FoxESS Community - Owners & Installers Forum

Thanks for your reply Dave. I have a Solis 6kw hybrid inverter which I assumed was getting the SOH value from the FOX BMS. I wonder if it's somehow generating this SOH figure from other BMS parameters or if it's just 'guessing' based on either the number of cycles, total charge delivered since insta...

Hi All, Had my bank of five LV5200's for almost a year now and apart from a few minor issues (see my other posts here) all has been really good. Throughout this time, the SOH has always been reported as 100%, but yesterday I noticed this has dropped to 99%; the capacity of my bank has now dropped by...

Hi Leiomerus, Your LED symptoms seem to match mine, certainly looks like a firmware mismatch between batteries. My 5th battery would show just one LED when the rest showed 4 or 5, then would suddenly jump to all LEDs on. They would remain on whilst discharging when the other battery LEDs would go of...

Hi All, I have the 6KW version of the OP's Solis inverter and 5 x LV5200 batteries. When I had 3, then 4 batteries I always used to get the High Volt alarm when they reached 100% SOC. When I added the 5th battery I had issues where the battery did not appear to be charging and was showing very odd L...

Hi Ian, I haven't got another battery yet, so am still on 4. How old are your batteries? The data sheet from November 2020 shows max 4 batteries and the data sheet showing max 12 is dated March 2022. My batteries are quite new - after March 2022 so I think I'll be OK. If yours are older then try con...

Hi Mark, Hope you get your issues resolved soon. Following my last post, I got a very short reply from Fox in response to my question about max number of LV5200 in parallel. They conform 12 not 4, but no detail on when this changed, e.g. from serial number X onwards. Older data sheets said 4, latest...

To close this question... Having chased my ticket with Fox support, they have confirmed that 12 x LV5200 batteries can be connected in parallel. They didn't, however, confirm if it was only from a certain serial number onwards or with a specific firmware version that 12 instead of 4 was supported. C...

I had the same issue with my LV5200 'bank'. Like other responses here, I made an insulated enclosure around my batteries and fixed reptile tank heating pads to the side of each battery (I found 28w pads that were the the right size to cover the side of the battery). These are controlled by an Inkbir...

Hi, I have the same setup as you, Solis 6K hybrid, and LV5200 batteries, except I have four of them instead of the two you have. The LEDs on the batteries should all go down roughly the same (not exactly). Can you confirm that the data cable is in place between the master battery LinkPort1 and the s...

Update... Found two versions of the spec sheet: V2.0, dated 04/11/20 shows 20.48kwh (i.e. 4 batteries) max V3.2, dated 22/03/23 shows 61.44kwh (i.e. 12 batteries) max My batteries are from 2022 & 2023 and the manual shows the dip switch settings for 12 batteries, so I guess (hope) I can add more...

Hi,

Currently have 4 x LV5200 batteries giving me a 20.48kwh capacity. Can I add more? The spec sheet shows 20.48 as the max expansion, but the user manual indicates (and the dip switches cater for) expansion up to 12 batteries. Which is correct?

Cheers, Jerry

Been a while, but just to conclude this thread... It was the 'control parameters' 'charge limitation' and 'discharge limitation' on the Solis inverter that were imposing the 50A limit. I was unable to set these myself, but I've eventually managed to get Solis support to remotely set these to 100A. T...

Hi Dave, Thanks for your reply. Before I sorted the battery heating, the SOC when overnight charge started was between 20 & 30%, so that could have been a factor. The last two or three days, post heating, the SOC at start of charge was over 40%, so shouldn't be a factor. The batteries are sittin...

Similar to another thread here. I have 4 x LV5200 batteries and a Solis 6kw hybrid inverter. I experienced the low charge rates as others have due to low temperatures (3-5 deg C), so I now have an insulated, temperature controlled enclosure around the batteries keeping them at a nice warm 21-25 deg ...