January 23, 20242 yr Hi all, so i took my Greenrich WM5000 for a firmware upgrade, because i was getting F56 errors - updated successfully thought that would be it.... installed battery and the inveter beeps but no faults on the app or inverter, but something ain't happy. Now the weird part... when battery is connected to Lithium under settings... BMS reports 95% SOC, voltage at 45v and beeps erratically and F56 error, when battery is on AGM is reporting a steady increase in SOC like 1% an hour (from 0%) and constant voltage of 49.5v and no error Could it be that my battery is vrek, or severly drained and the BMS is just crapping itself. Can anyone advise me on the correct settings for a 51.2v battery? How to balance or get the battery fully charged if that. Battery was working 100% always charged to 85% as i didnt want the battery to stay at 100% for extended Edited January 23, 20242 yr by NadaCT
January 24, 20242 yr 15 hours ago, NadaCT said: 85% as i didnt want the battery to stay at 100% for extended That is your problem. The BMS requires the battery to be charged to 100% regularly, otherwise it will drift and cause issues like you are experiencing. Some manufacturers will void the warranty if this is not done (likewise if operated without comms or on "AGM"). Charge it to 100% on Li.
January 24, 20242 yr Author 1 minute ago, TheMac said: @NadaCT As a matter of interest; can you show your current settings? I have since changed it as per P1000 recommendations... and it seems that everything is "normalized" Voltage is up charge is holding - so far And set to charge 100% and I'll schedule it to discharge to keep cells happy.
January 24, 20242 yr Author 1 hour ago, P1000 said: That is your problem. The BMS requires the battery to be charged to 100% regularly, otherwise it will drift and cause issues like you are experiencing. Some manufacturers will void the warranty if this is not done (likewise if operated without comms or on "AGM"). Charge it to 100% on Li. Thanks for the advise...it seems to have sorted the issue. Will send a log later today once everything is normalized
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