Recent content by Stefaan De Ridder


HUGE range of batteries & accessories at www.batteryhookup.com 5% coupon "POWERWALLS"
  1. S

    LiFe P04wall

    on that third picture I see a cell with ICR 18650 3.7V on it, I think they might be Li-ion and if so, you're testing could be totaly wrong
  2. S

    First pack build - BMS issue

    the original picture is not very clear, but i can not see 2 connections (minus) to the pack, 1 coming from B- on the PCB and 1 from the balance lead (black wire) same goes for the positive side (from B+ on pcb) and 1 from 4th balance lead. I would also try to put the balanceleads on the...
  3. S

    First pack build - BMS issue

    why did you make that connection?
  4. S

    First pack build - BMS issue

    did you connect B- to the B1- cell, I can't see on the photo and also B+ to B4+ ? the balance wires and the extra wire need to go to the pack best regards Stefaan
  5. S

    value of the cell fuse

    thatdatasheet is more the safety sheet, not the actual technical datasheet, with currents and chargerates. I found that, but not much more. some references found (russian) say it's manufacured by Sony. same site stated the 1C and 3C rating. max charging at 2a thanks anyway best regards Stefaan
  6. S

    value of the cell fuse

    more difficult to solder, but a good option if I can't find glass fuses best regards Stefaan
  7. S

    value of the cell fuse

    not fuse?: living on the edge? :-) I think I'm going to fuse, just to be on the save side, until I gain a bit more experience. Ok, I will start googling for 15A fuses or something in that rating. best regards Stefaan
  8. S

    value of the cell fuse

    it's not a 18650, it a GP4105054T1000L, prismatic, but difficult to find spec. there is a post somewhere on the forum. I'm still collecting 18650, slowly getting there. my collection of 18650 is mainly from e-bike batterypacks. sometimes difficult to collect them, but mostly the bms is dead...
  9. S

    value of the cell fuse

    thanks for the reply: for my setup: 1C = 10A, which would be the max continuous estimated current draw per cell. so I may need a fuse of something like 20A per cell, maybe a bit higher. you suggest main fuse to be 1/3 of cell fuse. so maybe cell fuse at 30A- 40A and string at 15A? I think...
  10. S

    value of the cell fuse

    dear forummembers. what is the general value of cell level fuses to use? for typical 14S60P or more, I see glassfuses of about 2 amp, 3 amp. This would be about 3 to 6 times the expected currentdraw, if I'm not too far off. (calculated at 500mA or 1000mA draw per cell) if I have cells that...
  11. S

    Rattling LG Cell?

    Hey, that was my cell. best regards Stefaan
  12. S

    "Fake" cells

    In Belgium, you can find advertisementon E-bike battery service, these services repair/upgrade/recondition e-bike batteries. You bring in a faulty/worn out e-bike battery and they replace the cells with thepossibility to 'upgrade' the overall capacity. I can imagine, that those serviced...
  13. S

    newbie

    here also, and you are not alone, several from Belgium, most of them still collecting cells :-) mvg Stefaan
  14. S

    Opus BT-C3100 v2.2 - Reviving 0 Volt Cells

    sorry, you are right, had arough day at the office, mixed it up. of course: I meant 500mA standard cellphone charger, giving about 70mA per cell. the device i mentionned does not seem to care about 0V. (not in 0V like popped CID, more like below 1v) if you see something like 20% charged, you...
  15. S

    Opus BT-C3100 v2.2 - Reviving 0 Volt Cells

    Hi Wim, I charge the below 1V cell with a DIY powerbank like this...
Top