The best way is to remove the battery. Certainly the terminals should at least be disconnected so that they and the posts can be cleaned thoroughly. Also the corrosion on the positive terminal indicates an overcharging situation, so that should be addressed as well.
Battery posts corrode because of leaks around the post where the case is supposed to seal on the post. I always use some silicone around the post where it connects to the case and the problem is solved. Good to do this when its brand new.
Good video. Should unhook the negative(s) then positive(s) (on diesel). Use a scraper style cleaner for posts and lead terminals, I still use a wire brush to clean the hard terminal clamps. Also use of a memory saver may be of benefit on many vehicles to retain data written in volatile RAM. A great time to test the battery during this time, on a diesel the batteries need to be tested individually.
Pour Hot water over the terminals with no need to remove the cables. Then use Vaseline around the bottom of the 2 terminals to prevent the vapors from forming new corrosion on the terminals.
When you see this much corrosion on a battery there is something wrong in the charging system. Could be just a loose terminal or possibly not enough charge from the alternator. I learned this many years ago from a battery so to speak specialist and in the military as a mechanic.
Maybe the heavy corrosion also may occur because the battery has reached the end of its useful life and is throwing off gases that are interacting with the metal parts...
Your making it more complicated then it has to be. Just boil hot water and pour a cup hot water over the cable no need to disconnect. I put a bit of baking soda a too. It fizzles like soda and dissolves immediately!
Nice how to video John. My only question/thought is I don't know that I would want the corrosion going into my vacuum. Do you think it could do any damage to the vac?
Pat-413 Great minds think a like. I also thought about that and use my oldest shop vac just in case. Technically the chemical reaction has already happened therefore it should not cause a problem and with The shop vac being plastic it should not cause any corrosion. The filter on the motor should keep any particles out from going in there, so technically everything should be OK.
@@JohnEngel OTOH, the fact that the magic foam is turning PINK suggests there's still some "reactivity" left in that pretty blue powder... NOT a chemist... just a half-baked farmboy with no spare shop-vacs ;')
Don't ever suck up something you don't want hanging in the air if you don't have a proper filter on. HEPA minimum. Acid is one of them. Just use baking soda and water to neutralise it then wipe it off. Big no no to even use a shop vac for this, its lazy.
I have had a 2011 Sonata since 2014. I never had corrosion. I was working on my girl's 2017 Altima. The positive connector was a sand castle. Why would it be so over charged?
Most likely there is a small leak of battery gasses around that post. These pads absorb those gases so they do not create a build up. Great question and thank you for asking.
I picked up some of these pads at O’Reilly‘s auto parts. Put them on the car. They seem dry. Do they need some sort of oil added to them that they don’t include for shipping purposes?
Very informative.thank you. Experiance with this issue has turned me into a firm believer in using the felt rings so thanks for the link. I went to 2 stores today, Wall Mart had terminals, Harbor Freight's DIY candy store surprisingly had nothing, neither had the felt rings. Could be a Covid issue I guess....
That usually means that the terminal needs to be tightened or should be replace. In some cases the terminal is slight tighter at the top which means you would need to remove the felt or replace the terminal.
Robert when you are good you are good. It was cracked and couldn’t come off with replacing the terminal. We cleaned it and then had to get a ford terminal.
@@JohnEngel at the first 2 minute of the video , I was trying to see what you are doing in the corrosion part but written that clarifies what you are saying in the bottom of the video was blocking the view , but it’s good info
no wonder u have corrosion all the time , no post brush used , no grease used on the post , no sealer used after terminal was put back on , yup corrosion will follow
@@foxkenji theres plenty sealers an protection products out there crc makes a terminal sealer protector permatex also makes a sealer/protector just search battery terminal sealer
This is not the proper way to do the battery service. If you have "BLUE" corrosion is pure acid, the battery should be replaced period and terminal. Corrosion that is "WHITE" is vapor which will happen over time. That battery hold down had corrosion also which needs to be cleaned. CRC battery terminal protector should be used, not the pads they do you no good and big waste of money. Dont follow this video instructions, do it the right way.
Very impressive as a woman at 83 I think I can do this
Negative off first - negative on last!
The best way is to remove the battery.
