True, to some extent, when talking about a DEAD battery. But I will say that I have used a lighter duty Battery Tender in the past that I put on batteries that just could not bring them up to full charge, whereas the one I pictured above can do that with no sweat. So the current supplying capabilities of a particular battery trickle charger does seem to make a difference in how effective it is for a battery that has gone WEAK on you.
__________________
|