I want to add another SUN-BAT-5.32 battery
I already have a Sunsynk single battery and inverter system installed in my home., together with solar PV. I'm very happy with it, but I'd like to add a second battery.
The first thing to say is that I think the installers fitted a different battery to the one I was quoted for. This is what the quote said:
But the stickers on the side of my battery state that they installed a SUN-BAT-5.32. Clearly a different model with slightly greater capacity. I assume therefore that I am looking for another SUN-BAT-5.32. So far, so good.
I've seen a few comments flying around suggesting that systems based on CATL batteries should not be mixed with other types such as BYD or REPL based batteries.
I believe the SUN-BAT-5.32 is only based on either BYD or REPL cells anyway, but my question is, does is matter which cell type one chooses, or are all SUN-BAT-5.32s based on BYD?
How is it possible to tell which cells are installed from the outside of the battery casing? I've attached an image showing the label on the outside of my existing battery. Sorry about the angles, but the text can still be read. One other question - does it matter if I add a 5.12 kWh capacity battery instead of a 5.32 kWh? I assume it is okay as long as the BMSs in the batteries are compatible with each other. There are a few questions here, but I'm just looking for advice. Thanks in advance!
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