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Trickle Charge

1.9K views 3 replies 4 participants last post by  jaybee  
#1 ·
This is such an obvious idea that I'm sure it must have been raised before.

Anyway, my question is: for those of us that live in colder climates and use engine block heaters, what would be the down side to installing a trickle charger on the same 110v supply which keeps the battery as well as the block happy in sub-zero temperatures overnight?
 
#2 ·
I can't think of any negative effect it may have. Do some batteries freeze at a certain temperature? I can imagine the slight charge might help keep it from freezing.