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Old 12-10-2018, 07:10 PM   #1
futureforester1
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Member#: 494576
Join Date: Nov 2018
Default Best battery +2015 WRX?

Help? What battery should I get - Deka AGM or Costco Interstate Flooded Lead Acid battery? I hear that a modification is required with the AGM due to the voltage issues with the alternator?
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Last edited by futureforester1; 12-10-2018 at 07:28 PM.
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Old 12-10-2018, 07:14 PM   #2
rich3389
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Member#: 207322
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Quote:
Originally Posted by futureforester1 View Post
Help? What battery should I get - Deka AGM or Costco Interstate Flooded Lead Acid battery?
Both will serve you well.
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Old 12-19-2018, 01:37 AM   #3
dictoresno
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Member#: 139816
Join Date: Feb 2007
Chapter/Region: Tri-State
Location: NJ
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2019 Impreza
White

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I've only used and trusted interstate. I recently had one finally give up after 7 years of ownership since new...two years longer than its rated lifespan.
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Old 12-19-2018, 09:35 AM   #4
pacmantravis
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Join Date: Dec 2015
Location: Charlotte, NC
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2015 WRX
WRB

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I have an Optima Red top in mine -- Picked it over the yellow top for cold cranking capability.
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Old 12-19-2018, 12:29 PM   #5
Mulder
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Chapter/Region: Tri-State
Location: NYC
Vehicle:
02 RAV4 MT
15 WRX/05 GTO

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"Best" anything will always be subjective depending on one's individual priorities and needs. For me it was an AGM with lots of cranking capacity and a good warranty so the '15 got a Bosch group 35 AGM. My GTO has one as well, and if/when the Red Top in the '02 finally poops out (coming up on 11 years) it will be time for #3.
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Old 06-25-2019, 11:21 PM   #6
achaurey
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Member#: 503617
Join Date: Jun 2019
Location: Washington, DC
Vehicle:
2016 WRX 6MT Limited

Default Tomioka battery - TR-B1500

Has anyone used a Tomioka racing battery? Considering the TR-B1500 for my 16 WRX. On paper it seems much better than stock at 465 CCA and 15 lbs.

https://www.tomiokaracing.com/collec...weight-battery

https://www.tomiokaracing.com/produc...m-mounting-kit
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