Here's Why Connecting Your Battery Like This Will Destroy Your Car

Here's Why Connecting Your Battery Like This Will Destroy Your Car, DIY life hacks and car repair with Scotty Kilmer. Car life hacks. How to make car battery last longer. Car battery maintenance. How to keep car battery charged and running for years. Car hacks that will save you hundreds in car battery replacement. 5 minute life hacks to make your car battery run as long as possible. Car maintenance tips. 5 minute hacks. Car Advice. DIY car repair with Scotty Kilmer, an auto mechanic for the last 56 years.

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⬇️Scotty’s Top DIY Tools:

⬇️ Things used in this video:
1. Common Sense


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[felicelamanna]

When changing the battery connection, remove negative first, install positive first. This way if you're tool touches ground while on the terminal there is no short.

[bronovalter]

That's why I always change my own batteries. I don't make mistakes like leaving the terminals loose. I also take them off and clean them periodically. That is also the first thing I check when I have electrical problems. I learned that in the 70's.

[jimmymcguire]

Yes, tight is good. I would have first removed the cable end and used a battery post brush on the ends and posts. Tight is good. Clean and tight is better !

[rodneyjhackenflash]

Those Odyssey batteries have low cold cranking amps and are ridiculously high priced/ I've been using Walmart batteries for decades and I highly recommend them. My latest three-year Walmart battery by Johnson Controls is closing in on year 7 of its life. Purchased in Oct 2017. (Today is January 22, 2024) Still cranking good and doesn't falter in extremely cold weather. Cost $80.00. I think that's a darn good deal.

[MrJaybird]

Scotty - The Peoples Mechanic - nothing gives me more comfort than knowing that our boy Scotty is there to coach us all on some regular stuff that we might otherwise not know about. But Scotty - please - more hand waving please. We need more! Bring it!

[JPTech]

Only honest people admit their mistakes or when they are wrong.. That's why I trust Scotty's advice

[johnvrbka]

Dont be telling people those bolts need to be supper tight cause i see people have over tightened them many times & ether breaking or streching the clamps. They just need to be clean, snug but not loose ether. Thanks for all you do to help people.

[kenhnsy]

Simple but important stuff. Thanks, Scotty. I once blew a head gasket because I replaced a hose and used a Harbor Freight hose clamp. (They slip teeth.) Neglecting details or going too frugal can cost big bucks.

[BryanTorok]

While you are checking the clamps on the battery, also check the other end of the cables, particularly the ground to the body and the ground to the engine. I've seen lots of flaky and intermittent things happen with loose or corroded grounds.

[benjaminsmith]

I had the same trouble with a loose terminal. Jump starting worked like a charm, and made me think it was a bad battery, until the next time I went to jump it I forgot to turn on the power to the emergency jumper and it still started! Man, it feels good when the universe shows you the REAL problem before you spend money.

[Dakiraun]

Yep - faulty ground connections can result in all sorts of weird things going on. One of my aunts has an old Chevy Cobalt and it started acting like it was possessed - turning on and off lights, activating door locks and windows and other odd ball behaviours. The ground wires had corroded off (so that is another thing to check for - not just tight connections, but make sure the ground wire actually grounds). Once a new ground wire was on, the car returned to normal.

[roadk]

I remember when all you needed to check a battery and alternator was a test light and analog ohm meter. Nothing was digital back then. It was a simple world back then. Thank you Scotty for all you do for us. Really enjoy your videos.

[MrMockingbird]

Hey Scotty, My old mechanic father in law would take a goofy car and remore a termal connection. Then he would shine the battery and the inside of the terminal with a little plumber's emeroy cloth. Then he'd do the other terminal. This made sure the terminals were both very clean and tight. Then he'd look at other possible problems.

[jeannecollins]

Scotty is a combo of Dennis Hopper, Joe Pesci and Christopher Walken. Right on! 😎

[Flammable]

I own a 2012 Toyota Yaris I bought new. When the original battery started to fail it would still start the car fine but weird electrical things started happening like the auto door locks would randomly lock and unlock while driving. I bought a battery tester and it said to replace the battery. I did and that fixed the issues. Had I not learned this from watching these videos I would be going down one of those rabbit holes Scotty mentioned thinking I had a short or something.

[alexanderzummallen]

My 2011 Honda element had a check engine light for the TPMS sensor. I unknowingly cleaned the ground and battery terminal doing a transmission fluid job solved the issue! either dirty ground right next to the battery or lose battery connection caused this issue! Thank you Scotty for your transparency its truly a difficult job diagnosing modern cars!

[ruffleschips]

Really enjoyed your video. It was a good thing you didn't see the loose battery terminal at the first, or we wouldn't have gotten all the additional information.

[Mike-Olds-]

That engine sounded like a lawnmower with a bad connecting rod. 😆

[יונתןזנטון]

Thanks Scotty. I've found that hitching up a smart charger (like CTECK ) to a regular battery overnight at around its midlife- about 2-21/2 years- will increase its life by at least a year.