TranzX Battery Cell Replacement Service

TranzX is a company that makes parts for a number of e-bike manufacturers, including batteries. When the battery dies though, replacements can be tough to come by. That's why we offer our rebuild service! Send in your battery, we replace all of the cells while re-using your case (so it's guaranteed to fit back in your bike), and send it back to you! Often, we can upgrade the capacity to give you longer ride time as well!

TranzX BL17

Here's the popular TranzX BL17 model battery that's used on iZip E3 Dash, E3 Peak, and E3 Sumo model bikes, along with the Raleigh Tekoa, Route, and Misceo, among others. It fits on the downtube. We can upgrade these from 417 Wh to 504 Wh with our 10.5 Ah rebuild.

Raleigh Sprite Battery

This is the TranzX BL07, a rear rack model, that Raleigh used on some of their electric bikes like the Retroglide, Superbe, and Sprint. We can also upgrade these up to 14 Ah using our rebuild service.


134 comments


  • Eric Strain

    I have a Transx BL07 type/model, 48v 8.8AH(42WH) and it will not hold a charge. I am interested in having it rebuilt, what would this cost? THank you, Eric


  • EBike Marketplace

    @Alex – We will be in touch with our current pricing and lead times.


  • Alexander Daly

    i have a 48v 8.7 ah 418 Wh BL 17 tranzX LI-ion battery 131NR 19/66-3

    how much and how long to re-build this battery and return to me?


  • EBike Marketplace

    @Dave – All of our information can be found on our Battery Intake Form:

    https://ebikemarketplace.com/pages/battery-intake-form


  • Dave Rockey

    I live in Somerset , United Kingdom ; where would I need to send a tranzx BL07 battery for it to be rebuilt ? If it needed to be sent abroad it might work out expensive


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