Solis 5k Hybrid Inverter - Low Charge/Discharge Rate

Fred7631

Hi all, been a minute since I was last here. Has anyone had issues with their Solis Hybrid not charging/discharging at the full rate like it used to?

I'm not sure exactly when this happened but the max I see discharge is around 3.5kw and max charge is around 3.8kw. This is right at the beginning and throughout a charge/discharge so it's not like it starts high and then throttles. I did note while looking at the screen that the charge/discharge rate did flick between 2.5-3.5k even though the load was consistent. It never did this so something clearly wrong somewhere. I have power cycled everything including the BMS.

It's hooked up to a couple of packs of 16s EVE with Seplos BMS. Controlled and monitored by HA.

I'm thinking it might be a faulty inverter (or BMS?) but wanted to run it by you first.

...Ghost...

My own system is newly setup Solis 5kW with Seplos battery and I have observed it charging and discharging at 5kW as recently as 2 days ago. I have the V3 BMS. I suppose to rule out a faulty BMS, you could connect 1 battery at a time and see if that improves your chg/dischg rates.

I do have an inverter issue where the datalogger is not communicating with the inverter. It's only in since March. 2 dataloggers have been tried. I'm told I need a new inverter (warranty covered). Disconnecting it from the grid in settings accidentally and then reconnecting seems to have caused the issue, but there's no explanation as to why. Mad stuff.

Fred7631

Yeah, it's a bit of a pain to disconnect things from the way it's setup and the location but might be the only way. I'm suspecting inverter to be honest.

graememk

The information screens in the solis will show you what the Max charge current the BMS is sending to the inverter ( and discharge)

Fred7631

Thanks. Forgot about that menu. Looks all ok. I'll move to each battery individually to see if any difference.