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Battery longevity

1478 Views 8 Replies 7 Participants Last post by  Spam16v
My setup is as follows:

Pioneer AVH-P4100DVD
2007 OEM battery
OEM amp
OEM sub
OEM speakers

My battery has not exhibited any signs of weakness and the last time I took it to the dealer for an oil change, they checked the battery and it was good.

My question is this; my new HU can play DVD's and I was wondering approximately how long I can watch a DVD with the car NOT running? I know this is a subjective question, but I was just wondering from a hypothetical point of view based on the power required to run the system.

I'm definitely not an electronics expert, but would adding a capacitor to my system give me additional time?

Advice appreciated!
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I just took my wife's 2007 CR-V to dealer for oil change & trans oil change at 30k. They actually did a free battery test during service, & found out battery is lower than spec cold cranking power. I got a new 100 month warranty Honda battery under warranty.

CR-V never had any cranking problem, included starting in cold winter morning.
But I won't complain about a brand new $127 100 month battery under warranty. ;-)

Battery crank power test at dealer is going to be part of my 30K maintenance check list for my 2009 E. Hopefully I could get a new battery at that time also.
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