Haibike Sduro Battery by Yamaha

Posted on February 28 2019

Yamaha Haibike Sduro Battery

We recently got an up close look at a 36V 11.0Ah Yamaha battery for the Haibike Sduro e-bike. It's pretty sleek and slender to blend in well with the frame to give it a slightly more covert look than some of the other bulky batteries out there. But let's take a look inside to see what we're really getting in to.

Haibike Sduro Battery By Yamaha

Here's what the pack looks like out of the case. The bottom cap is secured only by 4 screws and the pack slides smoothly in and out. There are 40 total cells wired up in a 10S 4P configuration. It's long and the cells are hexagonally stacked no more than three high. With current state-of-the-art cells, this pack could be upgraded to 14Ah. The top circuit board is absolutely massive even though the chips are concentrated in two areas. There are metal tabs from each set of parallel cells soldered directly to the board.

Haibike Sduro by Yamaha Battery Management System BMS

Here's a closer look at the BMS with some of the connections. There is lots of silicone glue to cover any potentially exposed metal to keep short circuits to a minimum. The charge connector utilizes the blue and white wires so it's not a simple + and - connection. There's even a little white wire on the discharge port. This makes it difficult to replace or repair if the BMS ever stops working, not to mention the custom size it's cut out in.

6 comments

  • EBike Marketplace: May 14, 2019

    @Mikle – We can rebuild the battery for you as long as the BMS still works.

  • Mikle : May 14, 2019

    I have this problem too. Any can help my

  • EBike Marketplace: May 01, 2019

    @Tony – These BMS boards are very specialized. We do not have them and cannot source them.

  • TONY BLEAKNEY: May 01, 2019

    I need that BMS can I buy one somewhere?
    as I shorted mine out. when I wanted to install a horn on my bike. the battery is out of the case now and I checked all the batteries and they are good. just no power coming out. have a 2017 Haibike Sduro Battery by Yamaha 36v 11.0 ah
    THANK YOU HAVE A GREAT DAY.

  • EBike Marketplace: March 29, 2019

    @Sam – That’s a better question for Yamaha, but we do recommend keeping our batteries around 50% charge when stored for longer than a month.

  • Sam: March 29, 2019

    Can I leave Yamaha e enduro battery on mid charge for 6 months

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