They might explode! 
I ordered the HD alternator...
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Senior User
Joined: Jan 2006
Posts: 315
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From: Baton Rouge
I ordered the HD alternator...
when i ordered my 2006 F-250 CC PSD. I don't have any need for it, but for 40 bucks I figured i might as well have the bigger one. A fellow told me today that if you don't have an extra load on the battery, that the HD alternator will over charge the two batteries and i'll be replacing batteries all the time... does this sound right?
"Mifflin Clay"
Joined: Jul 2005
Posts: 3,177
Likes: 4
From: Mifflin, PA
Originally Posted by stebab
when i ordered my 2006 F-250 CC PSD. I don't have any need for it, but for 40 bucks I figured i might as well have the bigger one. A fellow told me today that if you don't have an extra load on the battery, that the HD alternator will over charge the two batteries and i'll be replacing batteries all the time... does this sound right?
FTE Leadership Emeritus
Joined: Jul 2002
Posts: 42,561
Likes: 423
From: Long Island USA
The regulator on the alternator will keep it from overcharging, that's it's job.
Sounds like urban legend. Like someone who knew someone who know someone who had a high-draw setup on his truck and had the HD alternator. And kept frying batteries (or killing them because the alternator was faulty). But it was the HD alternator's fault, RIGHT?
Sounds like urban legend. Like someone who knew someone who know someone who had a high-draw setup on his truck and had the HD alternator. And kept frying batteries (or killing them because the alternator was faulty). But it was the HD alternator's fault, RIGHT?
Senior User
Joined: Jan 2005
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From: Frisco, TX
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Cargo Master
Joined: May 2002
Posts: 3,271
Likes: 229
From: Gulf Coast, FL
Just order the Power Take Off option to drain power from the alternator when the batteries are full.
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Posting Guru
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From: NorCal
Originally Posted by HeavyAssault
Just order the Power Take Off option to drain power from the alternator when the batteries are full.
So THAT'S what that means... I always thought a PTO was a Powered Torture Object...
Elder User
Joined: Jul 2004
Posts: 756
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It's already been said enough, but it'll be just fine.
If you get the PTO option: make sure you turn it off first before you turn off the truck, or else all the power will be taken off when you try to restart and you will be stuck with a dead truck.
If you get the PTO option: make sure you turn it off first before you turn off the truck, or else all the power will be taken off when you try to restart and you will be stuck with a dead truck.