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-   -   Secondary Batery (https://chevroletforum.com/forum/express-g-series-vans-30/secondary-batery-92624/)

GeneveConversionVan October 15th, 2018 8:17 AM

Secondary Batery
 
Hello All,
So Im planning to install a secondary batery for the electronics in my travel Van (screen, playstation, Blueray, etc) and I found information for the oem batery tray, but not for the rest of the OEM diesel installation (wiring, isolator, fuses) How is the diesel secondary batery connected?

LCAC_Man October 15th, 2018 10:46 AM

https://cimg7.ibsrv.net/gimg/chevrol...b78663140b.gif
direct parallel connection, no isolator, no fuses

GeneveConversionVan October 15th, 2018 10:50 AM

So simple and functional that its boring.. LOL

StanVan October 15th, 2018 1:41 PM

Okay, try this one on for size. On some gas models, a second battery is energized in to the system by a relay that senses a charge from the alternator. This is done so a depleted aux battery won't drag down starting the engine. I don't know which years have that wire, but I hope mine has it when I can add an aux battery.

GeneveConversionVan October 15th, 2018 1:48 PM


Originally Posted by StanVan (Post 364296)
Okay, try this one on for size. On some gas models, a second battery is energized in to the system by a relay that senses a charge from the alternator. This is done so a depleted aux battery won't drag down starting the engine. I don't know which years have that wire, but I hope mine has it when I can add an aux battery.

Yep, thats how a secondary will be charged and I somehow know all what is required. Just wondered if the solution was oem.

StanVan October 15th, 2018 1:56 PM

That wire is supposed to be in the harness somewhere. I would guess it is under the drivers seat, because it makes sense when the aux battery is on the frame under the floor, just behind the driver. And there's a tap for power large enough to handle charging there as well.

GeneveConversionVan October 15th, 2018 2:14 PM


Originally Posted by StanVan (Post 364299)
That wire is supposed to be in the harness somewhere. I would guess it is under the drivers seat, because it makes sense when the aux battery is on the frame under the floor, just behind the driver. And there's a tap for power large enough to handle charging there as well.

Oh I will look for it. But isolator and fuses and all required hardware will have to come from Amazon, I guess,

StanVan October 15th, 2018 2:25 PM

There are cheap RV charger relays that will isolate just fine. You might find one with a fuse built in.

GeneveConversionVan October 19th, 2018 12:32 PM


Originally Posted by StanVan (Post 364303)
There are cheap RV charger relays that will isolate just fine. You might find one with a fuse built in.

Yep, thanks.

Amazon has some nice prebuilt kits.

ChevyVanMan October 19th, 2018 6:09 PM

Always run my trucks positive to positive , neg to good grounds. Never any problems and blessing of techs. Isolater relay is good though, think one that is timed though before closing contact with second battery.

Ken


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