TranzX Battery Cell Replacement Service

Posted on October 18 2018

Raleigh TranzX BL07 Battery

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 to 10.5 Ah using our rebuild service.


  • EBike Marketplace: August 10, 2020

    @j wood – We’ll be in touch with our current options:

  • j wood: August 10, 2020

    I too have a tranzXbsttery powered bike the rear pullout handle version it has also died . These seem very expensive to replace. What is an estimate for a cell replacement job. just appreciate and approximate estimate as getting on that site of yours for price is difficult! I just want to know if it’s worth doing or I have to write off a £1300 bike

  • EBike Marketplace: August 06, 2020

    @Peter – The easiest check at home is to measure the voltage of the battery with a volt meter.

  • Peter Smith: August 06, 2020

    We have TranzX Battery BL07
    Product Model:305166
    We have put it on charge after a a couple of years of no use and we have no lights to confirm charging and is there a way of checking? Does this mean it wont/ or can not charge. To replace is high so what is the cost of a rebuild, and the time scale.
    Thanks Pete

  • EBike Marketplace: July 29, 2020

    @John – We have some used cases we can salvage a lock and key from, but we don’t have spare keys.

  • John Rivers: July 29, 2020

    I have a Raleigh Bike with a BL07 battery and I lost the key. Can you get me a replacement key?



  • EBike Marketplace: July 15, 2020

    @David – Our current pricing can be found here:

  • David Rhodes: July 15, 2020

    How much would it cost me for you to recell my
    TranzXBL07 battery which I have had for 2 years 6months ?

  • EBike Marketplace: July 14, 2020

    @Barry – We’ll be in touch with some information.

  • EBike Marketplace: July 14, 2020

    @Andrew – We’ll be in touch with our current pricing.

  • barry toomer: July 14, 2020

    i have a tranzx pst bl23 36v8.8ah can you replace the cells and do you sell this battery many thanks barry

  • Andrew Taylor: July 14, 2020

    Hi I have a Tranzx Pst 36v battery 8.8ah. What is the process for you to replace the cells in the battery?

    How much will it cost


  • EBike Marketplace: July 10, 2020

    @Henryk – We’d be happy to rebuild and upgrade your battery for you. We’ll be in touch with more info!

  • Henryk: July 10, 2020

    Hi i have battery Tranzx pst 36v 8.8 ah 32 cells inside could you replaced me this for 36 v cells but 10 or more ah ? and how much does it cost and how long ill be waiting for ready , kind regards

  • EBike Marketplace: June 29, 2020

    @Andrew – We’d be happy to rebuild and upgrade your battery for you. We’ll probably have to replace all the cells.

  • Andrew: June 29, 2020

    I have Raleigh ebike with 48V TranzX battery.
    It will not charge, I left it for winter in the garage and it is not working, it was very seldom used, about 50 times recharged and discharged. The bike is like new, can you restart the battery for me?

  • EBike Marketplace: June 22, 2020

    @Raza – Our current pricing can be found here:

  • Raza Hussain: June 22, 2020

    Hey I have a Tranz X BL07 36V 8.8ah battery which I think may not be working anymore and I am not too sure how I can check this. I may need a new battery or even a rebuild? How much would this cost?

  • EBike Marketplace: June 18, 2020

    @Martin – We are not current rebuilding BL-19 model batteries, but we may in the future.

  • Martin Creasey: June 18, 2020

    My TranzX BL19 battery on my Raleigh Strada has been unreliable and yesterday packed up completely I’m told a replacement will cost £495. Can you repair and how much. Do you guarantee the work?

Leave a comment

All blog comments are checked prior to publishing

Recent Posts