Quote:
Originally Posted by Dynomite
I have always disconnected the negative battery terminal if the vehicle is expected to sit for a couple weeks. I am now going with this battery disconnect. Always have full battery power even after a couple months of battery disconnect. No messing with having to have electrical power and hood open or partially closed and no concern about electrical shorts when sitting with power connected (and electrical cords) for a while.
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Sulfation: While disconnecting the battery will prevent parasitic discharging, due to "keep alive" loads, etc, the discharging as result of internal chemical interaction between the electrolyte and the lead plates (sulfation) will continue even if the battery is disconnected. (Google Sulfation of lead acid batteries for more details)
So,
for best results, it is best to use a Battery Tender (or the like) to keep the sulfate from being able to form in the first place.
Just sayin...
