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Old 06-12-2019, 12:48 PM   #1
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House Battery Ground, Chassis or Neg Busbar?

I'm getting ready to make cables to install my frame mounted pair of 100AH AGMs.

What's still not clear is whether I run the negative cable (from furthest battery) to the frame post the factory used to ground the body (18" away) or run the negative cable to my panels negative busbar?

I'm thinking the later since most if the diagrams I've seen show the negative lead going to a busbar and inverter.

And if the later, can the 2/0awg + - cables pass thru the same grommet or do they need to have some distance between them?

Lyall
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Old 07-30-2019, 11:27 AM   #2
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I was a bit early asking this but I figured it out Stickies under electrical / electronics gave me most of what I needed or directed me elsewhere.

I modified the most common schematic on this site for my plan. Attached with pictures. Three vector charging for the win!

Lyall
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Van Wiring plan.jpg   20190723_163330.jpg   20190620_174525.jpg  
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Old 07-30-2019, 02:45 PM   #3
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Must have missed your post in June. Surprised you didn't get a reply. I'm interested in the flexible panels you have. Can you tell me who is making those? Thanks
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Old 07-31-2019, 09:43 AM   #4
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Panels are Kingsolar sourced thru AMZN late May, prices are up $30 since my purchase... I didn't want a halo style rack on the 24" Fiberine High Top so I decided to go this route. Virtually no wind noise as installed.

https://www.amazon.com/dp/B017N7BRX6/


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Old 07-31-2019, 10:00 AM   #5
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Thanks for posting these photos. Helpful to me.
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Old 07-31-2019, 10:50 AM   #6
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Quote:
Originally Posted by LastBlackE350 View Post
Panels are Kingsolar sourced thru AMZN late May, prices are up $30 since my purchase... I didn't want a halo style rack on the 24" Fiberine High Top so I decided to go this route. Virtually no wind noise as installed.

https://www.amazon.com/dp/B017N7BRX6/


Lyall

Thanks I'll take a look.
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Old 08-01-2019, 12:32 PM   #7
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Quote:
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Thanks for posting these photos. Helpful to me.
I'd be lost without the help from this board, glad the pictures help.

Lyall
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Old 08-01-2019, 09:50 PM   #8
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Nice clean layout. I'm running that same Aimes inverter and will probably never buy another brand. I use it 24/7 in my work truck and it's humming along (silently) like a champ for a year and a half now. It gets a workout.

I wish I had found them earlier.

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Old 08-02-2019, 11:34 AM   #9
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Thanks Scotty!

I was on the fence between the AIMS 1250w and 2500w. I think the 1250w is scaled properly for 200AH of house battery. I can "work" around the lack of hard wiring support that comes with the 2500w. Coffee maker and small Instapot would be biggest consumers at this time. Small microwave is easily supported as well

The $43 350amp bi-di shunt from Ali with gauge is pretty nice too. Seeing in and outbound amps without spending $200+ for the Victron is a great option.

https://www.amazon.com/AiLi-Battery-...dp/B07FGFFHC6/

And finally the builtin BlueTooth on the Victron 100/30 Solar controller is pretty slick too.

More pics attached including the 12v panel fully wired up.

Lyall
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20190730_153228.jpg   Screenshot_20190725-134831.jpg  
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