Power usage - Civinfo
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post #1 of 9 (permalink) Old 29th May 2017, 10:34 Thread Starter
 
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Power usage

Hi guys,
something my dealer said when I picked up my Sport+ that i'd like your view on...

He said not to run the stereo on accessory mode as it would drain the battery in around 10 mins. Really doesn't add up to me.
The battery in the 1.5 is bigger then my old gen8 1.8 (I used the stereo on accessory mode a lot on it). Ok, the header on this model has a large tft and the high output amp etc, but 10 mins, really? If you had absolutely everything known to man in the car turned on, ok...
My head says if that were the case why would Honda give an accessory mode and why isn't it mentioned in the manual.

Any input appreciated!
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post #2 of 9 (permalink) Old 29th May 2017, 11:17
 
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Quote:
Originally Posted by cunningPlan View Post
Hi guys,
something my dealer said when I picked up my Sport+ that i'd like your view on...

He said not to run the stereo on accessory mode as it would drain the battery in around 10 mins. Really doesn't add up to me.
The battery in the 1.5 is bigger then my old gen8 1.8 (I used the stereo on accessory mode a lot on it). Ok, the header on this model has a large tft and the high output amp etc, but 10 mins, really? If you had absolutely everything known to man in the car turned on, ok...
My head says if that were the case why would Honda give an accessory mode and why isn't it mentioned in the manual.

Any input appreciated!
I run mine for 3/4 of a hour regularly with no problems . it will auto switch off before it flattens the battery anyway .

Last edited by Nowell; 29th May 2017 at 11:23.
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post #3 of 9 (permalink) Old 29th May 2017, 14:18 Thread Starter
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Nice one, thanks for that Nowell!
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post #4 of 9 (permalink) Old 29th May 2017, 14:40
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Yes I think they are being a bit cautious. Most cars have a one hour mode for radio etc. And modern electronics know when to turn something off if battery getting a bit low.

Edit, Just read above post..
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post #5 of 9 (permalink) Old 29th May 2017, 17:02
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If your stereo would be able to drain a 12V 60 Ah (?) battery in just 10 minutes, it'd mean that it uses 4320 W. Even when it would just be a tiny 10 Ah battery, you'd end up with 720 W.

So just no, if your stereo is able to drain your battery in 10 minutes, your car wouldn't start anymore and the battery needs to be replaced.
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post #6 of 9 (permalink) Old 29th May 2017, 17:21
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i know my old accord didnt last long if you sat with radio on and no engine running
but it was more than 10 mins
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post #7 of 9 (permalink) Old 1st June 2017, 19:07 Thread Starter
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thanks for your feedback all, much appreciated
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post #8 of 9 (permalink) Old 1st June 2017, 19:40
 
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Quote:
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thanks for your feedback all, much appreciated
If you have the My Honda Connect Dongle installed to your car you can check the vaults of your battery on your smartphone .
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post #9 of 9 (permalink) Old 2nd June 2017, 08:16
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If you have the My Honda Connect Dongle installed to your car you can check the vaults of your battery on your smartphone .
haha yeh, the returned voltage seems to drop after a run rather than increase.
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