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Bigger battery for Honda Element

I’ve always wished j had a bit more battery capacity in my 05 Honda Element. The stock battery had 410cca and 500 peak amps, group size 51R? After four years it was starting to occasionally have a hard time starting the car, and If I left the lights and radio on for even 20 min or so, I may have a hard time starting the car. So at that time I had the battery replaced with an interstate pro series with 500cca and 650 peak amps, also a series 51R, which in recent days has started to really show its age. This winter has had a couple of instances where the battery barely would start the car on a cold morning. So I decided to do a complete transplant. The following images detail my replacing the interstate battery with a group 35 battery from Costco: 650cca and 800 peak amps.
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Interstate battery still installed.

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Old group 51R battery and new Costco group 35 battery.

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After removing the old battery I had to bend back the ears of the battery tray so that the new battery would sit properly on the tray.

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New battery sitting on battery tray.

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New battery secured with an adjustable battery tie down and new 12inch j-hooks: both available from your local auto parts store, less than $15 total.

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I cut down the top of the j hook closest to the front of the engine compartment with a hack saw to prevent it hitting the hood.

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I used a baking soda and water solution to scrub the corrosion off of the battery contacts before connecting the new battery.

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Battery is finally all installed and ready to go! Total install time was about 30min or so, and I spent less than $100 on the entire project.

2 comments

1 Six { 07.08.14 at 11:31 pm }

Hey, bub. I just finished this mod on my 03 Element EX 20mins ago. Your write up here was instrumental & I wanna thank you for posting it. I stumbled upon it while googling research for the project. I spent a lil extra & bought an Optima Yellow Top battery & anodized battery tie down but your post gave me the confidence to do the upgrade. Thanks again.

2 AJ { 01.10.17 at 12:16 pm }

Hey, thanks for the pics.

just wondering if you used a plastic battery tray or did you put the battery on the metal. Thanks

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