diy solar

diy solar

Recent content by kuranaga

  1. K

    High Voltage (HV) battery from 4x 16s(48V) in series?

    eg https://www.aliexpress.com/item/1005004154366108.html
  2. K

    High Voltage (HV) battery from 4x 16s(48V) in series?

    many of them can be chained e.g. https://www.aliexpress.com/item/1005004583259577.html I saw more. just search aliexpress
  3. K

    100 kWh parallel bank

    send me these 10kwh packs I pay you 100€ each
  4. K

    High Voltage (HV) battery from 4x 16s(48V) in series?

    some BMS can be daisy chained to get as many cells as you want
  5. K

    JK BMS pack not working with another pack with JBD

    you seem to not understand... the BMS that does not discharge does NOT go into any cutoff. No errors logged (cutoff would be logged), discharge is shown as ON but MOS gets not polarized - 0.63V drop over P- and B- !
  6. K

    JK BMS pack not working with another pack with JBD

    If you read my post correctly, it was saying "EXAMPLE picture, NOT mine) - to demonstrate how the screen looks like. IN my case, this morning the problem happened again and the two BMS apps show: https://postimg.cc/gallery/BJ5sYdB Now it happened the other way around! JBD BMS did not...
  7. K

    JK BMS pack not working with another pack with JBD

    Now again same situation, but banks behaving swapped! It is night time now, so nothing comes in into the packs: JBD bank stopped to discharge (current 0A), bat voltage hoovering at around 26.9V, BMS shows "charge ON discharge ON" JK bank discharging, battery voltage at around 26.4V...
  8. K

    JK BMS pack not working with another pack with JBD

    Ah and then I pressed the emergency mode knob to ON and it started discharging (and apparently charging the JBD pack at 2kW, sucks). Really no errors logged, is the BMS faulty?
  9. K

    JK BMS pack not working with another pack with JBD

    Hi I have a strange problem: I have 2 DIY packs, both 280ah 24V. One uses JBD BMS (xiaoxiang app) and the other one JK BMS B2A8S20P. The JBD pack is older it was working like 6 months here and I added the JK pack 2 days ago. Both go onto same 24V busbar. So far all looked good, however this...
  10. K

    How much safer is 24v vs 48v ?

    telephone wire nearly shocked me to death, be careful. maybe they were out of spec, idk, but definitively very dangerous
  11. K

    White smut growing on 310ah CATL cells.

    could be whale sperm...
  12. K

    Review of Cerrnss LiFePo4 48V100ah battery modules

    buying on Alibaba you act like an enterpreneur, no like a consumer. They have no consumer standards
  13. K

    DIY Busbar

    best would be laser welding these terminals, but machine is too expensive for diy. Maybe better consider buying welded packs
  14. K

    DIY Busbar

    I ordered battery with busbars and received only busbars, no battery
  15. K

    DIY Busbar

    what about using CRC 06046 ?
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