Gen5: Replacing the original battery with BETTER - Subaru Outback - Subaru Outback Forums
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post #1 of 779 (permalink) Old 12-09-2016, 08:07 AM Thread Starter
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Gen5: Replacing the original battery with BETTER

Has anyone replaced the OEM lame battery with a better one?

Was doing some work on our 3.6 and after 2 hours with the dome lights on (yes, my fault for not shutting off) a dead battery quickly ensued. While charging I saw it had all of 490 CCA, which to me says it may be weak and underpowered. Just replaced battery in my older Legacy with whatever Sears unit Consumers liked. Something like 700 CCA and, I perhaps wrongly assume, has more capacity. About $100. The battery tray has ample room it would seem.

Anyone dump the factory battery for a bigger and, I hope,, better one? If so, why? What did you get?

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post #2 of 779 (permalink) Old 12-09-2016, 08:17 AM
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post #3 of 779 (permalink) Old 12-09-2016, 08:17 AM
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Yes, many have.
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post #4 of 779 (permalink) Old 12-09-2016, 08:30 AM
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If you do a search here, there's a ton of posts about dead batteries. Search for "dead battery" or see this huge post about it.

I bought my Outback last week and on Monday I replaced the battery with an Optima Red Top 25. Did the replacement at Autozone. As bad as the battery is for the 6 cylinder, it is even worse for the 4 cylinder (just 365 CCA).

More Info about Optima Red Top 25 at Amazon

As for why, the stock battery - despite being new - barely started the car when the headlights were in "auto." And this is in a semi-heated garage. Didn't take a genius to figure out that starting in cold weather was gonna be iffy, at best. Plus, I didn't want to worry about having a dead battery in the remote locations I like to visit.

New battery = one less problem at inopportune times to worry about.
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post #5 of 779 (permalink) Old 12-09-2016, 09:05 AM
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Is there anything special that needs to be done after replacing a battery like radio codes, etc.?

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post #6 of 779 (permalink) Old 12-09-2016, 09:44 AM
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Is there anything special that needs to be done after replacing a battery like radio codes, etc.?
Nope. You might lose your saved stations, but that's about it.

Yes, replaced 2 days after we bought ours. Has 800 CCAs I believe.

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post #7 of 779 (permalink) Old 12-09-2016, 10:05 AM
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I did not loose radio presets but you I did need to reset the diver & passenger auto window. Very simple. You just manually raise halfway then back down then all the way up. Something like like. Smart move to put in a good battery. I also use a group 34 800 CCA.
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post #8 of 779 (permalink) Old 12-09-2016, 10:44 AM
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Dumped my OEM 356 CCA battery for a Group 34 Optima Yellow Top with 750 CCA. Around $200 right now at Amazon, but they periodically go on sale for around $180.

https://www.amazon.com/Optima-Batteries-8014-045-YellowTop-Purpose/dp/B000MSBUA4/

Just be forewarned, some of the Amazon distribution centers don't have a clue about how to properly pack a battery for shipment. My first battery from them arrived dented due to poor packaging. The bright side was they sent me a second battery and didn't ask for the first battery in return. That slightly dented battery works great in my Dad's workshop attached to a solar panel.
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post #9 of 779 (permalink) Old 12-09-2016, 11:03 AM
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OEM battery is working just fine for me, so no, i will not replace it until it stops doing what it's designed to do. I also dome leave the battery on for extended periods of time without the car running. Seems like common sense instead of blaming the battery. I've never had to replace the stock battery on any of the three new Subarus I've bought in the past until many, many miles down the line until it was required. No sense in wasting your money on something that's working just fine now. Sounds more like user error to me, but hey, if you've got money to burn, y all means go for it! I also have been in the habit of turning off the heater/AC/fan and heated seats before shutting the vehicle off in previous vehicles I've owned. Battery seems fine so far in the OB.
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post #10 of 779 (permalink) Old 12-09-2016, 11:13 AM
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Quote:
Originally Posted by mowcowbell View Post
Dumped my OEM 356 CCA battery for a Group 34 Optima Yellow Top with 750 CCA. Around $200 right now at Amazon, but they periodically go on sale for around $180.

https://www.amazon.com/Optima-Batteries-8014-045-YellowTop-Purpose/dp/B000MSBUA4/

Just be forewarned, some of the Amazon distribution centers don't have a clue about how to properly pack a battery for shipment. My first battery from them arrived dented due to poor packaging. The bright side was they sent me a second battery and didn't ask for the first battery in return. That slightly dented battery works great in my Dad's workshop attached to a solar panel.
When I went to the link in Amazon and entered auto info, there was an indication that this battery didn't fit. Same on the Optima website. Is this battery small/large?

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