I was looking around for a bigger alternator for my van, I'm planning on adding two batteries along the frame rail...

I came across this info. The ambulance prep package has a 225- amp alternator.
Would this require any other parts to install like bigger wiring or brackets?

And does anyone have the Part number for it?

" Alternator — 225-amp (6.8L V10 engine only)"

I saw that info here: http://assets.forddirect.fordvehicle...D4CA7892D4.pdf

 

I beleave the alternator size is the same. The cables will be 2x larger to handle the current. Without larger cables you will melt all kinds of stuff.

Be sure to add extra battery to frame grounds then body and engine to frame grounds as well! make sure all connections are clean metal on clean metal!

 

Not sure if this is helpful but there are parts available to add a second alternator too---also under the ambulance use category. I'll search through some older posts I've made and get a link to the thread covering that topic.

PST is right on with the grounding issues!

 

Plan well for adding batteries. It's not hard, but make sure you have the correct scheme to iso the starting battery.

Depending on your intended use, and since you are in the South, I would also incorporate solar / deep-cycle. I even had them here in the NE.

 

Here's the link on multiple alternators: https://www.ford-trucks.com/forums/1...tor-setup.html

 

Interesting info.
I really don't see a need for solar even tho I had deep considerations for it just recently.
with 3 batteries and a 255amp alt I should be able to go 3 days without worry. But I don't have any forseeable plans of staying put for 3 days in one spot. So the power shouldn't ever get discharged too much that the 255 amp alt couldn't replace within a med distance drive.
As for two alternators, while it's good for equipment usage it's way more money and work then I honestly need.

 

For my ARES/Emergency van, I use multiple deep cycle batteries connected to a smart Inverter/UPS/Charger. I have a 250 amp custom alternator with external rectifier. I use a hellroaring setup with a power management system (linkpro) for the deep cycles in the back. At 65mph cruise the alternator only puts 15-20 amps into the bank while running the driving loads such as lights/AC. I tried to repulley the alt, and got good amps, but then voltage would go out of control (16+) when I accelerated. At that rate it would take 20 hours to charge from 40%. While I still have everything setup that way, I simply plug the van into shorepower now.

If I were to rework the setup (I might after this tornado season) I would go with a second alt that only charges the battery bank, and shares only the ground with the current electrical system. As it stands, I have a small solar cell on the roof and a Honda quiet generator made for battery charging when I need extended power.

The inverter I use:
Tripp Lite PowerVerter® APS 2000W Inverter/Charger with Auto-Transfer Switching and Hardwire Input/Output (APS2012)

If you wanted a similar setup for cheaper, and didn't want to run 110ac loads, you could get a progressive dynamics 9x00 series or similar power converter for an RV. They just charge batteries and run 12vdc from 110AC.

Edited to add: When I get back to my house this evening or Monday, I will check the FSMs and see what they say about the heavy duty alt option.