Part / accessory · Bosch

Bosch CompactTube 400 (the smart system)

verified 2026-10-13 Specs from Bosch eBike Systems batteries page. Also known as: compacttube 400, compact tube 400.

Specs

wh400
capacity ah11.1
voltage36
mountin-frame (CompactTube)
systemBosch smart system
dualbatteryYes
weight kg2
dimensions mm352 x 57 x 75

Fits

  • e-bike battery Bosch smart system CompactTube 400
    Bosch's slimmer smart-system in-frame battery (CompactTube 400, 400 Wh, 352 x 57 x 75 mm).

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Good to know
  • CompactTube is a different, smaller housing from the PowerTube; a frame built for a CompactTube does not take a PowerTube and vice versa.
  • Bosch lists it for horizontal or vertical integration with the same dimensions; confirm the version with your bike maker.
  • Bosch: 'Use only original Bosch batteries that the manufacturer has approved for your eBike' and 'Only charge the battery using original Bosch chargers'; Bosch warns other batteries/chargers can be a fire hazard (Bosch PowerTube 750 operating instructions, as hosted on ManualsLib).

What does the Bosch CompactTube 400 (the smart system) work with?

8 models in the graph.

Informational only. Confirm with the manufacturer before buying or installing. Spotted a mistake? Report it.