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| 1999 to 2003 7.3L Power Stroke Diesel 7.3L Power Stroke Diesel equipped Super Duty and Excursion. |
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#1
Sun, June 17th, 2012, 02:12 PM
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3rd Battery?
Just acquired a 3rd battery. Its not made with vehicles in mind. Its rated for 100amps/8hrs. It is used to run cell phone towers in case of power outrage. But I have heard of one being used to jump a car. They are 12v. How would this work with stock alternator and starter? I'm going to make it to where I can isolate the batteries from the other 2 so I can run an inverter all night off that battery without worrying about drawing the other batteries.
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01 F350 7.3 4x4 CC SRW/3.73/315-75-16/Aeroforce Interceptor/BD Thruster II/ Bellowed Up-Pipes/4" turbo back exhaust/CCV Mod/DIY 6637/FPR Shimmed to 65 PSI/TS chip reburned with PHP tunes (Stock, 40T WITH Whsiper tune, 80DD, 100R, 140Ex, 140SS)/Replaced and Cleaned EBPS & Tube 4-6-12/Zoodad mod/Recon smoked cab lights/MM Hubs/Cowl Hood/HPx 
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#2
Sun, June 17th, 2012, 11:00 PM
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I would just hook it up via isolator and run your accessories off of it. The isolator only allows the battery to be re-charged and does no allow current to flow the other way, basically it will not have any effect on your starting system.
Another option would be to run a heavy duty solenoid that activates when the truck is running via oil pressure switch or something similar to keep the battery charged, then wire a momentary switch inside the cab just in case you need a little extra boost for starting.
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#3
Thu, June 21st, 2012, 07:14 PM
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Thanks 907dave. I like the isolator idea...seems less troublesome and worry free. I may add a relay later to give juiceg back to the batteries for a boost.
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01 F350 7.3 4x4 CC SRW/3.73/315-75-16/Aeroforce Interceptor/BD Thruster II/ Bellowed Up-Pipes/4" turbo back exhaust/CCV Mod/DIY 6637/FPR Shimmed to 65 PSI/TS chip reburned with PHP tunes (Stock, 40T WITH Whsiper tune, 80DD, 100R, 140Ex, 140SS)/Replaced and Cleaned EBPS & Tube 4-6-12/Zoodad mod/Recon smoked cab lights/MM Hubs/Cowl Hood/HPx
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#4
Sun, June 24th, 2012, 10:32 PM
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Keep in mind that battery probably wasn't designed for the vibration and abuse riding in a truck will give it. Hope it holds up though cause it should run inverter for days.
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2000 F250 CC shortbed. 5" diamond eye, S&D intake, 4" lift 315's. 3.73's
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#5
Mon, June 25th, 2012, 08:45 PM
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Yea, I have nothing invested and he comes around about every 2yrs.
Can someone post a product page of an isolator. Everything I'm finding has something to do with filtering noise out of the current for audio devices.
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01 F350 7.3 4x4 CC SRW/3.73/315-75-16/Aeroforce Interceptor/BD Thruster II/ Bellowed Up-Pipes/4" turbo back exhaust/CCV Mod/DIY 6637/FPR Shimmed to 65 PSI/TS chip reburned with PHP tunes (Stock, 40T WITH Whsiper tune, 80DD, 100R, 140Ex, 140SS)/Replaced and Cleaned EBPS & Tube 4-6-12/Zoodad mod/Recon smoked cab lights/MM Hubs/Cowl Hood/HPx
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