The Electricity Was Out Last Night....

[David L]

MASTER THREAD: Powering house or other things with Model 3 12V battery

More of a garbage dump thread at this point, maybe you can read through and create a "guide" how to post. You need an inverter hooked to the 12V battery TLDR and need to know the number of amps the car can provide.

It's not a good idea to connect an inverter directly to the 12v battery. The battery charger has less capacity than the 12v socket in the center console, so you can easily drain and kill the battery if you're not paying attention. Instead, you need to tap the 12v supply for the entire car in the penthouse located beneath the rear seat. The in-rush current into the inverter at power-up, however, can cause the car to think there's a short, so the linked thread describes a workaround using a resistor and a relay. It's best to live with the limited capacity of the 12v socket (enough for a dedicated vehicle fridge/cooler with a soft-start compressor), because tapping from the penthouse is much more complicated.

 

[user212_nr]

It's not a good idea to connect an inverter directly to the 12v battery. The battery charger has less capacity than the 12v socket in the center console, so you can easily drain and kill the battery if you're not paying attention. Instead, you need to tap the 12v supply for the entire car in the penthouse located beneath the rear seat. The in-rush current into the inverter at power-up, however, can cause the car to think there's a short, so the linked thread describes a workaround using a resistor and a relay. It's best to live with the limited capacity of the 12v socket (enough for a dedicated vehicle fridge/cooler with a soft-start compressor), because tapping from the penthouse is much more complicated.

Well it would be useful for someone to put together a guide... there are over 197 posts on the 12v thread, and the answers are probably somewhere in the middle section.

 

[David L]

Well it would be useful for someone to put together a guide... there are over 197 posts on the 12v thread, and the answers are probably somewhere in the middle section.

Courtesy of @marcmerlin: Marc's Blog: electronics - Using a Tesla Model 3 as Emergency Power Source In Case of Grid Failure

 

[user212_nr]

Courtesy of @marcmerlin: Marc's Blog: electronics - Using a Tesla Model 3 as Emergency Power Source In Case of Grid Failure

In response to your post, I've created a MediaWiki site, teslainfowiki.com, and I've posted your link as the first entry.

GettingACPowerFromATesla - Tesla Info Wiki

Anyone who wants to can create pages and edit them (with or without an account, like most wikis). To create a page, just enter the page that you want into the URL and it will allow you to create it.