I've recently upgraded my setup with two 24V LiFePO4 130aH batteries, but they're running out of power early in the morning, around 3-5 am, which isn't ideal. I've reduced the usage to just the fridge and Starlink (sometimes the TV), which has helped a bit, but it's still not enough. Last year I had four of these batteries in a series/parallel setup providing 260aH, and they lasted me most of the year with only a few power shortages.
The batteries are currently protected but exposed to cold temperatures, especially since it's been down to 4°C (39°F) recently. I'm wondering if it would be wise to insulate them or if that's unnecessary? I'm not very knowledgeable about electrical systems, but I suspect the cold might be affecting their performance. I also want to know whether my charging system, which consists of three 400W solar panels and a Victron charge controller, is sufficient, especially during mostly overcast days. Any thoughts on insulating materials or other tips would be greatly appreciated! I'm located in Gippsland, Victoria, Australia.
1 Answer
You might want to consider insulating your batteries using materials like EPS or XPS foam. I embedded my batteries in thick insulation, and it really made a difference. You can also use heat pads if you're concerned about them getting too cold, just make sure the charging power is adequate. From my experience, batteries don't heat up much unless they get a significant charge, so keeping them warmer can definitely help with efficiency.
Thank you so much!