What's the highest voltage I can give a SAE-1000D and SAX-100.4? I'm giving them between 13.8 and 14.2 volts in park before voltage drop and the lowest I've seen it drop is 13.2 volts while playing at max. I'm considering a voltage regular for my EA 250A alternator. I may be adding another 1000D btw.

Edited April 21, 200817 yr by themerc

~15 volts or so is the tops.

Most "12v" car batteries won't be happy charged over 14.7 volts, at least not AGMs

Okay Nate said the highest he would go is 15.5v at the alternator. I have a size 65 Duralast Gold and two Kinetik HC1800's. What do you think a good setting at the alternator would be?

Okay Nate said the highest he would go is 15.5v at the alternator. I have a size 65 Duralast Gold and two Kinetik HC1800's. What do you think a good setting at the alternator would be?

14.7 volts.

A big warning came in my Powermaster batteries not to charge over 14.7 volts, as an FYI.

contact Kinetik to be sure but i thought you couldnt charge theirs higher than 14.4?

The less voltage one can handle max means one of 2 things-

1- it's float voltage is lower than a typical agm battery or

2- it's internal resistance is lower than other batteries.

Bah. If 14.4v is max, then I'm not sure I'm going to bother. When I start it up cold I get 14.2v, then it usually drops to 14.1 or 14.0 after a while.

Alright if my Duralast sits at 12.6v and the Kinetiks at 13.1v and they're all wired in parallel, do you think the Duralast is bringing my voltage down?

If so I was thinking about switching the Duralast to a Kinetik HC800. Does that sound like a good idea?