OEM Updated Canadian Battery - 2016 - 2018 Civic (All models)

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  1. 250GTCalifornia

    250GTCalifornia Senior Member

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    #1 250GTCalifornia, Sep 7, 2019
    Last edited: Sep 7, 2019
    I should say all models except for the Hybrid.

    I wanted to change my battery before winter. I tried Costco and Canadian Tire group 35 batteries, but my stock battery hold downs wouldn't fit. I didn't want to bother buying a bunch of extra parts to make it fit, So I figured I'll just buy it from Honda.

    To my surprise they upgraded the batteries. OEM (31500-TBA-A01) used to be 550 CCA. Now (31500-TBA-H650) it's 650 CCA. The battery was built 7/19, so it's fairly new.

    image1 copy.jpg

    Check out under Civic 2016 - 2018. Group 47, 650 CCA, 800 CA, 100 RC.

    image2.jpeg

    Old vs New.

    So, if you want to change your battery before winter get the new part number.

    One question I had.. Maybe @charleswrivers can answer.. it came with a 90 degree elbow vent and a vent plug. Do I need to install this or can I just leave it alone? I only saw one vent and it's there on the top near the handle, but it was already blocked.
     
  2. charleswrivers

    charleswrivers Senior Member

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    Just eyeballing the picture... if that's a hole going into the cell... yes. I'm not sure if that's a flooded or AGM battery. AGM battery's vents are integral to them being sealed but having a relief path so you don't swell the jar if pressure gets too high... but keep the H2 and O2 inside the cell so O2 recombination cycle works. Otherwise, the cell will gas and since they're not made to refill, the capacity will immediately fall out. If it's flooded... it's probably acting more as a vent path/flash arrestor. Flooded batteries will gas and can (should) get refilled with distilled water occasionally... especially if you live in a hot enviroment. If the electrolyte level drops below the top of the plates, you're no longer using the full surface area of the plate and the current capacity (cranking amps) is dropping and the lead because less usable even if you re-immerse it from it's exposure to air.

    I'm honestly not familiar with removable vents on automotive batteries, only big marine ones. Still, it if came with a vent, it should be used.
     
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    250GTCalifornia

    250GTCalifornia Senior Member

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    Thanks for the quick reply. Ok, I guess I'll have to figure out how to remove that plastic cover then.
     
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    250GTCalifornia

    250GTCalifornia Senior Member

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    In case anybody else reads this the vent holes are on the side of the battery near the top. There are two on each side. I read that if the battery is in the passenger compartment you should vent one and plug one, but if the battery is in the engine compartment you leave both open.

    The top clear hole near the handle is for something else. No idea what though.
     
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