4 ms·
pulling that kind of wattage from a 12v car battery will destroy it in short order, and I’m not sure it can even discharge that fast. Last time our power went
by nkingsy 6y ago
pulling that kind of wattage from a 12v car battery will destroy it in short order, and I’m not sure it can even discharge that fast.
Last time our power went out I charged my 48v ebike battery off of my leaf’s 12v, then used that to power a big inverter to run the fridge.
Now I have some dedicated solar that can charge the ebike, so no need for shenanigans.
Anyone looking to do this, there are challenges, and don’t do it with a battery that isn’t built for serious discharge (mine is 1.7kwh and rated for 3k watt bursts). Most off the shelf ebike batteries will not tolerate that kind of abuse.
- benlivengood 6y agoAll car batteries will provide over 3KW since they're rated for 300-900 cold-cranking-amps but efficiency and capacity are pretty low at those rates.
- turtlebits 6y agoMost batteries are rated to pull very high amps for a short period of time. Not for hours on end.