August 20Aug 20 Good day Looking for some advice. I have a sunsynk 8kw inverter with 2 x Revov R100 batteries and 16 x 460w solar panels.I don't get more than 1.6kw charge from solar. But if I use any appliances, the solar redirects to load and charge stays the same. Battery charge and discharge is set at 130A.I don't have Eskom power. Totally off grid. Can someone please help with my settings.
August 20Aug 20 1 hour ago, Rockstar22114 said:Good dayLooking for some advice.I have a sunsynk 8kw inverter with 2 x Revov R100 batteries and 16 x 460w solar panels.I don't get more than 1.6kw charge from solar. But if I use any appliances, the solar redirects to load and charge stays the same.Battery charge and discharge is set at 130A.I don't have Eskom power. Totally off grid.Can someone please help with my settings.Hello and welcome to Powerforum.Your 8K SS is capable of charging at 190A, and the R100s should be capable of accepting 100A each, so 200A when in parallel. The SS is compatible with the Revov's BMS using CANBus protocol 0. You should be charging at well over 7Kw with that array on a sunny day (depending of course on your loads, orientation and azimuth of panels etc.).Check your CANBus comms cable (Inverter to master battery) and master to slave battery link. If you don't spot any issues, please share your LiBMS screen, as well as battery setup screens? Edited August 20Aug 20 by Yellow Measure
August 20Aug 20 Author Hi, and thanks for the response.I've attached pics.My issue is more that my batteries don't charge at full solar capacity. If I put 5kw on the load side the solar will direct power there and still charge the batteries at around 1.5 kw/30A
August 21Aug 21 First things first .....Tick Signal ISLAND MODETick BMS_Err_StopUntick ActivateShow Pic of system mode, System 1 and System 2
August 21Aug 21 From the LiBMS screen, I can see that you have good battery comms, also that the BMS is limiting charge and discharge to 160A, for whatever reason (it may be an earlier revision of the R100 that had this limitation). Interestingly enough, I cannot get a specsheet or manual from official Revov sources, but I Iocated a Revov R100 manual that states that 30A is the recommended charge rate. https://www.manualslib.com/manual/2888737/Revov-R100.html?page=1#manual Was the LiBMS shot taken during the day, full sunlight, or at night? Can you take a shot during the day when it starts charging from PV? Also, do you have an official manual / specsheet for your Revov batteries that you can share?On the first battery screen, I see that you have set the battery to 200Ah, that is correct for the two R100s in parallel. Why did you choose 130A for charge and discharge, and not the combined maximum continuous charge amps and maximum continuous discharge amps of the two batteries in parallel? Does your revision of the R100s only allow 65A charge and discharge rates? It effectively limits your 8kw inverter to deliver only a little over 6kw when drawing from the battery at night. Is that how you want it? On the 2nd battery screen, I see that you are limiting Generator (Aux port) to charge at a maximum of 40A, and Grid charge to a maximum of 130A, yet neither are ticked to allow charge. I guess that to do not wish to charge batteries from grid or genny at all?Do you have a genny connected to the Aux? What firmware revision level are you running? Is it current? Can you provide a pic of the settings screen where this is displayed?Can you also provide a screenshot of the Battery Shutdown screen?And lastly, may be a silly question, but I have to ask it: how are your PV strings configured? 2 strings with the panels in series?
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