May 10, 20224 yr I have a 5kwh Axpert inverter (V 02.66 firmware flashed a while ago) teamed up with a Meritsun 50v 100ah LIFEPO4 battery. This morning I found the Inverter dead with the battery terminals at 12 volt. We did have loadshed last night. The LED diode display 4 lights indicating 75% + charge, but the LCD display panel for interrogating the battery conditions was dead. I found the internal battery voltage is at 48volt when I opened the cover. The battery consists of 15 cells and the factory recommends "cycle charge 53.5-54 v and float 51.5-52.5" MY URGENT QUESTION Will it be safe to simply bypass the BMS and connect directly to the Axpert inverter with suitable settings. What will be the correct settings? We have imminent loadshed. Help please.
May 10, 20224 yr Author On 2021/06/30 at 5:29 AM, Coulomb said: What brand is your LFP battery? If not a well-known brand, is it 15S or 16S? On 2021/06/29 at 10:51 AM, Shadders said: A comment on this issue as a whole is that the King model, even with the updates and correctly wired panels, has still can have problems in certain cases but the changes made will improve matters. If you search for dip and freeze problems there are several posts that explore this in detail. My problem was solved when I selected "USER" for battery and applied some settings I gleaned from advise from the factory
June 3, 20242 yr Hello I have meritsun 48DC 100ah battery coupled with LXP Tek 5kw.It just went offline and no battery communication.Any possible solution please
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