How to Test and Replace a Bad Car Battery (COMPLETE Ultimate Guide)

Is your car battery dead? Need a new car battery? Learn how to test if your car battery is bad and how to recharge a dead car battery. Also learn which car battery is best for your car. In this video I show you how to test your car battery with a multimeter, clean corrosion from the battery terminals, test your alternator, test for a parasitic draw, load test a battery, and replace a car battery properly. I also show the inside of a car battery with a bad cell and I show how batteries work with multiple grids and how they go bad with heat, vibration and corrosion. And finally I show you the main difference between the different grades of battery and which is right for you.

Tools and Products:
DieHard Battery:
Felt Corrosion Protectors:
Battery Load Tester:
Battery maintainer:
Battery Charger:

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Due to factors beyond the control of ChrisFix, I cannot guarantee against improper use or unauthorized modifications of this information. ChrisFix assumes no liability for property damage or injury incurred as a result of any of the information contained in this video. Use this information at your own risk. ChrisFix recommends safe practices when working on vehicles and or with tools seen or implied in this video. Due to factors beyond the control of ChrisFix, no information contained in this video shall create any expressed or implied warranty or guarantee of any particular result. Any injury, damage, or loss that may result from improper use of these tools, equipment, or from the information contained in this video is the sole responsibility of the user and not ChrisFix.


  • John Q
    John Q3 timmar sedan

    You are definitely the best on SEblack. Love your vids

  • Mokakami
    Mokakami13 timmar sedan

    04 Chrysler Sebring. The battery is in the front bumper right in front of the left side tire. The terminals are routed up to the engine bay but if you need to replace the battery the whole bumper needs to come off.

  • Kenneth Kay
    Kenneth Kay17 timmar sedan


  • Johnny o yo
    Johnny o yo18 timmar sedan

    Some intrepids and 300 m models probably others, the battery is behind the freaking fender, have to take wheel and liner out to get it

  • jermain brown
    jermain brown18 timmar sedan

    Very good i love this channel

  • Amir Karimov
    Amir KarimovDag sedan

    14:53 69 F ahahahah

  • Jonas A
    Jonas ADag sedan

    One way of checking where the problem lies with regards to low charging voltage while car is charging. Clip only told that the positive cable from alternator to the battery could be bad. But it can be the negative "cable" as well. 1. Measuring low voltage with both probes on the battery. Red probe on + and black probe on -. 2. Move only the black probe from the battery to the alternators metal while still keeping the red one on the battery. If it gets good voltage you know there is a problem between metal on alternator and the negative battery pole. Move the black probe from the alternator to some good metal on the engine. If it is still good then you know the bad connection is between engine and negative battery pole. If it is the same low voltage go to next step. 3. Move the black probe back to the metal on the alternator. Now instead move the red probe from the battery to the plus terminal on the generator (shown at 17:55). If it is good then the trouble is between the plus terminal on the generator and the plus pole on the battery. The last step is shown in the clip. I just thought it missed the step 2 checking the negative connection.

  • Jonas A
    Jonas ADag sedan

    16:32 you should have used the red/pink selection (10 MegOhm Input) on the multimeter when just measuring voltage. The selection you use probably activates a load inside the multimeter so basically you are heating up the multimeter and taking power from the charger. It is not so much but right should be right.

  • Jonas A
    Jonas ADag sedan

    You can call it a multimeter. But the multimeter you show has a battery tester function that most of the multimeters do not have. The battery tester function input has a much lower input impedance so it loads the battery while testing. Though this little measuring device only loads that big battery only a little. It is probably intended for smaller batteries. Basically one could do the same with a regular multimeter. Just measure battery voltage with some load turned on like the lights for example but still have the engine off so it is not charging.

  • David Regan
    David ReganDag sedan

    ChrisFix wares a Superman costume when he does his videos! He's a SUPER FRIEND!!! When he hits 8 million SUBS he needs to ware a cool costume!

  • Jordan Brown
    Jordan BrownDag sedan

    I don’t need to replace my car’s battery. I just want to kick back and enjoy a quality ChrisFix video.

  • David Regan
    David ReganDag sedan

    AC/DC must be one of Chris's favorite bands! LOL

  • Bipin Desai
    Bipin DesaiDag sedan

    You are geniuses excellent presentation 👍👍👍👍👍

  • curtis alan
    curtis alanDag sedan

    This battery that battery and one with the top cut off. Made it confusing for me. I'm sure a mechanic in a shop could follow however.

