Neurobit
RAM Sorcerer
Oh and that experience burned me for good. I now carry a charged battery jump pack under the rear seat just in case. Never leave home without it. How’s that for confidence in your vehicle? 

I would say if your battery has not had a problem in over a year at this point its time to regain your confidence in the truck now!Oh and that experience burned me for good. I now carry a charged battery jump pack under the rear seat just in case. Never leave home without it. How’s that for confidence in your vehicle?![]()
Just picked her up from the dealer.
They apparently recharged the battery and it held charge all day. I'm not holding my breath that it won't happen again. I don't trust that battery anymore but there was no way the dealer was going to let me walk away with a new batterybut thats a battle for another day.
Truck is back to running normal and voltage is holding at 14.2v.
ACC is the position on the ignition button...ACC stands for "Accessories"...there are 3 positions,(not counting off position)...1.ACC 2. RUN 3.StartI also have a 2009 BMW convertible. When the alternator went out, it freaked out something like you describe. I drove it about 10 miles and it shut itself down. I guess it's all the electronics cars have these days. I park it for a week or more fairly often and never use a trickle charger. The first battery lasted more than 10 years.
I agree with the others who say you have a bad battery. But if somebody doesn't figure out what is killing the battery the next one will fail too. I do not understand your reference to "ACC". Are you saying the air conditioner? Is it the large load killing the battery? Dropping the voltage to under 11 volts with the engine running is a really large load.
I had a parasitic load issue on a different vehicle years ago. I got a relatively cheap multimeter at Walmart that would read current - but low levels of current. I was able to see the current draw even with everything off and then pull fuses until it went away. It was the radio circuit, however, and my daughter wanted her radio to work. So I replaced her battery and the car ran as long as she needed.
You still need to make sure there's not a drain on the battery from something not shutting down.Thank you for the replies fellas! I ended up buying a battery at AutoZone yesterday and guess what? Truck is running perfect!
I'll be making a trip to the dealer and I'll be dammed if I don't get a new battery.
Sometimes they do this because if there is a bad parasitic drain on the battery and they dont find it, it will just keep killing batteries until they find the cause.I had somewhat of a simular issue, for some crazy reason they will spend hours on RAM warranty money on electrical and refuse to replace a stupid $100 battery. I just do not get it when it is common sense it IS the battery.