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post #3 of Old 07-10-2008
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I'd have to disagree. If you've got an ACR, it really does little to prevent or prohibit you from draining down your start battery. You really need to read about the capabilities of the ACR again. You're attributing capabilities to it that it simply does not have.

If the main battery switch is in the ALL or BOTH position, whatever loads you have on the system will draw down BOTH BATTERY BANKS. THE ACR CAN'T PREVENT THE RESULTS OF USER ERROR.

All an ACR does is eliminate the need to put the Main Battery Switch into the BOTH or ALL position to charge both battery banks when a charging source is present. It does not prevent batteries from being discharged if you have the battery switch set incorrectly—it merely reduces the possibility of that occurring by removing the need to change the setting on the switch from the 1 or 2 position to the BOTH or ALL position to charge both banks, and since you don't change to the BOTH or ALL position, you don't have to remember to change back when not charging.

The newer, more compact squarish ACR will sense charging level voltages on either bank and combine if it is detected. The older, longer retangular one would detect a charging source on the primary bank and connect both banks for charging when a charging level voltage was detected, but needed an optional "sense" wire connected to do so for both banks.

Originally Posted by artbyjody View Post
Now if you are severely depleted, the cool thing about an ACR is that it will prohibit usage of the cranking source in luie of say amping out your stereo for some fireworks display... to be used..


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Telstar 28
New England

You know what the first rule of sailing is? ...Love. You can learn all the math in the 'verse, but you take
a boat to the sea you don't love, she'll shake you off just as sure as the turning of the worlds. Love keeps
her going when she oughta fall down, tells you she's hurting 'fore she keens. Makes her a home.

—Cpt. Mal Reynolds, Serenity (edited)

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Last edited by sailingdog; 07-11-2008 at 08:23 AM.
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