerPack 725 (smart system): 725 Wh, 36 V, frame or rack mounted. Which e-bikes it fits, the charge port it uses, and the drive systems it will not work with.
Updated 05 September 2026.
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Bosch PowerPack 725 (smart system) (725 Wh, 36 V, BES3 frame/rack): specs and what it fits
What the Bosch PowerPack 725 (smart system) measures, the drive system it belongs to, and the bikes it fits.
| Capacity | 725 Wh |
|---|---|
| Voltage | 36 V |
| Rated capacity | about 20.1 Ah |
| Form | frame or rack mounted |
| Charge port | Bosch smart-system round charge port |
| Fits | Bosch smart system (BES3) bikes using an external PowerPack mount, including dual-battery cargo bikes |
Fits: Bosch smart system (BES3) bikes using an external PowerPack mount, including dual-battery cargo bikes.
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.
It charges through the Bosch smart-system round charge port.
Questions and answers
What is the capacity of the Bosch PowerPack 725 (smart system) (725 Wh, 36 V, BES3 frame/rack)?
725 Wh
What is the voltage of the Bosch PowerPack 725 (smart system) (725 Wh, 36 V, BES3 frame/rack)?
36 V
What is the rated capacity of the Bosch PowerPack 725 (smart system) (725 Wh, 36 V, BES3 frame/rack)?
about 20.1 Ah
What is the form of the Bosch PowerPack 725 (smart system) (725 Wh, 36 V, BES3 frame/rack)?
frame or rack mounted