  • Brandon Morgan
    Brandon MorganDag sedan

    My battery is under the drivers side I’ve got a A190 Mercedes UK if that makes a difference with 100,000 miles on do I need to change it ?

  • Sam Trail
    Sam Trail2 dagar sedan


  • Sam Trail

    Sam Trail

    2 dagar sedan


  • Wei Shen
    Wei Shen2 dagar sedan

    My 8MR evo battery is fucked ⋯⋯

  • Kimmie
    Kimmie2 dagar sedan

    Thank you for this . Good info.

  • Pharax 101
    Pharax 1012 dagar sedan

    You're the best Chris big fan.👍🏿

  • Tony Carranza
    Tony Carranza2 dagar sedan

    I have a 2013 Ford Focus and the battery is tucked in far back in the drivers side. Removing it is such a pain😕

  • joshGerbwrecked
    joshGerbwrecked2 dagar sedan

    great videos and content ChrisFix! been enjoying and sharing your content for a while. that said you missed to comment about some of the newer more complex charging systems that require using a factory or high level scan tool to preform a 'battery reset'. basically you need to let the car know its got a brand new battery so that it can restart its very complex charging system. charging systems that now take into account more than we can imagine. Josh Gerbrecht ASE master/L1/AAS degree Automotive technology

  • joshGerbwrecked


    2 dagar sedan

    shoot also what was shown in the video that you referred to as a load test is not a load test. load test literally pull hundreds of amps as if the vehicle was being started. therefore have much larger gauge wires. what is shown in your video is whats common today, a conductance test. not as good as a true load test. but harder to screw up.

  • Mike Simonian
    Mike Simonian2 dagar sedan

    Lol Playlist name wooder

  • James Rochester
    James Rochester2 dagar sedan

    Simpler method to preserve computer/alarm/radio memory is to use an OBD Memory Saver. Inexpensive device that uses 9 volt battery and plugs either into OBD port or 12 volt power supply socket (think old cigarette light looking plug) to keep electricity to these areas when battery disconnected. Use mine all the time. About $12. Google OBD memory saver. Nice video Chris.

  • Lucas Dt
    Lucas Dt2 dagar sedan

    2010 sebring under the bumber tires needs to come off

  • Satujoda Srivathsav
    Satujoda Srivathsav2 dagar sedan

    Hi Chris! I just started watching your vids and I have probably binged most of them. And to think you live so close to where I m (New Brunswick)is unreal . I got my first car like 8 months back... it’s a 2016 golf r.... kindly consider making some videos on a golf... the way you explain things is nothing short of amazing.. thank you

  • jjacobsensnake
    jjacobsensnake2 dagar sedan

    BMW E34 5-series, battery is under the rear bench seat! BTW, when replacing the battery you can use the charger to retain memory/power.

  • Diablowar 84
    Diablowar 842 dagar sedan

    For AGM batteries ; EFB would do as well...

  • justgivemethetruth
    justgivemethetruth3 dagar sedan

    I noticed you took the positive terminal off the battery first ... which is against every other video on SEblack ... they all say removed the negative terminal first. Why does the negative terminal come off before the positive terminal? Seems like if you take off the positive terminal first, voltage is no longer applied to any part of the car, there is simply a bare positive terminal hanging in the air. Then nothing that happens on the car as long as you do not touch the positive terminal will matter. Then virtually anything that happens when taking off the negative terminal doesn't matter. You can even put that little red plastic cap from the new battery onto the old battery while you are removing it so nothing can contact it? I am going to change a battery now and do it the suggested way, but I am wondering why? I wanted to check on the Internet what is the correct way to change the battery, but I wonder why? Any wisdom on this would be appreciated. Does it really make that much difference?

  • Fidel Lopez
    Fidel Lopez3 dagar sedan

    Chris did all your batteries go bad at the same time lol ?😎😂

  • flipwait
    flipwait3 dagar sedan

    The available output arespectively switch because sundial presently grab against a devilish hammer. sad, fresh armenian

  • XNova Blast
    XNova Blast3 dagar sedan

    1992 Pontiac Grand Prix GTP It's located under the washer fluid tank. You have to take out the tank to access it.

  • leon hayward
    leon hayward3 dagar sedan

    I have a 2008 Chrysler Sebring and the battery is in the front of the driver wheel well

  • Lucas Caros
    Lucas Caros3 dagar sedan

    An absolute ChrisFix original

  • jolyn g
    jolyn g3 dagar sedan

    I wish you lived next door to me. My husband has lots of cars and mostly streetrods. He good with fixing them. But my car which is a 2006 corvette had a dead battery charger it good to go, but didn't last, so got new battery worked for a day died big time couldn't even charge it this time, so my husband put in battery from another car and we drove it to mechanic and he can't figure it out either. Never had this problem before..... Not the alternator either. And our mechanic has over 30 years experience. We are at a loss. We live in Florida, do you need a vacation????? You could stay with us!!!!!!!!

