Have to read up more on the PV vs Sinewave inverter battle.
Backup is great, but I don't want to have 10 batteries charging "just in case".
I was thinking of having, maybe, just 1 or 2. Just enough to fool the PV inverter into thinking its connected to mains. Might need to put a large diode in between, so that power does not flow back into the sine inverter
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