Has anyone made a cigarette lighter jump cable to start gateway in grid out.

[CrazyRabbit]

this would be easy. I would think 10 amps from cigarette lighter would be sufficient. I would think two to five watts would be sufficient per controller. But perhaps both the gateway and powerwall controller would need to be powered to restart system, so load might be dependent on number of powerwalls.

 

[BGbreeder]

There are reports elsewhere that a 9V battery is sufficient.
This thread below reports about 1ma as sufficient.
Post in thread 'Restarting PW during power grid outage'
Restarting PW during power grid outage
More over here;

PowerWall Cold Start without Grid Power

In an experiment today, my PoweWall/Gateway setup would not start without Grid Power. Here is the sequence that I followed to do a cold restart of my system that consists of a 125A breaker on my main panel feeding a gateway connected to a backup panel and a generation panel with 9.9 kW of Solar...

teslamotorsclub.com

The Tesla manual says 12V, 18-16ga wire. So, perhaps as much as 5A, but I doubt it. https://www.tesla.com/sites/default...erwall_2_AC_GW2_NA_EN_Installation_Manual.pdf

All the best,

BG

 

[CrazyRabbit]

Yeah, the guy who attempted the jump start (1mA) didn’t need to, he still had 12v.
jump start is required when you hit the red button in grid out or the powerwalls are completely drained.
Boy Scout in me want to make a cable so I will never need it! If I don’t have it I will need one, if I have one I will never need one.

 

[BGbreeder]

Yeah, the guy who attempted the jump start (1mA) didn’t need to, he still had 12v.
jump start is required when you hit the red button in grid out or the powerwalls are completely drained.
Boy Scout in me want to make a cable so I will never need it! If I don’t have it I will need one, if I have one I will never need one.

Well, I'm a big believer in Murphy as well. With your new cable in hand, you should be all set to ward of the evil influences on your system.

Of course, if you ever do use it, I, for one, would be interested in hearing the details.

All the best,

BG

 

[jhn_]

I keep one of these charged and around the house. Plenty of uses including starting the gateway.

NOCO Boost Plus GB40 1000 Amp... Amazon.com

 

[KHYE]

May I know what's the necessity or benefit of doing this?

 

[Vines]

May I know what's the necessity or benefit of doing this?

If your system is dead or drained and the grid is out, this allows you to wake up the system to prevent damage and get the Solar alive and charging the batteries.

Also if the grid is down and someone hits the red button, you must do this or wait for the grid to return before your system wakes up regardless of the battery state of charge.

 

[KHYE]

If your system is dead or drained and the grid is out, this allows you to wake up the system to prevent damage and get the Solar alive and charging the batteries.

Also if the grid is down and someone hits the red button, you must do this or wait for the grid to return before your system wakes up regardless of the battery state of charge.

Thanks @Vines for the explanations, this makes sense now for me.

 

[CrazyRabbit]

I keep one of these charged and around the house. Plenty of uses including starting the gateway.

NOCO Boost Plus GB40 1000 Amp... Amazon.com

I would just use BLUETTI AC200max or EB70.