  • Gersson B
    Gersson B3 dagar sedan

    I love your videos bro!

  • PauloTheKat
    PauloTheKat3 dagar sedan

    2017 Chevy Cruze hatchback, battery is just behind the rear seats. Not the worst but a bit of a pain cause it's so far back into the trunk.

  • Goat1 Branden
    Goat1 Branden3 dagar sedan

    Wide body the driftstanggggg

    METALLROCK793 dagar sedan

    So, 14.2 at the battery and 14.1 at the alternator. That is good or the alternator is bad?

  • Can't Buy Freedom
    Can't Buy Freedom3 dagar sedan

    You can start the car with the jumper cables and then change the batteries while the car is running.

  • The Plane Expert10
    The Plane Expert103 dagar sedan

    My nana had a battery from 2015 in her car in 2020 and there was a ton of corrosion.

  • Richard Kimble II
    Richard Kimble II3 dagar sedan

    A 2005 Dodge Stratus SXT, and it’s next to the Bumper, in front of the Wheel Well.

  • Dimitri Morselli
    Dimitri Morselli3 dagar sedan

    Strange place for the battery: Alfa Romeo GTV (916) for weight distribution, in the front of the trunk behind of some upholstery ( hold in place with the plastic plugs that always break) over the fuel tank, under a non removable panel with very little room to spare and very little room for access, and where you can't see what you're doing it's a nightmare really... but the car has a 50-50 weight distribution, and as centered as possible, so slightly better handling, it's difficult to explain how uncomfortable that place is without seeing it, go look it up and have pity in me ps: really cool affordable car that Americans don't know

  • Kloko Loko
    Kloko Loko3 dagar sedan

    ALSO you need to know that lead metal is toxic, especially compounds of lead inside that battery. Also acid have dissolved PbSO4 salt in it, so it's contaminated with lead. Just to know.

    SYSTEM_EDITOR.19953 dagar sedan

    Isn't battery acid actually a "Base" (opposite of acid) because it's an alkaline? Or is that just household batteries?

  • Heavy Metal
    Heavy Metal4 dagar sedan

    You CAN use a Multimeter to conduct a load test. Set the multimeter to Volts DC, connect to the battery terminals and crank the engine. If the initial reading is a fully charged battery (12.6V) but under cranking the voltage drops below 10V then the battery is lacking in CCA’s and should be replaced.

  • Heavy Metal
    Heavy Metal4 dagar sedan

    Some modern cars do charge up to 15.1 Volts

  • Heavy Metal
    Heavy Metal4 dagar sedan

    Some STOP/START cars also can take an EFB or Enhanced Flooded Battery rather than an AGM.

  • Morgan Keller
    Morgan Keller4 dagar sedan

    I got question i got a ford fusion and it wont start turn over no lights on dash. I though it was a bad battery do you know what else it could be nothing is coming on at all?

  • ars tamu
    ars tamu4 dagar sedan

    Thank you very much Sir, informative video. Great work.

  • Juan Youtube
    Juan Youtube4 dagar sedan

    Weird question but would coke cola work?

  • NIK
    NIK4 dagar sedan

    hi, Chris, I need a suggestion. Every now and then my card doesn't want to start. I have to charge the battery from another battery only then it works. The car is fairly new around 6 months. Any suggestion should I replace the battery or there is some other problem. There are some more problems like even when you turn off the car the engine still hummed until turned back on and off. AC doesn't work on the first go had to switch off and on again.

  • NIK


    4 dagar sedan

    @Heavy Metal ok sir

  • Heavy Metal

    Heavy Metal

    4 dagar sedan

    Go back to the dealer to inspect and repair under warranty

  • Chris Bragdon
    Chris Bragdon4 dagar sedan

    Hey, when you disconnect the battery, do the negative side first!! When you reconnect install the positive side first!!!

  • Roberto
    Roberto4 dagar sedan

    That platinum battery is for a tractor

  • Mark Nagel
    Mark Nagel4 dagar sedan

    Hi Chris, might want to surprise your dad with a new driveway. He'll love it and your videos will present better.

  • paul pepe
    paul pepe4 dagar sedan

    Thanks for the tip to keep the power supplied during battery change. Never seen that done before.

