A2B Kuo, Kuo+, Fast4ward Smart Battery

Do you have an A2B Kuo, Kuo+, Fast4ward or other model that uses this e-bike smart battery? We can service and rebuild it for you if it's not giving you the range it originally did. These batteries pack in 28 cells in a 7S 4P configuration allowing us to upgrade it up to 24V 12Ah, giving you 30% more range than the original!

A2B Kuo Plus Fast4ward Smart Battery

Just fill out our Battery Intake Form and send us your battery and charger. We'll contact you when we receive it and have your wheel running again soon!


30 comments


  • Larus

    Hi Do you have this battery
    e-bike smart battery li-ion 24v 9000mah/216wh


  • William Fink

    I have a E-bike Smart Battery (Li-ion 24v 9000mAh/216Wh) that will not take a charge. What is the cost of a new one or rebuilding the one that I have?


  • EBike Marketplace

    @Michele – We’d be happy to rebuild and upgrade your battery for you:

    https://ebikemarketplace.com/products/a2b-li-ion-electric-bike-batteries?variant=39450299589


  • MICHELE CHURCHILL

    What is the price for a rebuild?


  • EBike Marketplace

    @Steven – Our current pricing can be found here:

    https://ebikemarketplace.com/products/a2b-li-ion-electric-bike-batteries?variant=39450299589


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