Liz

Thank you

Dear Coulomb. So we have added 3 more panels and now have 12. The 4000 W max voltage for panels (on inverter, attached), is that total before or after MPPT changes 130v back to 48v? We have 3x300w panels connected in series total of 12. Are we on 1200w now or 3600w (close to max)?

Thank you, will try that.

Dear Coulomb. So the new inverter is working well, except we now seem to only get the batteries to 48V which quickly declines again to 47 before it has to go to uti (attached is pic after while day on solar without pool). Even when on uti it only charges for a short period to 48V and then back to batteries. This happens with or without pool. But I also understand the light intensity in SA is currently not high, however, the short charging on uti is baffling. The new inverter also has settings 32-39 extra and I am not sure what optimal is 🤦🏼‍♀️ so have left on default. The panels have been reconnected to 3x3 strings. Any idea what setting is wrong? Thank you 🙏

Yes thank you. Reconfigured to 3x3 strings.

See images, and also follow Coulomb"s page on "Do I have a clone" Bought Inverter from same place that ecxhanged with no prob....they were awesome

Dear Jaco. It seems we had a clone inverter which is okay for lead acid batteries but not for lithium. We got inverter exchanged and seems to run perfectly now

Dear Coulomb, thanks to your advice and prompts. The supplier agreed to swop the inverter for a genuine model. So far so good! May bug you for settings some time 😉 Thanks again 🙏

Thanks for advice 👍

Sorry to bug again. In your opinion, if we had an original and with our set-up, it would run perfectly and no glitches with pool? Or would you recommend another inverter? Advice much appreciated again.

Thank you so much! All your feedback and advice is highly appreciated!

We have two of these: 48V, 100 amp, 4.8 kwh Previously we had 8X100 amp lead acid and then system run perfectly, just the batteries did last through the night. Thank you for your assistance

Hi Coulomb Here is photo of the sticker as well as the firmware. I read the clone forum, but we are told ours is a custom build unit.

Hi Coulomb We are very newbies and wonder if you could assist (all your posts show a magnitude of knowledge!). We have the following set-up: 4 string of 2@300W panels Axpert 5 kVA inverter 2 x Huawei lithium batteries. The problems we are having is following: · Panels seem to be picked up during early (South African time) low intensity light by inverter. When intensity increases, e.g. 09h30, the panels are switched off and system runs on batteries (thus no charging). · Pool is scheduled to start at 11h00 which then causes system to trip and bypass to UTI. This eventually switches to panels, where input is ~1.6 kV and output is ~1.3 kV, so pool runs solely from solar which also charges batteries. · When pool goes off at 14h00, system immediately goes to batteries only, without using any more solar power for charging. · When we get home, system runs on batteries registering about 49V, and thereafter quickly goes to UTI. This continues rest of evening, cycling between UTI and batteries · Currently system registers load between 400-500 W when pool is not running. · Biggest issue is it seems the system is not charging the batteries from solar, or does not recognize solar during day unless a heavy load (e.g. pool) kicks in. So instead of running off grid, we are running mostly one grid. Our current program settings are as follows: 01 Sbu 02 40A 03 APL 04 SdS 05 USE 06 Lrd 07 Trd 09 50Hz 11 40A 12 48V 13 51V 16 SNU 18 bOF 19 rEP 20 LON 22 AON 23 bYE 25 FdS 26 53.5V 27 53.5V 28 SNG 30 OnE 31 SbE Your advice would be highly appreciated!

Thank you!