A car battery with reduced range is still perfectly useable as a storage battery for a PV system.
A car battery with reduced range is still perfectly useable as a storage battery for a PV system. I got a high-voltage hybrid inverter when I built our PV (solar) system specifically for that reason: high-voltage EV batteries will appear on the market which I can use to create energy storage. Commercial storage systems are still too expensive for what they offer but used EV batteries are starting to appear at far more reasonable price levels. If a pack which used to store 90 kWh now only stores 70 kWh but costs 1/10 of a similarly-sized commercial storage system when combined with a suitable controller then I'd just get a bunch of them.
Posted by hagbard_c on Oct 29, 2026, 10:29 PM
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Not at all, actually.
NewA car battery with reduced range is still perfectly useable as a storage battery for a PV system.
NewHere in Argentina we are in permanent summer time GMT-3 since a long time, but we should be in GMT-4.
NewYou should do some basic research yourself.
NewWell, actually not.
NewI have a 2022 mini that I use constantly.
Two observation: 1.
Cautiously optimistic for them.
A car battery with reduced range is still perfectly useable as a storage battery for a PV system.
A car battery with reduced range is still perfectly useable as a storage battery for a PV system. I got a high-voltage hybrid inverter when I built our PV (solar) system specifically for that reason: high-voltage EV batteries will appear on the market which I can use to create energy storage. Commercial storage systems are still too expensive for what they offer but used EV batteries are starting to appear at far more reasonable price levels. If a pack which used to store 90 kWh now only stores 70 kWh but costs 1/10 of a similarly-sized commercial storage system when combined with a suitable controller then I'd just get a bunch of them.
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