Ok, I will give it a try.Once it (the BMS) sees a full charge, it should calibrate to that.
I don't remember if you have tested this, with only the battery connected. (All other inputs and outputs disconnected)Hi Tim, I got the battery charger this week and have charged the batteries. Unfortunately, the issue remains basically the same, the batteries when physically disconnected from the inverter seem to work ok as soon as I connect them to the inverter they go to "alarm" mode.
At this stage, I think I may have some internal fault in the inverter battery circuit. I have measured the resistance between negative and positive battery terminals in the inverter and I have a high resistance reading (1.58MΩ) but I have no reference to follow to know if this is ok or not.
I have sent an email to Growatt to have some feedback from them, they connected remotely and upgraded the SW they say that all is ok.
So at this point, I am stuck.
White House- Oval OfficeWhere's this "red button"?
I don’t know if you have a backup inverter or a friend with one to borrow. I “feel” like your inverter capacitors are discharged and the batteries aren’t sufficiently charged to take the quick high load. But you charged the batteries so… a known good inverter should expose the inverter problem. It’s worth a shot. I have backup inverters if I go dead.I connect any individual battery or the full battery array to the inverter even with the inverter off they came up to alarm mode immediately
Thanks for your suggestion, unfortunately I don't have any backup inverters that I can useWhite House- Oval Office
I don’t know if you have a backup inverter or a friend with one to borrow. I “feel” like your inverter capacitors are discharged and the batteries aren’t sufficiently charged to take the quick high load. But you charged the batteries so… a known good inverter should expose the inverter problem. It’s worth a shot. I have backup inverters if I go dead.
Hi, thanks for your suggestion, I need to have a look around I may have some 12V lamps lost in my garage.The red button is on the batteries. To turn them off you just flip the switch. To turn them back on, you flip the switch, then press the red button.
I guess you haven't got any DC stuff you can use to put the batteries under some load... I have quite a lot, but 48V DC is not common.
You could use four 12V bulbs (of some power) in series...
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