Boosting voltage?
Fleet Mechanic
Joined: Feb 2011
Posts: 1,812
Likes: 88
From: Thousand Oaks, CA
If voltages get much higher than 14.5 the battery starts to get cooked.
Do you mean you need more amps?
The stock alternators for the V10 are 110 or 130 amps.
There are 200 amp or more alternators available.
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Elder User
Joined: Oct 2013
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Its for car audio reasons and i want to get 15v. 15v is safe for batterys. And i can get custom 370a ones but i what higher voltage for more watts.
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Elder User
Joined: Oct 2013
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Really? I figured the gassers where the same as the Diesel electrical system
Super Moderator
Joined: May 2004
Posts: 29,380
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From: Central Coast of CA
Plus, the rule of thumb is you don't want over 14.7/8 volts. Long term it will shorten the life of the system, to include the batteries.
Get a good capacitor for your sound system.
Stewart
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Logistics Pro
Joined: Jan 2007
Posts: 3,836
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From: Martinsburg, WV
15 volts is NOT save for 12v automotive batteries over the long haul. Even the AGM's don't like it. Anything over 14.5 and things start getting hot. And the capacitor may not even help depending on your needs. You probably need more batteries if you are talking serious power needs.
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Elder User
Joined: Oct 2013
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Caps are a joke unless u are running the bigger ones like 50-60f. I have run 15v+ daily for years in my comp vehicles and no problem. I even had 8 optima red tops and they were fine at 15.2 for the 4 years they were in there and even fine when i sold them all
Cargo Master
Joined: Oct 2006
Posts: 2,097
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From: chicago northwest suburbs
I would run a dedicated RV/Marine deep cycle battery for the sound system. Even if you have someone do some mods to the alternator to put out more voltage, the PCM will not let it charge that high.
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Elder User
Joined: Oct 2013
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15 volts is NOT save for 12v automotive batteries over the long haul. Even the AGM's don't like it. Anything over 14.5 and things start getting hot. And the capacitor may not even help depending on your needs. You probably need more batteries if you are talking serious power needs.
Super Moderator
Joined: May 2004
Posts: 29,380
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From: Central Coast of CA
I changed the alt in my daughters F250 and something like 4 months later the regulator went wonky and it started overcharging at 15.8v (as determined by a plug in volt meter in the dashboard power point and double-checked with a multi-meter on the battery with the engine running) and caused the battery/charge light to illuminate on the dash as well as other electrical problems.
Stewart
Last edited by Stewart_H; Aug 3, 2015 at 04:41 PM.
Wiser by FTE
Joined: Jan 2010
Posts: 2,837
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Here is the external, adjustable voltage regulator you are looking for; External Adjustable Voltage Regulator - Mechman Alternators
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