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Brompton Electric - Greenway Battery - for C, P, G and T Line Electric

Brompton Electric - Greenway 345 Wh Battery - for C, P, G andT Line Electric Brompton bicycles

For use with either the G line bag or the P / C line bags with the adapter frame 

Brompton Electric - Greenway 345 Wh Battery - for C, P, T and G Line Electric

This is a replacement Greenway batter as introduced on the G line Brompton Electricand now rolled out to the Brompton e-Motiq electric range of C Line, P Line and T Line 16 inch models. 

It is compatible with both the Mk 1 P Line and C line electric Brompton Bicycle (the ones with the motor in the front wheel) only when used with the new adapter frame (the bit which fits inside the bag and connects to the electric front carrier block) 

This battery has a capacity of 345 Wh, Brompton say you should be able to ride for 30 - 60 miles (40 - 70 km)

Charges in 5 hours (charger not included) 

Maybe you are looking for a Brompton Electric spare battery so you can have one ready charged when you arrive at work or a replacement if you've misplaced or broken the one that came with your bike

The display on the top shows the current charge level (indicated by 1-5 blue dots)

The power level can be controlled by a button on the top (level 1-3 or off) - or by the Brompton Electric App

The lights can be adjusted by a button on the top (on, off or auto sensing)

Weight: 2.6kg / 5lb 2oz

Battery Compatibility

This is a replacement battery originally for Brompton Electric folding bikes with 20 inch wheels:

  • Brompton Electric G line

It is also for the Brompton e-Motiq electric folding bikes introduced in 2026 (with the motor in the rear wheel)

  • Brompton e-Motiq C Line
  • Brompton e-Motiq P Line
  • Brompton e-Motiq T Line 
It is also compatible with the Brompton Electric folding bikes with 16 inch wheels, only if used with an adapter frame
  • Brompton Electric C Line (the new name in 2022)
  • Brompton Electric P Line (introduced late 2022)

This battery is NOT compatible with Brompton Electric folding bikes with 16 inch wheels with the original BMZ frame 

Battery / Frame compatibility

Compatible with the following frames:
  • Greenway small frame
  • Greenway large frame
  • Adapter small frame
  • Adapter large frame
Not compatible with the following frames:
  • BMZ small frame
  • BMZ large frame

We made this short video on the Brompton Electric City (small) bag which includes details on how to remove / install the battery

Brompton 2020 Q part code: Q103828
Brompton Q part code: GE-FBATT345