I just started using this All-in-One inverter about a week ago. I learned alot, but still having some issue.
battery bank is 24v 200AH battle born lithium
solar panel is 290w peak, Impp 9.05A, Vmpp 32.v, Voc 38.3v, Isc 9.71A
4 of the above solar panels connect in parallel
In California full sun, I am only getting about 10 to 12amp solar input to the All-in-One. Seems low. My previous MPPT charger (EPEVER MPPT 40A), when connect to 12v battery bank (5 of the battle born lithium in parallel), using same 4 solar panels in parallel. i could easily see 30 to 40 amp charging the battery. Why am i only getting 9 -12 amp now ? Doesn't this Growatt has MPPT built-in ? It does not know how maximize voltage to higher amp ?? Or should i connect the solar panels differently ?
Parameter setting:
#1. SBU
#4. SdS. saving powe disable
#5, USE
#6. LFd. auto restart when overload occur, disabled
#7. EFd. restart when over temperature occur, disabled
#10. Number of seris batteries connected. 2. i can't change this. I do have 4 12v batteries. Connect 2 pair of them in series, than parallel.
#12 22.2v
#13. 26.0v. I am not sure what this one does.
#14. C50
#18. bYd
#19. 28.8v
#20. 27.2v
#21. 21.0v
#22. Sbd
Here is the problem, it's an annoying one. Typical output load is about 180watt. (two fridge, computer, router)
At night, when battery voltage drops below 22.2v, utility take over and start provide load and charging battery at same time. This part is great. After a while, when the battery charges to 25.5v, utility stops provide load and charging, and battery take over again. Then after a while, all of sudden, the load stops. The unit stopped sending power to load. Even when the battery is about 25v. This already happen twice tonight. To restore power, i would have to use rocker on-ff switch to turn it off and on. Then the battery would start supply load again. I am monitoring it now, to maybe see the voltage of battery when it happen again. The load is the same, about 180 watt.
Do you know what's going on ?? I appreciate any advise.
frank
battery bank is 24v 200AH battle born lithium
solar panel is 290w peak, Impp 9.05A, Vmpp 32.v, Voc 38.3v, Isc 9.71A
4 of the above solar panels connect in parallel
In California full sun, I am only getting about 10 to 12amp solar input to the All-in-One. Seems low. My previous MPPT charger (EPEVER MPPT 40A), when connect to 12v battery bank (5 of the battle born lithium in parallel), using same 4 solar panels in parallel. i could easily see 30 to 40 amp charging the battery. Why am i only getting 9 -12 amp now ? Doesn't this Growatt has MPPT built-in ? It does not know how maximize voltage to higher amp ?? Or should i connect the solar panels differently ?
Parameter setting:
#1. SBU
#4. SdS. saving powe disable
#5, USE
#6. LFd. auto restart when overload occur, disabled
#7. EFd. restart when over temperature occur, disabled
#10. Number of seris batteries connected. 2. i can't change this. I do have 4 12v batteries. Connect 2 pair of them in series, than parallel.
#12 22.2v
#13. 26.0v. I am not sure what this one does.
#14. C50
#18. bYd
#19. 28.8v
#20. 27.2v
#21. 21.0v
#22. Sbd
Here is the problem, it's an annoying one. Typical output load is about 180watt. (two fridge, computer, router)
At night, when battery voltage drops below 22.2v, utility take over and start provide load and charging battery at same time. This part is great. After a while, when the battery charges to 25.5v, utility stops provide load and charging, and battery take over again. Then after a while, all of sudden, the load stops. The unit stopped sending power to load. Even when the battery is about 25v. This already happen twice tonight. To restore power, i would have to use rocker on-ff switch to turn it off and on. Then the battery would start supply load again. I am monitoring it now, to maybe see the voltage of battery when it happen again. The load is the same, about 180 watt.
Do you know what's going on ?? I appreciate any advise.
frank
Last edited: