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


  • Gary Cotterill

    Thinking of rebuild for BL07 Li-ion 36V 8.8A H .Can you please give me a costing.Thanks.


  • EBike Marketplace

    @Andrea – Our current pricing can be found here:

    https://ebikemarketplace.com/products/currie-i-zip-e-bike-battery-replacement?variant=16768804552775


  • Andrea Foley

    Looking for rebuild cost on BL07 Li-ion 48V 8.8 AH battery for Raleigh bike. Please send cost to rebuil and process for sending battery to you for rebuild.


  • EBike Marketplace

    @Doug – We can probably rebuild it if it’s similar to other TranzX batteries. We’ll be in touch with further instructions.


  • Doug hathaway

    I have a transz x 24v 10ah bl03 battery. It has been stored for several years and now will not charge. Are you able to repair,and at what cost


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