Certainly the terminals should at least be disconnected so that they and the posts can be cleaned thoroughly.
Also the corrosion on the positive terminal indicates an overcharging situation, so that should be addressed as well.
I’m not sure I agree 100% but that you :)
Overcharging ? By what?
@@billwayne3924
Alternator, you know the thing that charges the battery? They can malfunction and both under or overcharge the battery.
Ooooh. I see, thanks for the info....@@fubartotale3389
@@fubartotale3389 dielectric grease, and baking soda and water for cleaning. Corrosion may also be caused by a failing battery.
Battery posts corrode because of leaks around the post where the case is supposed to seal on the post. I always use some silicone around the post where it connects to the case and the problem is solved. Good to do this when its brand new.
Very good point. :)
You need that round little battery terminal cleaner brush for .99 cents. Also spray that red stuff over when done
Good video. Should unhook the negative(s) then positive(s) (on diesel). Use a scraper style cleaner for posts and lead terminals, I still use a wire brush to clean the hard terminal clamps. Also use of a memory saver may be of benefit on many vehicles to retain data written in volatile RAM. A great time to test the battery during this time, on a diesel the batteries need to be tested individually.
Pop works great 😂
I will try that next. LOL
Pour Hot water over the terminals with no need to remove the cables. Then use Vaseline around the bottom of the 2 terminals to prevent the vapors from forming new corrosion on the terminals.
I’ve seen people use Pepsi or coke on this
I've seen them where the terminal clamp was totally gone with noting left but the wire.
When you see this much corrosion on a battery there is something wrong in the charging system. Could be just a loose terminal or possibly not enough charge from the alternator. I learned this many years ago from a battery so to speak specialist and in the military as a mechanic.
Great info. Thank you.
Maybe the heavy corrosion also may occur because the battery has reached the end of its useful life and is throwing off gases that are interacting with the metal parts...
That will likely eat the bottom out of your vacuum cleaner.
Lol. I hope not.
I tryed those rings but didn’t help very much but looks good anyway
“Now, should your shop-vac start acting up, we have a professional shop-vac battery acid cleansing kit”
Time to stop the video, I don't have a Shop-Vac.
@@gingerwallets8000 Those are mostly just salts
@@daijoubu4529 don’t mind if I do sprinkle a bit onto my tasteless “In n out” fries.
Your making it more complicated then it has to be. Just boil hot water and pour a cup hot water over the cable no need to disconnect. I put a bit of baking soda a too. It fizzles like soda and dissolves immediately!
That’s great. I will give it a try. Thank you.
The baking soda neutralizes any acid.
Nice how to video John. My only question/thought is I don't know that I would want the corrosion going into my vacuum. Do you think it could do any damage to the vac?
Pat-413 Great minds think a like. I also thought about that and use my oldest shop vac just in case. Technically the chemical reaction has already happened therefore it should not cause a problem and with The shop vac being plastic it should not cause any corrosion. The filter on the motor should keep any particles out from going in there, so technically everything should be OK.
@@JohnEngel Makes sense...
@@JohnEngel OTOH, the fact that the magic foam is turning PINK suggests there's still some "reactivity" left in that pretty blue powder... NOT a chemist... just a half-baked farmboy with no spare shop-vacs ;')
Don't ever suck up something you don't want hanging in the air if you don't have a proper filter on. HEPA minimum. Acid is one of them. Just use baking soda and water to neutralise it then wipe it off. Big no no to even use a shop vac for this, its lazy.
Clean with baking soda or Coca-Cola after clean apply a vastly on battery terminals okay.
thank you
Check battery fluid level also
Great point.
do you recommend applying the CRC red battery spray protectant on terminals as final layer of protection when finished?
Steven Watson it’s not a bad idea. I was out when making the video.
You are blessed....
Do those felt pads not come with some lube? Do you put the lube on the pads or just on the top of the connection/post after fastened?
The pads are meant to be dry. They collect the gasses that cause the build up.
Solve the whole issue with boiled water, dry it, electric grease on terminals
This was from a battery that had a leak. The gases where coming out and causing so much corrosion.
Are you working on your car while wearing a Rolex Milgauss? 😂
Lol. Good catch. I sometimes forget to take my watches off. Lol.
