1. Welcome to Tundras.com!

    You are currently viewing as a guest! To get full-access, you need to register for a FREE account.

    As a registered member, you’ll be able to:
    • Participate in all Tundra discussion topics
    • Transfer over your build thread from a different forum to this one
    • Communicate privately with other Tundra owners from around the world
    • Post your own photos in our Members Gallery
    • Access all special features of the site

2022+ battery fluid check

Discussion in '3rd Gen Tundras (2022+)' started by tarpus91, Dec 8, 2023.

  1. Dec 8, 2023 at 4:16 PM
    #1
    tarpus91

    tarpus91 [OP] New Member

    Joined:
    Nov 28, 2023
    Member:
    #107613
    Messages:
    3
    Gender:
    Male
    Does anyone have a good way to check the battery fluid level? (acid)

    It is hard to look down the battery cap holes because they are close to the hood and firewall.

    There are min and max lines on the front of the battery case, but it is very hard to see the fluid levels because the case is so opaque.

    I was thinking to wait for night time and shine a flashlight thru the case?

    Any ideas?

    2024 Tundra non-hybrid
     
  2. Dec 8, 2023 at 4:21 PM
    #2
    TundraTT

    TundraTT Full Send

    Joined:
    May 1, 2022
    Member:
    #77843
    Messages:
    280
    Gender:
    Male
    Vehicle:
    3rd Gen Tank
    Modern batteries are maintenance free. Buy a cheap battery tester if you want to check on it
     
    Wallygator and AZBoatHauler like this.
  3. Dec 8, 2023 at 5:27 PM
    #3
    Oldandfat

    Oldandfat New Member

    Joined:
    Feb 26, 2022
    Member:
    #75138
    Messages:
    580
    Cannuckastan
    Vehicle:
    2024 SR5 TRD Offroad Lunar Rock
    Buy something like this:

    https://www.amazon.ca/Plews-75-030-...5560450&mcid=69b0d3dbbbaf3bed90f13f011c2d463e


    Fill it with distilled water. It auto shuts itself off at the right level. Charge your battery completely BEFORE adding water.

    while the caps are off hit the battery with a “repair” or equalization voltage for a few hours.

    (Even sealed batteries can be accessed. Sometimes its as easy as peeling a sticker, sometimes you,can cut out the “caps”)

    if it’s a sealed battery I wouldn’t bother. I usually replace from Costco. Serviceable batteries, good price, and really good warranty.
     
  4. Dec 8, 2023 at 7:33 PM
    #4
    tarpus91

    tarpus91 [OP] New Member

    Joined:
    Nov 28, 2023
    Member:
    #107613
    Messages:
    3
    Gender:
    Male
    My particular battery is not maintenance free. It has 6 caps to check and add distilled water if needed.
     
    1lowlife likes this.
  5. Dec 8, 2023 at 9:36 PM
    #5
    Chuy!

    Chuy! New Member

    Joined:
    Jan 27, 2023
    Member:
    #91021
    Messages:
    187
    Gender:
    Male
    Lakeside, CA
    Vehicle:
    2007 Tacoma 4X4
    I think you have the right idea. Do at dark and shine a light on it. I use a turkey baster like pump to add distilled water as needed.
     
  6. Dec 9, 2023 at 6:59 AM
    #6
    Oldandfat

    Oldandfat New Member

    Joined:
    Feb 26, 2022
    Member:
    #75138
    Messages:
    580
    Cannuckastan
    Vehicle:
    2024 SR5 TRD Offroad Lunar Rock
    then buy the battery watering jug thingie. It’s idiot proof (I’m an idiot, lol). Fill it with distilled water. It stops filling when the water is at the correct level. I used to mess around with a flashlight and look.

    Just make sure to charge fully before you add water, and let the battery settle.
     
  7. Dec 9, 2023 at 8:43 AM
    #7
    1lowlife

    1lowlife Toxic prick and pavement princess..

    Joined:
    May 4, 2016
    Member:
    #3296
    Messages:
    8,078
    First Name:
    DADA
    THE GREAT STATE OF TEXAS
    Vehicle:
    2014 MGM DC SR5
    That isn't necessarily true.
    I used to think that.
    Toyota gave me a 84-month TruStart in July of 2022 because they had my truck for 8 months waiting for cat parts.
    I few months ago the truck started to start a little sluggish like the battery was going bad.
    Bought a $20 battery tester on Amazon and it read the battery was going bad.

    I could have gone to Toyota, but that is an all-day trip to the dealership I didn't want to deal with.
    I've always favored Interstate batteries so I went to Interstate to trade it in on an MTP 27F.
    The first thing the Interstate rep did was open the battery caps and it was low on water.
    I haven't put water in a battery in 20 years, I thought they were all sealed these days.

    I went ahead and bought the Interstate anyway.
    It isn't sealed either.
    The rep said just make a note to check the battery water when I do an oil change..

    Looking back Toyota probably wouldn't have replaced the battery under warranty since the water was low..
     
  8. Dec 9, 2023 at 9:27 AM
    #8
    Oldandfat

    Oldandfat New Member

    Joined:
    Feb 26, 2022
    Member:
    #75138
    Messages:
    580
    Cannuckastan
    Vehicle:
    2024 SR5 TRD Offroad Lunar Rock
    An agm battery doesn’t require watering. Flooded ones do.
     
    Mattedfred likes this.
  9. Dec 10, 2023 at 10:33 AM
    #9
    tarpus91

    tarpus91 [OP] New Member

    Joined:
    Nov 28, 2023
    Member:
    #107613
    Messages:
    3
    Gender:
    Male
    My concern with the watering jug it that it is generic, and how do you really know that it is setting the water level correctly? This OEM battery may have different requirements than a more commonly available aftermarket battery.
     
  10. Dec 10, 2023 at 11:06 AM
    #10
    DRP

    DRP Old Member

    Joined:
    Aug 20, 2023
    Member:
    #102452
    Messages:
    331
    First Name:
    Dave
    Vehicle:
    2023 1794
    I would say if you're that worried about battery acid level then pull the battery and do the maintenance on your workbench.
     

Products Discussed in

To Top