Search results

  1. R

    Swytch Kit - no communication, nobody cares

    Yes, it obviously works for your circumstances (light weight required) but its lightweight because the battery (and therefore range) is small. I don't like the way they've marketed it as a remarkable way to transform a 'normal' bike, it is just a hub kit with a small battery. As far as I can see...
  2. R

    Display problem.

    No worries. The 500c is fine with the 52v, my last build was a 52v 20ah battery with the BBSHD and no problem at all. Now you mention it I do seem to remember reading somewhere that the 500C had problems with 52v but I had one anyway spare, so stuck it on with no issues. Maybe there's problems...
  3. R

    Display problem.

    I've had a bit of experience with both the 850c and the DPC18 with my custom builds. Both are susceptible to water ingress/damp problems. Has it got wet lately (or even damp in a shed or whatever?). If so, I would start with ensuring all the contacts are clean and no signs of corrosion. However...
  4. R

    Can this battery be revived?

    If it’s saved I’ll be using with a BBSHD with the standard inbuilt controller
  5. R

    Can this battery be revived?

    Everything has been stripped off the last 4 battery cells all show zero volts, measured at the cells themselves. Thanks
  6. R

    Can this battery be revived?

    I’m near Reading Neal. I must admit your depth and clarity in your explanations certainly inspire me to stick with it! I’m pretty much ready to give up on it and then you come along with an explanation and it sounds completely do-able, so thank you again for your time! In terms of replacement...
  7. R

    Can this battery be revived?

    Hi there, Yes a broken wire was certainly a possibility but I’ve actually taken a reading directly from the last cell group as well and that is also showing zero volts. For some reason the last cell group has drained down to zero and nothing I’ve done so far has been able to put any kind of...
  8. R

    Can this battery be revived?

    How easy? I guess I'd need to cut away the dead cells, and then solder up to a new BMS? My soldering skills aren't great! And if I removed the duff cell (which consists of 4 batteries), what would I be left with a 48v/10ah battery?
  9. R

    Can this battery be revived?

    Yes, pins are outputting 5v. Had it on charge for a couple of hours this morning with the 5v charger but this time directly on the cell group rather than the Jst connection. Still not showing anything, so I think I'm going to give up! If there's anyone in the Reading/West Berkshire area who...
  10. R

    Can this battery be revived?

    Thanks Matthew, Yes, I have been monitoring and as you say it’s just to get a charge into the first bank of cells.
  11. R

    Can this battery be revived?

    If you’re going to make snide comments at least read the thread properly
  12. R

    Can this battery be revived?

    I’ll try and get a pick today of the voltages at the various points
  13. R

    Can this battery be revived?

    As Neal advised above, 5v phone charger, put through the 14th (positive) and 13th (negative) pins of the jst connector which normally plugs into the BMS
  14. R

    Can this battery be revived?

    Mocked up a charger and put a charge through the pack, still nothing registering after having the charger on for nearly 2 hours. I would expect to see at least some voltage in the cells after this amount of time surely? Beginning to think it might be duff cells after all. I charged via the jst...
  15. R

    Can this battery be revived?

    Thanks Neal, your explanation certainly makes sense and I will give it a try. Just need to find an old charger now!
  16. R

    Can this battery be revived?

    Yeah, I agreee, it's that B14 point that is the issue, I feel like if I could get a voltage through that point it would solve the issue but I can't work out why the wire/first group of cells isn't showing a charge?
  17. R

    Can this battery be revived?

    Hi all, Sorry for the delay, just been out this morning with the multimeter again. Pack in total (at first and last cell) is showing 56v . I then measured each point on the plug in point, points 1 to 13 are showing 4.1volts on every point from 1 to 13. Point 14 is still showing 0v. So 13 x 4.1 =...
  18. R

    Can this battery be revived?

    Thank you for the comprehensive reply, especially straight after work, much appreciated. I will take a look again today and write down the actual voltages and take it from there. Good to know that all may not be lost. I did unplug the BMS and plug back in and that has not made any difference...
  19. R

    Can this battery be revived?

    Yes, that looks like the same set up as mine and using a meter on B14 as it is on that diagram, shows zero volts. I'm going to recheck all the wiring tomorrow but certainly couldn't see anything obvious today.
  20. R

    Can this battery be revived?

    I didn't have it switched on, but then that wouldn't make any difference would it as I measured it at the battery? I'm out at the moment, so can't check. But if everything is all OK cells wise, why would it not take a charge and it is still outputting 30 something volts at the battery connection...