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Thread: Battery Group Size 121R

  1. #21
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    Quote Originally Posted by patty View Post
    I hate to admit to being a "stupid" woman around cars but.... I might be. My battery is 7 years old but seems to still be okay. It is not the original - the original died after 4 months and the Nissan dealership replaced it. Should I replace it now, before winter, even though it is working fine? I feel like it must be on its last legs after 7 years, but don't want to do so if there is nothing wrong with it. To save myself a lot of grief, I'll just go back to the dealer. Sure no complaints about the one they did in 2015.
    I think it depends also on how the car is used and stored.

    My old Mitsubishi Mirage had it's original OEM battery from the factory (Built in October 2013) and I just sold it in the summer, just shy under being 9 years old, never had any issues with it, though I was expecting to, so I had a jumper pack in the car just in case!

    The car was also parked indoors in a heated garage for almost all of its life, so it had a pretty easy go of it.

    You can also get a garage to test your battery (or try buying or borrowing a battery tester) to see if it's holding a charge correctly, though if you're worried it might just be easier to replace it as they're not that expensive in the grand scheme of things car wise!

    Temperature extremes are hard on the battery, too hot or too cold and it will reduce the battery life faster, leaving the car sit unused for very long periods of time is also hard on the battery.


    Last edited by javensbukan; 11-24-2022 at 11:39 AM. Reason: Removed not required words

  2. #22
    Senior Member MrMicra2015's Avatar
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    i am also starting to worry about my 8 year old OEM battery, i'm leaning towards the 121R costco because it seems bigger capacity and cheaper? that the 96r at costco. I don't have to worry about the oem intake, because i don't have one , but the "stretching" of the + cable has me worried. has anyone installed a COSTCO 121R ?,, and how could i avoid the positive cable "stretching"?
    2015 Micra S (manual)
    no A/C /no power options/ block heater/4x 2 Ohm speakers...all factory stock in 2015
    Feb 2015 build
    9,999 purchase price + tax..no additional 1600$ because it was a 2015 purchased in 2016
    so receipt says $8,399....+1600 .... so they look good i guess...for a brand new car!

  3. #23
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    Really good information as I was just thinking of replacing the original battery on the 2015 Micra we own. Its left outside in winter even at -35. 9 years is pushing it. Now I have to decide on the multiple sizes mentioned. maybe a 96R ($180.99 +Core) though the 35/550 is cheaper (158.50 +core) at CT. A 121R is $158.99. Might try Costco. So the 99R is direct size according to the thread and hard to find.
    Last edited by GreatWhite; 08-10-2023 at 03:45 PM.

  4. #24
    Senior Member MrMicra2015's Avatar
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    i wonder if dis would help?

    https://www.aliexpress.com/item/4001116436253.html


    or dat

    https://www.aliexpress.com/item/1005...21711912388%21



    im leaning to dat


    thoughts from @jgoedhard?


    Last edited by MrMicra2015; 08-10-2023 at 11:43 PM.
    2015 Micra S (manual)
    no A/C /no power options/ block heater/4x 2 Ohm speakers...all factory stock in 2015
    Feb 2015 build
    9,999 purchase price + tax..no additional 1600$ because it was a 2015 purchased in 2016
    so receipt says $8,399....+1600 .... so they look good i guess...for a brand new car!

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