Using Bolt Battery as home emergency backup - Page 8 - Chevy Bolt EV Forum
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post #71 of 106 (permalink) Old 04-28-2018, 04:49 PM
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Here are some photos of what the positive DC power cables and fuse holder looks like when attached to the small shield bracket that normally resides in front of the aux battery under the hood. Note the conforming bends on the shorter cable that goes directly to the aux battery positive terminal.
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post #72 of 106 (permalink) Old 04-28-2018, 05:33 PM
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That's cool. The one I picked was also very well rated, along with long youtube reviews and tests.

I guess my philosophy on backup is not to spend too much money, to test stuff myself hard, and to have multiple options (redundancy). I have a $100 800W gasoline generator also, as second stage backup.

EDIT: per an online reviewer...I put an RFI filter and surge suppressor on the output.

Last edited by just frank; 04-29-2018 at 12:14 PM.
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post #73 of 106 (permalink) Old 04-29-2018, 10:42 AM
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Originally Posted by just frank View Post
I used this one:

https://www.amazon.com/Tiger-1500W-P.../dp/B008JGE8LE

Costs less than 1/2 what Greg's cost. And I've used it to run several long terms tests and run my house several times with it without any problems.
After reading the one-star reviews (12% of the total!), and the questions and answers, I went for the more expensive Samlex model.
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post #74 of 106 (permalink) Old 06-22-2018, 06:17 PM
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Originally Posted by GregBrew View Post
After reading the one-star reviews (12% of the total!), and the questions and answers, I went for the more expensive Samlex model.
Why settle for those weeny 12 volt inverters?

http://www.setec-power.com/supply/vehicle-to-home

http://www.setec-power.com/supply/ev-plug


Somebody needs to contact them, and find out if they can do them for CCS Combo 1.
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post #75 of 106 (permalink) Old 06-22-2018, 07:13 PM
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Originally Posted by GJETSON View Post
Why settle for those weeny 12 volt inverters?

http://www.setec-power.com/supply/vehicle-to-home

http://www.setec-power.com/supply/ev-plug

Somebody needs to contact them, and find out if they can do them for CCS Combo 1.
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post #76 of 106 (permalink) Old 06-23-2018, 02:06 PM
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And while you are grokking all this, you may want to check this out too.

http://evtv.me/2018/06/100kwh-tesla-...powersafe-100/
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post #77 of 106 (permalink) Old 06-23-2018, 04:00 PM
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Originally Posted by GJETSON View Post
And while you are grokking all this, you may want to check this out too.

http://evtv.me/2018/06/100kwh-tesla-...powersafe-100/
Thanks for the link. I'm planning a solar system for our new house. This is a great resource.

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post #78 of 106 (permalink) Old 06-24-2018, 02:53 AM
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Originally Posted by drdiesel1 View Post
Thanks for the link. I'm planning a solar system for our new house. This is a great resource.

Makes the idea of paying almost $10k for a 13.5kWh PowerWall when you've got five times that capacity sitting in the driveway seem kind of silly. The only problem is that without a backup battery like the Powerwall, a solar PV system goes down when the grid goes down, so there'd be no way to charge your Bolt from the home solar system during a power outage.


You'd be surprised how many people fork out tens of thousands of dollars for solar PV, and don't realize it dies with the grid.
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post #79 of 106 (permalink) Old 06-24-2018, 03:47 AM
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Makes the idea of paying almost $10k for a 13.5kWh PowerWall when you've got five times that capacity sitting in the driveway seem kind of silly. The only problem is that without a backup battery like the Powerwall, a solar PV system goes down when the grid goes down, so there'd be no way to charge your Bolt from the home solar system during a power outage.


You'd be surprised how many people fork out tens of thousands of dollars for solar PV, and don't realize it dies with the grid.
The plan is to build a system that will use a battery and maximize it for the house.
I can charge the car on off peak if needed. The main thing for me is to have as close
to ZERO grid use as possible. Spending 15K to design a system that can run my shop,
house and maybe add some power to the Bolt would be my ideal system.

I can run off the battery at night for the refrigerator, TV, and lights.
I might even consider some 12 volt lighting as a secondary system.
It's a blank slate for me. I can add anything to the house while building.

My area has open sky for all day sun. I wouldn't use the Bolt unless it was an emergency!
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post #80 of 106 (permalink) Old 07-07-2018, 01:11 PM
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This has been a super interesting thread. For those of you that are powering multiple devices in your house (including gas heat), do you directly connect the AC side of the inverter to a 15A/120V breaker on the home electrical panel and switch off most of the remaining circuit breakers to keep under 1500 watts? If so, what kind of cord do you use? A plain old extension cord with exposed three wires (hot, neutral, ground) connected directly to the breaker/ground?

Edit: I did a little more research and it appears I can feed current "backwards" using a modified dual male extension cord that's plugged into one of my garage outlets. At least that's what this neckbeard told me on YouTube.

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Last edited by grommet; 07-07-2018 at 05:48 PM. Reason: Add words for clarity
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