IEE have this - cant get access as I am not a member ... https://ieeexplore.ieee.org/document/9093224/metrics#metrics
Just out of interest ... where did you pull this graph from? I have fished about in my Solis RHI interface without success. Thanks.This is my data today - 12 a and then 50 a ... blue line is this BMS charging current limit ... so its is def a variable ... will monitor tomorrow ...
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Hi, in the Solis cloud web site - select overview - device - choose your inverter and scroll down and find selections on left hand side - select the data you want to display and graph appearsJust out of interest ... where did you pull this graph from? I have fished about in my Solis RHI interface without success. Thanks.
Thank you.Hi, in the Solis cloud web site - select overview - device - choose your inverter and scroll down and find selections on left hand side - select the data you want to display and graph appears
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My Installers don't seem as helpful has yours claiming I should have done my homework more myself and pushing the blame more towards fox.Yes, exactly as you say, as I need to get on the payback tariff (SEG Payments) etc we needed certified install - but therefore they are not complaint to MCS, BSEN regs .. It is not housed where Appropriate temperature control can be maintained ...
@coolcarper1 go back at them on this, would be my advice ... if you are wanting SEG ?
But Fox claim they instruct their certified installers as to the limits ?.My Installers don't seem as helpful has yours claiming I should have done my homework more myself and pushing the blame more towards fox.
Yes I agree and have mentioned seeking legal advice and had a heated phone call shortly after.But Fox claim they instruct their certified installers as to the limits ?.
Personally I'd threaten the installers with small-claims-court or name-and-shame. Any installer worthy of his or her salt _should_ know temperature limits of LiFePO4s and should know whether the battery has a heater or not.
Sadly it seems most are 2 GCSE's short of an A-level ?
It will ?... I wonder if a small mat heater with a thermal switch might help as well, after all batteries do better when warm and struggle in the cold.
I set my heater off at 21c it drops to about 20 and comes back on.Ok so I took the plunge and have added heat to my battery, I hooked up a Wi-Fi controlled unit to a 14w heat mat.
the temp control unit has a probe lead which is dangling inside my insulated enclosure, this tells the unit when it up to temp and when it needs heat. The mat is a reptile heat type and is plugged into the controller socket, I can look on my iPad whether it’s heating (on) or cooling (off) and what the temperature is.
connected up late afternoon so not much sun so will monitor next sunny day when it’s cold, this mornings frost let 600w to the batteries and 1Kw to the grid as it was 12 oC in the enclosure.
now it’s between 18 and 21 Deg C as not sure what the optimum temp the batteries perform at yet.
Good result. 25 is optimum for LiFePO4's. Similar to @coolcarper1 I've set mine to be on at 20 off at 23. Over this winter if keeps them averaging around 23-25 which is ideal.now it’s between 18 and 21 Deg C as not sure what the optimum temp the batteries perform at yet.
Just now thinking we could do with an additional battery .....
You can never have too many batteriesJust now thinking we could do with an additional battery .....
I had the same problem with charge limit of 12A, after reading this thread i used a old heated propagator i had knocking about and some old insulation board taped around a suitable box, it seams to resolved the issue. I had to tell my installer who reckons he had no idea! anyway its sorted and didn't cost me anythingOk so I took the plunge and have added heat to my battery, I hooked up a Wi-Fi controlled unit to a 14w heat mat.
the temp control unit has a probe lead which is dangling inside my insulated enclosure, this tells the unit when it up to temp and when it needs heat. The mat is a reptile heat type and is plugged into the controller socket, I can look on my iPad whether it’s heating (on) or cooling (off) and what the temperature is.
connected up late afternoon so not much sun so will monitor next sunny day when it’s cold, this mornings frost let 600w to the batteries and 1Kw to the grid as it was 12 oC in the enclosure.
now it’s between 18 and 21 Deg C as not sure what the optimum temp the batteries perform at yet.
I was going to reply 'cool', but that would be an oxymoronI had the same problem with charge limit of 12A, after reading this thread i used a old heated propagator i had knocking about and some old insulation board taped around a suitable box, it seams to resolved the issue. I had to tell my installer who reckons he had no idea! anyway its sorted and didn't cost me anything