Hi all,
As the temp is dropping and I am noticing slower charging overnight, I was considering insulating the battery, that is in the garage.
Obviously I want to monitor the temperature, but I'm a little confused over the temps from the apps and website.
On the phone app, as I was looking at turning on the 'warming' feature, last night it was showing the battery was 10'C, but on the website 'batTemperature' was showing 22.9'C
This morning the battery in the phone app is 16.9'C and the website is 27.4'C
Seems quite a big delta?!
The website is saying all is good, nice and toasty, but the battery is ramping up charging in stages when charging overnight, so its obviously more likely to be what the phone app is reporting.
Site Admin
The website and energy stats app use the BMS temp, which is the internal battery management chip at the top of the battery. Normally, 10-12°C higher than the true battery cell temps. On the foxcloud2 app under devices battery, that temp is showing you the lowest cell temps, which is the measurement used to control the bms charge and discharge rate.
Community Admin / FoxESS Elite Professional
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Did I help you? Feel free to leave me a tip Book a zoom meeting for remote consultancy or help Switch to Octopus and earn £50 Get a heatpump from Octopus and earn £100 Subscribe to my YouTube channelFox ESS Tri Inverter Installation
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Heatpump & Low Carbon Housebuild
Thanks Will!
Don't suppose you know what wattage the heater element if for the EP-11 battery?
Insulation board seems quite pricey and struggling to find anyone with some left overs.
Wondering if its low wattage, if its going to cost that much to warm it, in the cheap period.
Don't suppose you know what wattage the heater element if for the EP-11 battery?
Insulation board seems quite pricey and struggling to find anyone with some left overs.
Wondering if its low wattage, if its going to cost that much to warm it, in the cheap period.
@Will
Sorry to labour a point.
On the app when you see the graphic of the battery in the Battery warmup option, is the temperature shown the lowest cell temp as discussed above, and it’s this temp that controls when heating kicks in and out ?
Thanks
Sorry to labour a point.
On the app when you see the graphic of the battery in the Battery warmup option, is the temperature shown the lowest cell temp as discussed above, and it’s this temp that controls when heating kicks in and out ?
Thanks
Like other people seeing battery temps drop this week .. so I had enabled the Battery Warm function ... but for some reason, even though it says that the battery is heating (presume the arrows are showing this) .... the BMS temp is dropping and no discharge happening from the battery .. even though battery on 100% .. not sure what is wrong here