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  1. robdon

    battery charge

    After a ,day and a half, this is as far as I have got, measuring from the red wire, on the BMS ribbon cable 1. 4.1 volt. 2. 4.0 volt 3. 4.0 volt 4. 4.03 volt 5. 4.18 volt 6. 4.16 volt 7. 4.0 volt 8. 4.0 volt 9. 4.0 volt 10. 4.0 volt. I can get them all to 4.1 volt but...
  2. robdon

    battery charge

    ok I will try 2amps, at the moment going fine, should get finished by morning. when I get them to 4.1v each, do I charge the battery ROB
  3. robdon

    battery charge

    I am at this moment charging individual cells with the 5v mobile charger, the one I have charges at 1 amp, I have another that charges at 2 amp, would that be better or stay at 1 amp for safety. taking a long time over an hour for one cell, from 3.8v to 4.0v how long does it normally take say to...
  4. robdon

    battery charge

    thanks for you help Dave, as soon as I get a full day without grand kids etc. I will give it a go , and come back, with results. thanks again ROB
  5. robdon

    battery charge

    I have made up the single cell charger, and tested same with multimeter when I start, will I charge like in the drawing moving from cell to cell as each is brought up to 4.1 volts, or leave positive lead on the red wire, and move along the cells with the black one, also will I be able to test...
  6. robdon

    battery charge

    will I be able to check the voltage on the ribbon cable while it is charging. I should not have to touch 5 or 6 cells because they were at 4.1 volts ROB
  7. robdon

    battery charge

    iv`e cut a usb cable their are four wires + shielding :red, black, white and green, I should think I use red and black and I have some pins to solder on. I will use a 5v usb mains plug will that be ok. ROB
  8. robdon

    battery charge

    and use it on the BMS ribbon cable like when I tested the voltage, and do I bring all the cells to 4.2 volts ROb
  9. robdon

    battery charge

    so with the usb charger is it similar to checking the voltage on the 11 pin ribbon cable, and I could use a usb plug from the mains, also can they be obtained in the UK, I have had a camera from HONG KONG this week, took five weeks to arrive
  10. robdon

    battery charge

    would I have to take the cells out of the battery, to do all this. these Motorola phone charger marked 4.4v 1.1a output are available on EBAY ROB
  11. robdon

    battery charge

    how does the BC168 charger work is it difficult, and would it guarantee the battery worked proper, or could I just be throwing more money away, this is a new batter did not arrive till mid November 2013. I think I may have been done. ROB
  12. robdon

    battery charge

    I may be getting out of my depth, I had not seen a Li-ion battery till a few months ago never mind balance one, although I can solder and willing to try things, if it works in the end, the two bikes I have at the moment have good batteries, this one was to replace the one on a Giant suede, which...
  13. robdon

    battery charge

    What next DAVE, would this battery power a bike and how long, or would it cut out, also it was advertised as 15ah is it. I was just having some suspicions ROB
  14. robdon

    battery charge

    BATTERY BEEN ON CHARGE now for 15 hrs and has not altered 39.3 volts on battery discharge end, charger giving 42.3 volts, at charging end of battery 38.8 volts. I am going to bed now and see what happens next in the morning. ROB
  15. robdon

    battery charge

    I left it on charge yesterday for 9 hours, but unplugged it when I went to bed, put it back on this morning, will give it another 15 hours. see what its like then, is at 39.5 volts at the moment, charger on green. ROB
  16. robdon

    battery charge

    I will leave it on charge for a few hours see what happens, bye the way the battery LED`s are now showing 3 lit , before only 2 ROB
  17. robdon

    battery charge

    I will try that see what happens ,thing is battery stays on green, so its not charging or is it. ROB
  18. robdon

    battery charge

    here are the measurements 1= 3.8v 2=7.6v 3=11.3v 4=15.0v 5=19.1v 6=23.2v 7=27.2v 8=31.1v 9=34.9v 10=39.0v had to take my time as meter was fluctuating ROB
  19. robdon

    battery charge

    I have been measuring on the BMS not the ribbon cable , meter set to DC 200v, I have just changed the fuse although that was ok. will try again ROB
  20. robdon

    battery charge

    tried all combinations cannot get any readings multi meter set to DC 200 v tried negative on black to start then to red , then positive to red then black, I must be doing something wrong ROB