I agree completely. Four years of service is about right. Simple, and
straight answer. Well done, sir!

--

Christopher A. Young
You can't shout down a troll.
You have to starve them.
..

"Jim" wrote in message ...
To answer based on the subject line only:

Our family has used the rule of 4 winters of use living in
the northern half if the USA. Beyond that the battery may
work but one never knows for how long. Simply easier to
pick a warm comfy day to change it out on my schedule, not
waiting until it has failed.

Any money wasted on a earlier than needed replacement offset
my not needing a tow later on.