I have had a 2011 Sonata since 2014. I never had corrosion. I was working on my girl's 2017 Altima. The positive connector was a sand castle. Why would it be so over charged?
Most likely there is a small leak of battery gasses around that post. These pads absorb those gases so they do not create a build up. Great question and thank you for asking.
What is the bennefit from these absorbing pads?
They absorb any gasses released and keep they from corroding.
Get rid of those old school batteries corroding, acid leaking things. Buy a sealed battery.
This was a friends car so we got him cleaned and ready to go.
For the love of Moses!!LOL!!
I picked up some of these pads at O’Reilly‘s auto parts. Put them on the car.
They seem dry. Do they need some sort of oil added to them that they don’t include for shipping purposes?
Nope. They come dry and absorb the acid. :)
I think you need a pinky ring as well.
Lol. Might help.
You should NEVER wear rings when working on batteries!!
Very informative.thank you. Experiance with this issue has turned me into a firm believer in using the felt rings so thanks for the link. I went to 2 stores today, Wall Mart had terminals, Harbor Freight's DIY candy store surprisingly had nothing, neither had the felt rings. Could be a Covid issue I guess....
I thought those expensive trucks didn't have that problem
I wish. Lol.
@@JohnEngel heheh yeah
When I put the felt washer on one of my battery posts, the terminal gets loose. Any suggestions? Thanks
That usually means that the terminal needs to be tightened or should be replace. In some cases the terminal is slight tighter at the top which means you would need to remove the felt or replace the terminal.
@@JohnEngel Thank you for the help. Much appreciated
Food grade gloves ,no proper eye protection, and vacuuming Corrosive battery powder. No thanks.
Tell me that you are a blast at parties without saying it. Lol.
you didn't disconnect the battery
Robert when you are good you are good. It was cracked and couldn’t come off with replacing the terminal. We cleaned it and then had to get a ford terminal.
You forgot to clean the battery terminal. Go back with a wire thermal cleaner brush and redo them. 🤦🏼♂️
Good eye. They will be fine.
Wire brush or emery cloth or both, the goal being to reduce voltage drop.
Great job.. Perfect instructional video. Dang that's a good looking truck and what brand is your watch?
Gary Feenstra Lol. I just think you liked the hug at the end.
Any fellow gear-heads know why this vehicle has not one, but *2* larger-than-usual batteries????
-- Puzzled in Peoria.
The two batteries are for higher cranking amps, which are needed for the high resistance load that a diesel engine requires during starting.
@@JohnEngel Low resistance load.
Wouldn't wanna use milgauss doing this.
It’s the perfect watch for anything electrical. I might get electrocuted but the watch can take like 1000 mill.
I couldn’t see your written thing is blocking the view
What do you mean?
@@JohnEngel at the first 2 minute of the video , I was trying to see what you are doing in the corrosion part but written that clarifies what you are saying in the bottom of the video was blocking the view , but it’s good info
Save me $30 👍🏾 that i almost paid dealer
Thank you so much.
no wonder u have corrosion all the time , no post brush used , no grease used on the post , no sealer used after terminal was put back on , yup corrosion will follow
steve p lol. Those are great points. Thank you.
What sealer are you talking about? Give specifics plz.
@@foxkenji theres plenty sealers an protection products out there crc makes a terminal sealer protector permatex also makes a sealer/protector just search battery terminal sealer
Or a light coat of engine oil will seal it also. Wipe post with oil before putting terminals back on and then wipe some over the exposed metal.
Ordinary Vaseline works too
This is not the proper way to do the battery service. If you have "BLUE" corrosion is pure acid, the battery should be replaced period and terminal. Corrosion that is "WHITE" is vapor which will happen over time. That battery hold down had corrosion also which needs to be cleaned. CRC battery terminal protector should be used, not the pads they do you no good and big waste of money. Dont follow this video instructions, do it the right way.
edward moyer great point. Thank you.
STOP SAYING "SO"!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
So, I think you might be right.
Horrible job , pretty boy...lol
I’ll take it. Lol.
Or you could just use mixture of warm water and baking soda..pour on rinse off- voila call it a day.
sure can.
That is half a job.