Hi all, maybe you can help, I have read the manual about our 09 intelli charger, & am wondering if one week per month would be sufficient to keep my batterys charged & in good shape thru the winter. or do you leave it on all the time & let it do its thing. I like how it will work at preserving the life of the battery's with the desulfation period . One note, it is fairly mild here in the Northwest.