Tuesday, June 16, 2015

New battery for my next ebike

I put together another battery for my next Tidalforce bike. This time it's a 10S pack made from a 6S and a 4S pack in series. I made an acrylic outer shell and Gorilla taped it together with an outer wrap of 4" gaffers tape. I need to do the wiring and the end caps next. 


  1. Hello Ambrose,
    I just stumbled across your blog here and I'm impressed, and excited!
    I've had a couple of Tidalforce ebikes in storage for YEARS (original batteries depleted of course), plus I've just moved to San Diego, so it's quite exciting to see that someone out there is still tinkering/upgrading these machines, and reporting on it, so I might be able to get mine back in action!

    To that end, I was wondering if you might be open to putting one of these battery packs together for me, for a fee of course? (If possible, a 48v version appears to be the best/max).

    I read in another post of yours here (although I think it was a few years ago), that you offered to build a 'B Jumper' for a fee. If you're not willing or able to put together the battery pack that I need, would you at least consider supplying me a couple of those 'B Jumper' thingys that I'll need to attempt to do all this myself?

    Failing that, seeing as you appear to be deep in the Tidalforce community (over at Endless-Sphere for example), perhaps you could point me in the direction of someone else (preferably locally) that you know might be able to help me out??

    In any case, thank you for your time Ambrose, and thank you for maintaining this blog!

    1. Hey James, sorry for the very late response. I didn't see your comment until just now!

      The Tidalforce motor/controller won't accept any voltages above about 45V. Anything higher and the motor protects itself and won't work. however, if you have the X motor, then the standard 36V battery which tops out at around 42V fully charged will get you close to if not over 30mph.