Current thoughts on a good 24v inverter?

[bullfrog]

One of the main concerns at least in the Prius battery is heat that is very detrimental to the life of the battery. They have a liquid and air cooling system both of which seem to need to function well I guess due to the high loads which hopefully you wouldn't have in a solar situation? From researching most people using them as 3000 watt generators are using an Uninterupted Power Supply (UPC) that is set low enough and does not require a power source outage to reset with the car's 200 volt battery taking the place of the UPC's battery which puts out voltage that is transformed by a step down transformer to 120 volt and split phase 220 volt power that can be connected in to a transfer switch in the house. I believe they stated 3,000 watts continous was as much as the car's charging and cooling system would tolerate being used for up to 3 days on 8 gallons of fuel. So it seems to me you would need enough solar to charge the 200 volt battery and keep it warm in cold weather (above 32 degrees} and cool in hot weather or under a load to keep from destroying the cells. I would be interested to see how this is done in an RV. I have been meaning to look for some results from people trying as I read there were some on YouTube. If you could keep all the other systems working on a Prius they seem to do a great job as a 3000 watt generator or a 2000 watt 12 volt Direct Current (DC) inverter source which is really cheap, just load it on a car hauler turn it on and plug it in your RV. There was one on Craig's list totaled from a rear end collision for $1,500. Sometimes for as little as $500 but they will soon need a battery and battery pack which ends up being more than they are worth. The one thing that confusses me is does the Tesla battery come with a 24 volt treminals or has it been modified?

 

[Redbearded]

The Tesla is a whole different animal to the Prius (except the prime) as Toyota uses NiMH cells. The Tesla uses a modular Lithium battery system which is broken down into 24V modules. I think there are 14-16 modules per vehicle and I will only be using one module (so far...).

 

[John61CT]

24v Tesla battery mentioned at least three times above, you mentioned EV battery in post number 2.

Good memory not required, just passable reading comprehension.

Thanks for the snark

My question was why. Why go to all that trouble and risk?

Maybe OP thinks it will save money.

Maybe he thinks will allow running aircon off-grid longer.

Maybe he just enjoys a challenging science project?

And since we likely went round on all this last time, I was hoping to avoid having to repeat it all if he was aware of the past thread where we did so.

Ultimately just trying to help, many hundreds of posters across dozens of forums talk about wanting to repurpose EV packs for House bank use in a mobile context, but I've yet to see a thread go into detail on how to overcome the challenges.

Not that I'm actually that interested on the howTo itself; want to make sure other members don't get the impression this is a practical or even safe option for them.

Nor do I want to discourage qualified pioneers from tinkering, just think such projects should stay in the back shed rather than living on top of it in a tiny living space.

 

[tx2sturgis]

Yes, using re-purposed EV batteries is a bit risky I think, but hey, we gotta do something with all the used EV batteries that are replaced with new.

It's interesting when people go outside the box to cobble up something usable, we all learn something.

But, I've seen enough lithium battery fires that I wont be using a large one for power anytime soon. The lithium batteries in my drones and my new e-bike make me nervous enough without adding a DIY source of ignition. 

I'll stick with safe things like, you know, gasoline and propane!