P1000 auxiliary battery, any issues after installing one?

pilotflash

pilotflash

New Member
Mar 27, 2016
5
15
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920
no winch or lightbar, only Rockford fosgate stereo that is disconnected after every ride, 2nd battery since new in 2016, will not start below 20F even with jumper pack, clutch upgrade done in November, checked all grounds, had starter tested at local rebuilder, all good, I like the auxiliary battery setup and having a place for it so convenient, anyone who has done it, feedback would be cool, thanks.
 
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J

JTW

Guest
The only issue I experienced after installing was some mild burning sensation when I went pee. Other than that everybody should do it!
 
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OnTheJob

OnTheJob

Well-Known Member
Dec 29, 2017
426
925
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Bristol, NY
Ownership

  1. 1000-3
I was having the same issues, just really slow to start when it was cold out. I think it's because the battery is too small for the job. My next battery I'm going to see if I can go bigger, if I can get something bigger in the same spot. Meanwhile I did this which has worked very well:

Next up was a battery tender: Img 5144 1 jpg

NOCO Genius G1100

Img 5145 1 jpg

With a port plug for a standard 110v extension cord. Had to drill a 2 inch hole through the fender. Nothing under there to bump into.
Img 5147 1 jpg

I picked the passenger side because it's closest to the outlet and I have to walk by it anyway to get to the driver's seat. Very simple install. The battery tender plugs in the port plug. Had to buy a separate pigtail that plugs into the battery charger in lieu of the large alligator clips it comes with. There are two sizes and I got the small 1/4" ring terminals.

Img 5151 1 jpg

It charges the main battery first and then when it reaches 12.8v it open the True Isolator and begins charging the AUX battery. There isn't any hesitation when I start her up cold now.
Parts list:
Charger: https://www.amazon.com/gp/product/B004LX3AXQ/ref=oh_aui_detailpage_o03_s00?ie=UTF8&psc=1
Port plug: https://www.amazon.com/gp/product/B009ANV81S/ref=oh_aui_detailpage_o03_s00?ie=UTF8&psc=1
Terminal connector: https://www.amazon.com/gp/product/B004LWQ35Y/ref=oh_aui_detailpage_o01_s00?ie=UTF8&psc=1
 
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ohanacreek

ohanacreek

My EcoBoost has I4WD
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Lifetime Member
Jul 25, 2013
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Shelby County, Alabama
Ownership

  1. 1000-5
no winch or lightbar, only Rockford fosgate stereo that is disconnected after every ride, 2nd battery since new in 2016, will not start below 20F even with jumper pack, clutch upgrade done in November, checked all grounds, had starter tested at local rebuilder, all good, I like the auxiliary battery setup and having a place for it so convenient, anyone who has done it, feedback would be cool, thanks.

If you have the second battery isolated it disconnects from the main system when voltage is below 12.7(TRUE brand iso) so it’s no help starting.