I recently purchased a used Micrologic ml250 GPS to use as a backup GPS on
my boat. After receiving it, I realized that the internal lithium battery
was dead. I wanted to have it replaced, but Micrologic is out of business.
I've done some reading online and discovered that it's not terribly
difficult to replace them yourself, and that there is a fix out to prevent
the battery from prematurely draining in about a year as compared to 7 years
that Micrologic advertised.

I understand that the fix is pretty simple as well. You just need to
un-solder a connection to one of the chips. Does anyone have the details of
this operation? Which connection needs to be un-soldered?


Thanks!

Robert