Quote:
Originally Posted by Ocsmb
Hey Dave, I have a weak house battery. Doesn't hold a charge. Most the time hovers below 10 volts.
Is there a way to have the alternator automatically charge the start battery until it's topped off and then charge the house battery?
|
As a normal automatic operation as part of the 7622? Not that I know of. Maybe Greg can chime in here. The separator will open to protect the alternator/start battery as soon as the the house battery drops below 12.8 and the H-battery will begin to self discharge. The bad thing is when the alternator or shore charger are working, either one of them will send enough charge voltage to close the separator and try to bring the house battery back up. A bad battery can do a few things you really don't want to see:
>>maxing out your alternator.
>>pulling battery reserves from the starting battery system
>>cause the house battery to heat up
>>a catastrophic battery failure from a high amp shore charging sessions can cause a bad battery to catch fire.
In my case, I left the shore charger on and it kept pumping power into the bad battery. The separator stayed closed all night long and in the morning one of my starting batteries was huffing and puffing. It was so hot I could not touch the battery box. I soon learned the weird panel readings I was seeing for the last few weeks was an indicator something was wrong.
I'd suggest you install the 7622 and lock open the separator until you replace the battery.
Hope this helps