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Question about the RDX battery?

 
Old 05-23-2019, 03:38 PM
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Question about the RDX battery?

What is the capacity of the battery? With all the electronics in this vehicle i fear the battery dying on me. In my 05 TL it happened a few times, so this is something that worries me.

I figured out how to turn the screen off and i shut off the lights as soon as I turn the car.
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Old 05-23-2019, 04:46 PM
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Unless your battery is dying, this is not something to worry about.
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Old 05-23-2019, 04:56 PM
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It is an H6 AGM.

It is big. Powerful. And will be expensive to replace.

oK?
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Old 05-24-2019, 08:00 AM
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Thanks Madd Dog, and I think I read somewhere that it is a pretty Heavy Duty Battery due to the Auto Stop feature as it is constantly starting the car. I do not think you can replace it with just any old battery.
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Old 05-24-2019, 08:04 AM
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^well, AGM's are getting common place...
Be sure to replace it with an AGM and not a flooded battery.
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Old 06-02-2019, 09:54 PM
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Originally Posted by lil12002 View Post
What is the capacity of the battery? With all the electronics in this vehicle i fear the battery dying on me. In my 05 TL it happened a few times, so this is something that worries me.

I figured out how to turn the screen off and i shut off the lights as soon as I turn the car.
Don't worry about the battery, it will be fine. Understand that all those electronics in that car go into a "sleep" mode when you shut down. They will not be draining the battery. I have let my RDX sit for several weeks at a time while I am away or am driving our "around town car' (Honda Fit) and the battery never misses a beat when I go to start the car. Its a non-issue.
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Old 06-02-2019, 10:16 PM
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I never had an AGM battery before. Anybody know the warning signs, or are they pretty much the same as any other battery? I learned a long time ago it's better to replace a battery a few months too early than a day too late.
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Old 06-03-2019, 11:53 AM
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Modern batteries tend to fail with little or no warning. For years, Honda's FLA batteries have been known to die as early as 2-3 years. Honda began using AGM batteries in the Pilot in 2015. There have been a few reports on a Pilot forum of them suddenly dying after 1-2 years.
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Old 06-03-2019, 03:25 PM
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This sized AGM costs more than 200 bucks.

If anyone intends to put it on a battery tender, make absolutely sure the tender says, right on it, that it is for an AGM.
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Old 06-04-2019, 12:26 AM
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Originally Posted by zroger73 View Post
Modern batteries tend to fail with little or no warning. For years, Honda's FLA batteries have been known to die as early as 2-3 years. Honda began using AGM batteries in the Pilot in 2015. There have been a few reports on a Pilot forum of them suddenly dying after 1-2 years.
AFAIK Honda started using AGM batteries in the 2016 Pilot ( production started May/June 2015 ), and only in the upper trims that were equipped with the 9-speed ZF transmission and auto idle stop. ( I had one ). It's the frequent start/stop cycles of the idle stop system that require the AGM battery. Same deal with our RDXs. There is also an actively ventilated ( ducted and fan-cooled ) enclosure for the battery to mitigate battery overheating from frequent engine starts and subsequent rapid recharging.

But unless the battery is "deep cycled" by running the audio for hours with the engine off, the greatest risk to the battery may be frequent activation of the idle-stop system in stop-and-go traffic. Starting the engine draws much more current than running the electronics.
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Old 06-04-2019, 03:07 AM
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Originally Posted by Madd Dog View Post
This sized AGM costs more than 200 bucks.

If anyone intends to put it on a battery tender, make absolutely sure the tender says, right on it, that it is for an AGM.
Get your Deltran Battery Tender Power Plus 3 Amp Charger at Costco for $39.99.

Product details have been supplied by the Manufacturer, and are hosted by a third party.


Always Ready To Go

with Battery Tender 3 Amp SuperSmart Battery Charger® & Maintainer.



The Battery Tender® Power Plus is a 3 Amp battery charger that will fully recharge and then maintain a battery at its proper storage voltage without the damaging effects caused by trickle chargers. A higher output (3 amps) than the original Battery Tender Plus for a quicker recharge on Automotive, Marine, and Power Sport batteries combined with the automatic switch to maintenance mode makes this unit very versatile. It is an ideal charger for everyday charging use or long-term storage and maintenance. Ideal for AGM, Flooded, and Gel batteries.

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Old 06-04-2019, 06:42 AM
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Originally Posted by Wander View Post
AFAIK Honda started using AGM batteries in the 2016 Pilot ( production started May/June 2015 ), and only in the upper trims that were equipped with the 9-speed ZF transmission and auto idle stop. ( I had one ). It's the frequent start/stop cycles of the idle stop system that require the AGM battery. Same deal with our RDXs. There is also an actively ventilated ( ducted and fan-cooled ) enclosure for the battery...
Correct on the model and production years and specific Pilot trim application.

Also, all current-generation Pilots, Ridgelines, Odysseys, and Passports have a ducted battery box with a cooling fan like the RDX - even those without auto stop and AGM batteries. The Accord with the similar 2.0T/10AT as the RDX does not.

Curiously, the battery cooling fan in these applications is not monitored, so a fan failure will not result in any lights, messages, or DTC's - decreased battery life would likely be the only symptom if the fan stopped working.
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Old 06-04-2019, 07:41 AM
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It would like to see lithium ion car batteries come on line at a reasonable price.
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