Battery
05-11-2017, 12:18 PM
#1
10th Gear
Thread Starter
Battery
2016 RDX Advanced
After 15 months of ownership the battery went dead. Good news it was fully covered under warranty. There was no prior warning battery was defective. For convenience I elected to replace the battery myself. Before disconnecting terminals my voltmeter read 8.5 volts. So although the battery was not totally dead nothing worked at all including door locks. I had to the key stored in the key pod to open the car door. I pulled the battery the night before and went to the dealership the next day. Because I didn't have the car with me I had to buy the battery outright from the parts department and later that day when I returned with the car I was refunded the full amount. I was told if the dealer installed the battery there would be a charge but since i did the work this did not apply. I was also concerned since the car sat for over 12 hours with no battery at all that I would lose access to the radio, Navigation and Sirius. To my surprise when I installed the new battery a message came up on the radio that said to depress the on button for two seconds and let the card run for ten minutes to automatically reconnect the radio and navigation systems. After doing this everything reset to what it was before the battery died. The preset radio stations were restored, Nav, Sirius, one touch window and sunroof opening, all returned. Also the maintenance reminders were also restored as before. The only thing that did not restore was the trip reminder settings.
.
After 15 months of ownership the battery went dead. Good news it was fully covered under warranty. There was no prior warning battery was defective. For convenience I elected to replace the battery myself. Before disconnecting terminals my voltmeter read 8.5 volts. So although the battery was not totally dead nothing worked at all including door locks. I had to the key stored in the key pod to open the car door. I pulled the battery the night before and went to the dealership the next day. Because I didn't have the car with me I had to buy the battery outright from the parts department and later that day when I returned with the car I was refunded the full amount. I was told if the dealer installed the battery there would be a charge but since i did the work this did not apply. I was also concerned since the car sat for over 12 hours with no battery at all that I would lose access to the radio, Navigation and Sirius. To my surprise when I installed the new battery a message came up on the radio that said to depress the on button for two seconds and let the card run for ten minutes to automatically reconnect the radio and navigation systems. After doing this everything reset to what it was before the battery died. The preset radio stations were restored, Nav, Sirius, one touch window and sunroof opening, all returned. Also the maintenance reminders were also restored as before. The only thing that did not restore was the trip reminder settings.
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Skidoor (05-11-2017)
05-11-2017, 02:11 PM
#3
Stay Out Of the Left Lane
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Don't know about the original battery as I bought the car as a CPO and just shy of two years.
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justnspace (05-11-2017)
05-11-2017, 08:48 PM
#5
Pro
OEM batteries vary a lot. I had a 1998 Pathfinder that did just what your RDX did and suddenly died in a parking lot after being fine a hour before. It was diagnosed as a bad cell. MY 06 Z4's OEM battery lasted 6yrs and I am on my original battery in my '11 Tacoma. I think today's cars put a lot more strain on their batteries with all the electronics.
Last edited by chickdr; 05-11-2017 at 08:53 PM.
05-14-2017, 12:08 PM
#6
Burning Brakes
When you say "it sat for 12 months with no battery at all", do you mean with a dead battery installed or with the battery removed?
In any case, you should have had a battery maintainer connected to the battery while the car wasn't used.
05-14-2017, 12:40 PM
#7
10th Gear
Thread Starter
You misread my original post.
I owned the car for 15 months and was purchased new off the lot. I use the car every day and had driven it about 2 hours before battery went dead. Battery was removed from car for around 12 hours before a new one was installed..
I owned the car for 15 months and was purchased new off the lot. I use the car every day and had driven it about 2 hours before battery went dead. Battery was removed from car for around 12 hours before a new one was installed..
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05-14-2017, 01:10 PM
#8
Burning Brakes
I wonder who makes the battery for Acura? There may be dozens of different labels on batteries in various stores, but there are only a few battery manufacturers that produce them.
Next I am wondering what the voltage cut-off is from the alternator's voltage regulator. On our 1990 Toyota and 1999 Honda, it was a perfect 14.4V at the spec'd ambient temperature.
