Bosch PowerTube 800 battery, horizontal (BBP3880)
What it is
Bosch's 800Wh in-frame battery for the Bosch smart system (the bikes that use the Bosch eBike Flow app). This is the horizontal version, part number BBP3880.
Fits
Bosch smart system bikes whose frame takes the PowerTube 800 in the horizontal holder. The quickest check: the battery in your bike says BBP3880.
| Bike | Years | Notes |
|---|---|---|
| Yeti LTe (Bosch CX / CX-R) | 2026, 2027 | Takes the horizontal PowerTube 800 (BBP3880), this exact battery |
| Trek Rail+ (Gen 5) | 2025 | Trek fits the battery in its own housing. Ask us first |
| Santa Cruz Vala | Current | 800Wh option. Check the label |
Won't fit
- The vertical PowerTube 800 (BBP3881). Horizontal and vertical aren't interchangeable.
- Bikes built for the PowerTube 750, 625 or 500. The new 600/800 batteries use a different holder.
- Older Bosch bikes from before the smart system (Classic+).
Check before you book: the label on your current battery says BBP3880, or "PowerTube 800 horizontal".
Covers, end caps and cables: some bikes need a cover, end cap or cable that's specific to the bike. Tell us your bike when you book and we'll make sure you get the right one, or email us first.

