If you are having problems, I suspect that the remote starter is the likely issue. I have an aftermarket remote starter/alarm on my 1996 B3000...2 way Compustar was installed about 9 years ago by a local car audio shop. My battery, replaced in June/July 2011, won't start after the truck is parked for up to a couple weeks. Charging system was checked in the summer too...no problem identified. Now I have an intelligent trickle charging system on it. Probably won't put on a remote starter in my future vehicles...not worth the problem or expense IMO....rather put in 100% synthetic oil to make it start easier in the cold.
Already on the second remote...1st one died after 5-6 years of use.
2010 Ford Ranger FX4
Armaguard sprayed on bed liner
Truxedo Low Pro QT tonneau cover
Studded General Altimax Arctic P245/75-16 winter tires on black steelies