i was driving home from the bank the other day and got the Gearbox Fault message then the ABS Fault message. the Rover decided that 3rd gear was the only gear it wanted to use for the remainder of the drive. well, at least, that's what it felt like.
shortly after this, the HVAC shut off and the the HVAC screen went blank. we decided the best course was to turn off the radio and all other electrical sundries and continue on since we were moments from home.
pulled into the driveway, parked the car, and then shut it off and tried to restart. nothing but clicks. easy enough. figured it was a dead battery and we had made it home on the alternator and a prayer. the last statement shows both my limited knowledge of a car's charging system and my utilitarian view of spiritualty. i am currently working to rectify one of those short comings.
did a little research and decided to pull the battery and throw it on the charger. the next day i installed the recharged battery and fired up the Rover. it started but sounded a little weak. still, it was running and that was good. i pulled out my tester and probed the battery while the Rover was running. 11 volts. that's not good. 10 volts. dammit.
a couple of minutes later the Rover shut off on its own.
while i was initially leaning towards a bad battery, now i'm thinking that the alternator may be bad.
if the alternator is bad that could have ruined the battery, as well. right? i'd hate to purchase, install and ruin a second battery if the alternator is bad.
would a good alternator allow a Rover to run even with a bad battery?
would a good alternator allow a battery to drain while the Rover was running or would it hold whatever charge there might be?