Tesla S Battery Bank for Solar

[Maddog55]

I'm thinking about using a used Tesla S battery module 24V, 250Ah, 5.2kWh for the TT solar battery bank. It would be a used one from a wrecked Tesla.

Has anyone tried this?
Any pros / cons?

[DaveMatthewsBand]

I'm thinking about using a used Tesla S battery module 24V, 250Ah, 5.2kWh for the TT solar battery bank. It would be a used one from a wrecked Tesla.

Has anyone tried this?
Any pros / cons?

Talk to a member named alanhenson.

He’s talked about that several times lately.
Not sure if he’s actually doing it.


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[webpilot]

I'm thinking about using a used Tesla S battery module 24V, 250Ah, 5.2kWh for the TT solar battery bank. It would be a used one from a wrecked Tesla.

Has anyone tried this?
Any pros / cons?

Check out Mortons on the Move. They have a Tesla battery working in their 5th wheel. This series of videos outlines all they did for the solar and Tesla battery install. https://www.youtube.com/watch?v=0fo2...FZtmxI_gcIo6yx

Best of luck! I think it is worth investigating.

My $0.01 worth
George

[Gyro Gearloose]

Check out Mortons on the Move. They have a Tesla battery working in their 5th wheel. This series of videos outlines all they did for the solar and Tesla battery install. https://www.youtube.com/watch?v=0fo2...FZtmxI_gcIo6yx

Best of luck! I think it is worth investigating.

My $0.01 worth
George

I watched the videos and was glad to see that they used a Buck/Boost converter to change the 24VDC to 12VDC instead of changing all the RV 12VDC to 24VDC. I probably would have used a little larger 12VDC battery to run the hydraulics etc.

Glad to see that they used an MPPT solar controller.

Xantrex also makes great Inverter/Chargers but I'm not sure if they are hybrid.

I think it would be cool to utilize the battery plumbing with a pump/heater/heat sink to manage battery temperature.

And since they are being so hi-tech, why not use an AeroGel blanket, the best insulation in the world besides a vacuum. You can get the stuff on eBay. AeroGel is also the lightest solid in the world.

[DaveMatthewsBand]

I’m guessing you have zero warranty on a battery pulled from a wrecked car?

I kinda like the 10 year warranty on my lithium bank.


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[alanhenson]

I'm getting parts together as we speak. Going with 4 or 6 Tesla batteries and a victron 48v8000 watt inverter. The big difference between the Morton's system and now us there are plug and play bms that will do everything he did as far as voltage and temperature protecting go with far less parts. I'll be going with an REC bms.

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[Maddog55]

I’m guessing you have zero warranty on a battery pulled from a wrecked car?

I kinda like the 10 year warranty on my lithium bank.


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Warranty is good. But the Tesla S battery cell is way over engineered for TT application. In the end, you’ll likely get a bigger bang for the buck with a used Tesla battery.

A 48V 200 amp LiFePo4 weighs about 305#’s with 10kWh.
Tesla 24V 233 amp LiFePo4 weighs about 60#’s with 5.3kWh. (5.3 * 2 = 10.6kWh at 120#’s)

The power to weight ratio, over engineered reliability, and cost benefit are definitely big pluses on the Tesla.

[Maddog55]

Check out Mortons on the Move. They have a Tesla battery working in their 5th wheel. This series of videos outlines all they did for the solar and Tesla battery install. https://www.youtube.com/watch?v=0fo2...FZtmxI_gcIo6yx

Best of luck! I think it is worth investigating.

My $0.01 worth
George

Just watched all the solar clips on Morton’s on the Move today. Definitely one of the more insightful video clips on functional solar capability at a reasonable cost.

Continuing to digest all the options.

[Maddog55]

I'm getting parts together as we speak. Going with 4 or 6 Tesla batteries and a victron 48v8000 watt inverter. The big difference between the Morton's system and now us there are plug and play bms that will do everything he did as far as voltage and temperature protecting go with far less parts. I'll be going with an REC bms.

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I’m looking at the same 48v8000 watt inverter. It looks mighty attractive.

[alanhenson]

I’m looking at the same 48v8000 watt inverter. It looks mighty attractive.

I'm just trying to decide if I can run one inverter to run the whole RV. Tom did it in Morton's on the Move. Not sure exactly how that works. I'd rather not have to buy two of them to run both legs. Any ideas?

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