How cold affects home battery charging
It is rare that it gets very cold in the UK, but in January we had a few nights when it was cold. On the 18th January it got down to around -5c. As our solar batteries are in our loft it can get cold up there.
I woke up on the 18th to find the batteries had not fully charged. They were around 80%. Using my Home Assistant card I could see that they had only been using 2200 watts from the grid and not the 3600 watts the inverter can support.
The night before is what it should look like.
Home Assistant dashboard showing the batteries not pulling the full amount from the grid
This is how it looked on the Luxpowertek dashboard
You can see just over 2000 watts being used and some odd spiking at the start of the charging
This is what it normally looks like
This is what a normal battery charge looks like. Using the full 3600 watts.
It has never done it since, so I can only put it down to the cold.