  • ChrisFix


    4 dagar sedan

    No problem! I know some people dont have their radio code and it creates a mess haha.

  • hotdogbuns255
    hotdogbuns2554 dagar sedan

    This man does a lot of shopping at Advance Auto it seems 🤔

  • hotdogbuns255


    2 dagar sedan

    @ChrisFix No shame in that. I work there haha

  • ChrisFix


    4 dagar sedan

    It is only a few min from my house and I work on cars a lot so... haha

  • Joe Sib Cars
    Joe Sib Cars4 dagar sedan

    In my 2002 Volvo V70 my Battery was in the Trunk and to get to the battery you have to Lift up the Floor And remove the spare wheel Cover then you will see the Spare wheel and the battery was on the Left next to the Spare tyre and to remove the battery cover I had to losen a 13 MM bolt and 2 13 mm Nuts then I had to remove the Bracket then I removed the battery cover then I losened the Negative Battery Terminal then the Positive terminal then I had to remove the 12 mm bolt for the Battery hold down then I was able to remove the Battery I removed it because I was installing Reverse Sensors and I had to remove the Spare tyre because I was removing the rear bumper but you don't need to remove the Spare tyre to replace the battery and my 2002 Volvo is Right hand drive because I live in the Uk and I've owned that car since August 2012 And the thing I like about this car is no one really thinks about buying one but there good Cars Have you ever Driven one of these cars before if you have Driven one they don't have a Good Turning Circle but that's the only design Fault Take care From Joe Sib Cars

  • Jesse Dagandan
    Jesse Dagandan4 dagar sedan

    chris i need your advice my car will start but after 1minute it quit and when start again it wont start. i check the batt. is 12.8 v i need your advice what to do

  • Jesse Dagandan
    Jesse Dagandan4 dagar sedan

    thank you so much chris i love your presentation and it helps me so much to fix my car battery. God Bless You and More Power to you.

  • John-Patrick Kinerk
    John-Patrick Kinerk4 dagar sedan

    If you want to test the alternator itself, but it's not accessible when running, can you place the positive probe on the positive cable connection and the negative probe to a chassis ground? Will that isolate the alternator's current the same way? Thanks, great video!

  • Tyler Smith
    Tyler Smith5 dagar sedan

    Hey @chrisfix so my Subaru Outback (2004) has a pioneer radio put in and when i replaced the battery and didn’t do what you did with the mustang the car Still had all the presets and the computer didn’t reset either. Do you know why I keep trying to research but nothing come up. Or if anyone else wants to help me out please do. Ps love the videos Chrisfix

  • FlowRain Records
    FlowRain Records5 dagar sedan

    on a VW touareg the battery is under the driver's seat... wtf

  • DarcvexiS
    DarcvexiS5 dagar sedan

    Walmart will give you cash back on the spot for an old car battery.

  • Steven Walker

    Steven Walker

    3 dagar sedan

    Advance does too. 10$ for old batteries

  • Jon Hudson
    Jon Hudson5 dagar sedan

    why did you not use the 9v battery method instead of the jumper cable?

  • Kash Patel
    Kash Patel5 dagar sedan

    Chris excellent demonstration and attention to detail, keep the videos coming !!

  • nunya nunya
    nunya nunya5 dagar sedan

    2015 gmc acadia its in the back seat under the carpet

  • Kenny Powers
    Kenny Powers5 dagar sedan

    i dont understand the battery shorting explanation why wouldn't both sides spark?

  • Flynフ
    Flynフ5 dagar sedan

    Have you ever change the battery while engine running?

  • GTAVince
    GTAVince5 dagar sedan

    Iemand enig idee waar je die DieHard Battery Accessories Terminal Protectors & Grease in Nederland kunt kopen?

  • Erik Brice Ledford
    Erik Brice Ledford5 dagar sedan

    Y’all this is the most IMPORTANT youtuber there is

  • King Freedom
    King Freedom5 dagar sedan

    hey how can i get that terminal connect

  • shaun wilson
    shaun wilson5 dagar sedan

    Nice job . 1st rule I learned was to make sure the keys are not in the car .. some lock when a new one is fitted .

  • ethan moir
    ethan moir5 dagar sedan

    Fun battery location '91 BMW 735i under the rear bench seat. Such a big battery it had to be wiggled out. Complete pain, even the regular mechanics complained about it.

  • Craig Venables
    Craig Venables5 dagar sedan

    Amazing thankyou

  • Matt Bates
    Matt Bates5 dagar sedan

    2013-2019 Ford Escape Battery - Requires wiper arm removal, brake fluid reservoir to be detached, requires cowling to be removed. It's placed behind the windshield lol. Did this for a buddy's wife.

