Bosch PowerTube 500 (eBike System 2): 500 Wh, 36 V, in-tube. 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 PowerTube 500 (eBike System 2) (500 Wh, 36 V, BES2): specs and what it fits
What the Bosch PowerTube 500 (eBike System 2) measures, the drive system it belongs to, and the bikes it fits.
| Capacity | 500 Wh |
|---|---|
| Voltage | 36 V |
| Rated capacity | 13.4 Ah |
| Form | in-tube |
| Charge port | Bosch eBike System 2 oval charge port |
| Fits | Bosch eBike System 2 frames built for the 400/500 in-tube size |
Fits: Bosch eBike System 2 frames built for the 400/500 in-tube size.
The BES2 PowerTube 500 shares the smaller in-tube envelope with the 400, so a 400 and 500 can swap in the same frame. It uses the BES2 oval port and will not fit a 625 slot or a smart-system bike.
It charges through the Bosch eBike System 2 oval charge port.
Questions and answers
What is the capacity of the Bosch PowerTube 500 (eBike System 2) (500 Wh, 36 V, BES2)?
500 Wh
What is the voltage of the Bosch PowerTube 500 (eBike System 2) (500 Wh, 36 V, BES2)?
36 V
What is the rated capacity of the Bosch PowerTube 500 (eBike System 2) (500 Wh, 36 V, BES2)?
13.4 Ah
What is the form of the Bosch PowerTube 500 (eBike System 2) (500 Wh, 36 V, BES2)?
in-tube