4 years. Dead. I let them run dry.
Looking at the life line battery's, $259. ea. best price I can find.
Lifeline GPL-4CT Battery Price
I can't see paying this much for battery's. I know, no maintenance, but still,
$1550.00 vs. $550. for interstate wet cells.
I am not cheep, but I cant see the math on this one. The Life line would have to last 12 years. OK, 10, give a little for the convenience
I still need help to find auto fill cap replacement parts.