  • Alex Labanino
    Alex Labanino6 dagar sedan

    Yes, replacing a battery is easy unless you have a bloody Dodge Journey! 😉

  • izzy garbo
    izzy garbo6 dagar sedan

    Best pratice if you are changing your own battery is clean battery case out with baking soda to neutralise any battery acid. Dry it off before installing new battery. I perfer 2 coats if battery tetminal sealnt sprays over the silicone. Had one car that within a month silicone on battery terminals were covered in dust.

  • Gustav J.
    Gustav J.6 dagar sedan

    These batteries definitely weren't staged. :)

  • LeeYenHua Gaming
    LeeYenHua Gaming6 dagar sedan

    You can just jump start the engine and change it normally and the things will not reset.

  • izzy garbo
    izzy garbo6 dagar sedan

    Why on brand new Hondas do the batteties fie after only 2 years. Both of my new CRV'S & my sons new Accord died after 2 years. I clean the batteries twice & year with baking soda and spray on 2 coatings of battery sealant or whatever its called. Replacement batteries lasted 4 to 5 years.

  • Mahdee Arif
    Mahdee Arif6 dagar sedan

    In my Corolla 2013 Hybrid, What's the location of the 12V battery? Chassis Code is- NKE165.

  • Volodymyr Zakolodyazhny
    Volodymyr Zakolodyazhny6 dagar sedan

    "If it is damaged or corrosive", and shows a car cleaned like cat's balls and looks like new. :-)

    AEOOOON6 dagar sedan

    Love the perfectionism in your videos, both in terms of content but also with editing. I've watched this channel from the very beginning, don't own a car, but I've probably watched half the videos - I really want to buy a car to just work on it at this point :D

  • Rayz Videoz
    Rayz Videoz6 dagar sedan

    I was sad like litteraly crying hearing him say "hey guys' idont know why it cheered me up

  • Madison Scott
    Madison Scott6 dagar sedan

    Replace car battery??? This is for ignorant I revive my battery each time and it is OK for another 3 years

  • Joker135 smiley
    Joker135 smiley6 dagar sedan

    2005 Buick LeSabre the battery is under the backseat

  • Birki gts
    Birki gts6 dagar sedan

    What causes batteries to fail in extreme cold?

  • Dr. Thermostat
    Dr. Thermostat6 dagar sedan

    2012 Ford Focus SE The battery is located half in open air where it’s accessible in the engine bay, and the other half, which I believe has the negative side, is under the driver side lip trim (under where the AC air intake is located) where it’s virtually inaccessible without removing the battery from the vehicle altogether. Good ol European Ford quirks

  • TM
    TM6 dagar sedan

    "wooder" on music

  • TM
    TM6 dagar sedan

    i love chris fix video because he also teaches the science behind it edit: wow i learn something i didnet learn from school. agm is more durable and require for start/stop tech

    ACK MY BACK6 dagar sedan

    Trickle chargers are just life support for batteries

  • iLife64
    iLife646 dagar sedan

    I had an 00 Lesabre, took me 30 minutes to figure out it was under the rear bench

  • Seth Pigman
    Seth Pigman6 dagar sedan

    I've heard some battery's are under the seats

  • Zhenren Zhou
    Zhenren Zhou6 dagar sedan

    On an actual High Mobility Multipurpose Wheeled Vehicle, the 2 heavy Hawker batters are sitting right underneath the passenger/TC seat. They are connected in series to make at least 24 volts and the cold cranking amp on each battery should be 1250.

  • riskinhos
    riskinhos6 dagar sedan

    do you know why car batteries are the most recyclable item in the world? because they are worth money. that's why.

  • updaon
    updaon6 dagar sedan

    Lamborghini diablo baterry placement 🤣

  • hamsterWITHtheGLASSES
    hamsterWITHtheGLASSES6 dagar sedan

    What if my car is a 18 v

  • Ian Keeffe
    Ian Keeffe6 dagar sedan

    Vw vanagon westfalia, cranking battery under the passenger seat, at the front of the car, engine in the rear😂. “House” battery under drivers seat. Land rover defenders have the battery under the drivers seat i believe too

  • Alex Gordon
    Alex Gordon6 dagar sedan

    How do you always know when I’m having that exact problem with my car? Mine is leaking from the top and spitting a little.

  • Bucky Shooty
    Bucky Shooty6 dagar sedan

    I love the vids