Redpill me on used Tesla batteries.
Do they need a special charger? I might want to do a power wall kind of thing outdoors on my patio with solar panels.
Redpill me on used Tesla batteries. Do they need a special charger?
Redpill me on used Tesla batteries.
Do they need a special charger? I might want to do a power wall kind of thing outdoors on my patio with solar panels.
>Model S - 544 kg (1,200 pound) battery
>Model Y has a 771 kg (1,700 pound) battery
Better be a strong wall.
You could probably interface them but they are too big and way the frick too heavy for domestic solar use imo. Short-circuit one?, you toast
>Short-circuit one?, you toast
These things have a dozen fuses inside them.
>roof starts to leak over the batteries
>fuses: "AYEAH!"
>Redpill me on used Tesla batteries.
6S? big ass assemblies IIRC?
Idk, there are different chemestries too. Li-ion (NMC etc) or LiFePO4....
>Do they need a special charger?
You'd need BMS and charger fit for the chemistry
they are separed in bunch of modules.
>outdoors on my patio
Keeping the batteries away from the home where they can burn harmlessly would be wise and easy to do. That was custom in the acetylene lighting days with gas generators for fire safety and it's a wise move.
Easy way is fab it all on a skid, and stick skid in shed. Upgrades are as easy as disconnecting and swapping parts or the skid.
Each module appears to be 24 volts.
imagine finding out your insurance was void after a fire unrelated to your contraption destroys part or all of your house.
in my country home insurance is a rarity
no home insurance in Romania
how much to rebuild a home on a plot of land?
There's about a zero chance this will be cheaper than just buying lifepo4 cells and making your own. The days of buying an EV battery and hacking it up for a home power storage solution economically are over.
13.5kWh bank of lifepo4 cells for about $3200-$3400 depending on the cost of BMS from a US warehouse all tested for being good cells
https://solarsupplyhouse.com/product-category/lifepo4-high-capacity-cells/
If youre willing to roll the dice and wait on the chinks it can be even substantially cheaper. 27kWh of batteries for $3300 + BMSs
https://www.aliexpress.us/item/3256801380500583.html?aff_fcid=d1b8a5c346a94d06b28aae124b7d7d64-1695710233427-09778-_ArCe87&aff_fsk=_ArCe87&aff_platform=shareComponent-detail&sk=_ArCe87&aff_trace_key=d1b8a5c346a94d06b28aae124b7d7d64-1695710233427-09778-_ArCe87&terminal_id=c29f8151ed964a459c68cf05f513e0f0&afSmartRedirect=y&gatewayAdapt=glo2usa4itemAdapt
Came here to post this. No point with Lifepo4 costing so little. If you buy B-grade cells, you can get 15+kWh for ~$2500.
>Lifepo4
Are they as fire prone on Li-ion?
They can't really get a thermal runaway.
There's still stuff inside that can catch on fire but it's pretty hard to get that started.
A bit less, because they have less energy density. They are more robust too in terms of freezing.
Considerably less. Their only downsides are lower energy density (doesn't matter for home solar) and lower peak charge/discharge currents (ideal is 0.5C, doesn't matter for home solar).
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