I have a paper titled "Honda's Dual-Mode Charging System" that I have yet to read to see what that is all about. I am retired and no longer keeping up to date.
BTW, I got 16 and 15 years out of the original batteries in the vehicles above.
05-16-2017, 12:42 AM
#9
2016 RDX Advanced
After 15 months of ownership the battery went dead. Good news it was fully covered under warranty. There was no prior warning battery was defective. For convenience I elected to replace the battery myself. Before disconnecting terminals my voltmeter read 8.5 volts. So although the battery was not totally dead nothing worked at all including door locks. I had to the key stored in the key pod to open the car door. I pulled the battery the night before and went to the dealership the next day. Because I didn't have the car with me I had to buy the battery outright from the parts department and later that day when I returned with the car I was refunded the full amount. I was told if the dealer installed the battery there would be a charge but since i did the work this did not apply. I was also concerned since the car sat for over 12 hours with no battery at all that I would lose access to the radio, Navigation and Sirius. To my surprise when I installed the new battery a message came up on the radio that said to depress the on button for two seconds and let the card run for ten minutes to automatically reconnect the radio and navigation systems. After doing this everything reset to what it was before the battery died. The preset radio stations were restored, Nav, Sirius, one touch window and sunroof opening, all returned. Also the maintenance reminders were also restored as before. The only thing that did not restore was the trip reminder settings.
.
After 15 months of ownership the battery went dead. Good news it was fully covered under warranty. There was no prior warning battery was defective. For convenience I elected to replace the battery myself. Before disconnecting terminals my voltmeter read 8.5 volts. So although the battery was not totally dead nothing worked at all including door locks. I had to the key stored in the key pod to open the car door. I pulled the battery the night before and went to the dealership the next day. Because I didn't have the car with me I had to buy the battery outright from the parts department and later that day when I returned with the car I was refunded the full amount. I was told if the dealer installed the battery there would be a charge but since i did the work this did not apply. I was also concerned since the car sat for over 12 hours with no battery at all that I would lose access to the radio, Navigation and Sirius. To my surprise when I installed the new battery a message came up on the radio that said to depress the on button for two seconds and let the card run for ten minutes to automatically reconnect the radio and navigation systems. After doing this everything reset to what it was before the battery died. The preset radio stations were restored, Nav, Sirius, one touch window and sunroof opening, all returned. Also the maintenance reminders were also restored as before. The only thing that did not restore was the trip reminder settings.
.
05-16-2017, 05:38 AM
#10
Burning Brakes
I took a few measurements yesterday.
Battery voltage after a day, engine off: 12.53V. That is a bit low, but may be that because I have been sitting in my new Acura RDX in Accessory Mode programming the radio and getting familiar with some features.
Battery voltage with the engine idling with no accessories selected: 14.28V at 20C (68F). That is fine and a good charging voltage.
Battery voltage after a day, engine off: 12.53V. That is a bit low, but may be that because I have been sitting in my new Acura RDX in Accessory Mode programming the radio and getting familiar with some features.
Battery voltage with the engine idling with no accessories selected: 14.28V at 20C (68F). That is fine and a good charging voltage.
05-17-2017, 07:36 AM
#11
This seems to be a trend, the battery in my Subaru was also a very weak battery. Its worth noting that the car had a "cold weather package" which included headed everything but not a battery that would survive an extreme cold scenario.
So i guess its not just acura.
So i guess its not just acura.
05-26-2017, 08:12 PM
#13
Intermediate
Perhaps I've been lucky - I've found that Honda/Acura batteries last until mid-winter of the third year of ownership when they die quickly and often inconveniently. On my current RDX it was a month after the dealer service organization stated that it was "good" on the multi-point check.
05-30-2017, 11:33 AM
#14
Burning Brakes
Does anyone know makes the battery for our Acura RDX? Where did you get that info as I didn't see it on the label.
Last edited by Tech; 05-30-2017 at 11:38 AM.