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#121 |
Gone Wild
![]() ![]() Join Date: Mar 2024
Location: ontario/florida
Posts: 241
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![]() IIRC every voltage must be lower than the voltage field above it.
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#122 |
Gone Wild
![]() Join Date: Oct 2012
Location: Southwestern Pa.
Posts: 6,516
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![]() Welp.....I took it out today for a ride as it has warmed up a bit (now 27 degrees) and we have about 6" of snow on the ground. Not the light fluffy stuff.
I was pushing the cart hard to see what it would take\do and as I was coming up a hill, not necessarily a really steep hill, and I had it "floored" the entire way. I was also plowing through untouched 6" of heavy snow. Then the BMS shut down. Looking at the pic below item #3 says "cell over discharge protection is released". As I was at a dead stop I just shut the BMS down and then turned it back on. So, my guess is the UVP had kicked on. I think when I shut it down, the previous log was probably wiped out of data. These Leaf cells will drop below the 2.5V when the pack is getting lower, but when at a rest they may read 3.1. They are not drawn to low when this occurs as I've done this several times over the years. If I posted the right pic, my cell UPV is set at 3.5V. And the recovery is 3.6V. So, I think the BMS was doing what it was instructed to do. So, to prevent this I think I need to set the cell UVP back to the area of say 2.8V and the recovery to the 2.85V. That way the only time I should get a shutdown would be if the pack V is nearing the low end and I'm giving it to much juice. My ZEVA would shut down when the pack go to 50V and I was going up a hill. So, I'll change these settings and I should be good to go. ![]() ![]() ![]() |
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#123 |
WARRANTY VOID
![]() Join Date: Aug 2021
Posts: 3,656
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![]() Yea when you rebooted the BMS that probably bypassed any timed recovery functions. The UV protection should be voltage related for recovery, but may also have a time component too. Would have to check the settings.
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