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  • Post in thread: How do I know my battery is damaged by the cold?

    I am less worried now. Based on the comments by 400bird, I assumed the BMS had acted up a little bit on that cold day and let the battery connected to a constant 10A load for several hours during the weekend. Although is a small load compared to the battery capacity (280Ah), as soon as the...
  • Post in thread: Common Daly BMS problems?

    Hi, Have you solved your problem? I am kind of having the same issue. I have my RV's battery bank set with 8 (4S2P) 280 Ah prismatic cells, and I am using Daly 250A BMS. Things were working fine for about a year now. But, over this weekend, the BMS can't keep the balance within de 20mV and cuts...
  • Post in thread: How do I know my battery is damaged by the cold?

    My concern is that the thermostat sensor was picking up the air temperature but not the cell temperature (although the sensor was taped to one of the cells side wall). Do you think I should keep applying the load on the battery and see if I get most of the amperage? The balance start voltage...
  • Post in thread: How do I know my battery is damaged by the cold?

    Hello. I searched the Forum but couldn't find an answer to how could I know if cells were damaged by the cold temperature. Here's what happened: I have a 12V 560Ah (8 x 280Ah EVE cells) battery bank in my RV. The BMS I am using is a Daly 250A. The batteries are in an box with a small (60W) fan...
  • Post in thread: How do I know my battery is damaged by the cold?

    My understanding from the app is that the "imbalance open difference" is the threshold to start balancing. The parameter I believe is the one that makes BMS to open is the "diff volt protect" and that is set to 0.25V. This is the one that prevented me from fully charging the battery after the...
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