i just swapped out my THIRD bad redtop. get yellow, be done with it.
First, stopped charging. (possibly my fault for letting it die a few times.

) lasted about 3 years
Second, battery terminal MELTED. reason unknown, approx 1.5 years
Third stopped charging, never got above 11.3V (~6 months old)
I've heard many other stories about faulty redtops, too.