Reviving a dead car battery (lead acid)

[halseyM]

Don't use TAP water if you intend to keep the battery as minerals fur up the plates & makes recharge capacity worse. Use DE-IONISED WATER

[celltechlars]

For old battery in junk car. I put 2 spoons of crushed ice into each hole and even a little beach-sand might be good too. Then I boil 1 liter of pool water and about a mouthful of Listerine or diet Pepsy in it. Pour hot from pan onto crushed ice/beach sand in battery holes until full to the top.

Then I hook it up to ark-welder on medium setting. Just let the stick weld against battery post so you get nice strong humming sound. The earth goes on negative post. Let it hum for 5 days. Like new !!

[demnlordd666]

using water & forcing electricity through it only works if it completly discharged normally, b/c all the sulphuric acid is locked into the plates as PbSO4, using clean water and charging it you make the acid + Pb + PbO plates, but if fused you are always gonna have a low charge, you cant clean plates that don't operate as a pair because they r shorted together w/o over leaching others badly --> over precipitation of excess lead & shorts. good luck

[WECB640]

I want to thank the imbeciles for their comments. The fodder was entertaining.

[g7txu]

This bloke clearly knows shit

[da1stegr]

Looks super cool man.

[imanulsofian]

Nice work. This is almost exactly the way I used to experiment with dead battery years ago. Just be careful yourself, those battery can explode even though there's no source of fire or spark around.

[mofaraider]

Tonight I reanimated the original Battery of my 1975 Kwasaki Ke125. I flushed the Battery for around 20 minutes under warm tab water. I flushed all the lead mud out of it and refilled it with accid, Now it slowly gains power again, i think its really impressive that such an old Battery acutally works again :-) Great Video by the way.

[Alexernst55]

were the fuck will i find these things at the side of the road?

[DJstillill555]

@Alexernst55 no you will find these fucking things at the fucking HARDWARE STORE you fuckin moron

[aarkaarkangel]

NO! NO!NO! David1513 -you'll blind people telling them to add water to acid.

Perhaps, that's your idea of fun.

It's simple:

"Add acid to water,

That's what you oughter".

silly rhyme, but it keeps you safe.

Anyone now unsure - just Google it!

PLEASE

[mikemotorbikeca]

he means, have a container of water sitting there already; and then pour acid onto the water. Not the other way around, this way is recognized as much safer as it will not explode in your face.

[combomaster99]

OK i have this batt, it does work but its supose to give 40amp.

I'm getting 12volt, even after a 3 hour charging i'm not having enough power to crank anything.. wel maybe for 1 or 2 spins(poorly).

Now, would overcharging this batt give me the lost amps back?

Its not so old but it did survive a few winters...

If you have an idea tell me !

[david1513]

you can put water in acid,, but never ever put acid in water thats when it will jump out of the case its in, so if your not sure if its ever hard water put in it never add acid, if you know its never had water in it for sure like you bought it new, then acid can be added, puting acid in water will almost exsploud as soon as it hits the water remember "water in acid" not acid in water,

[batforjustice]

I have one of those variacs. If I had to break the system down. the use of a single rectifier will make the charging voltage a half wave 30 hertz going into the resistive halogen. but since there is no capacitor it will still remain mostly ac. although the lamp is slightly inductive like the battery itself. A reason why it seems to have an effect is because unlike a dc current constantly pushing an ac will act more like a jack hammer and if it is sulfated by chance it may break it up over time.

[hanzithaking]

i always use distiled water in my batteries and it works all the time

[roynexus6]

Tap water WILL destroy whatever is left of the battery. At least use distilled water.

[iwishiwasanonymous]

i just googled "water into acid" and it pretty much said dont do it cuz pouring water into acid can cause a "violent reaction" that is harmful even with proper clothing... even the setup sounds sketchy... im surprised you didnt kill yourself

[ajay120]

@iwishiwasanonymous the battery acid is very dilute and it wont hurt you until u intentionally put your finger into it.

[aabaron2000]

@iwishiwasanonymous Battery acid is close to 35% sulfuric acid when it is fully charged. When discharged the acid is quite dilute (5%) in either case the liquid in the battery is not a "pure acid" therefore there is no harm in topping up the level. (Note: never add water to 99% pure of any acid, the heat produced will vaporize and eject the water/acid out of the container) and NEVER use tap water, always distilled water.. The minerals and other chemicals in tap water will lower the bat potential

[ztarrfect]

@aabaron2000 I did hear that if one can't get distilled water one can cook water and this will be the next best thing.

[jettaracer56]

Never put tap water in your battery, do you know how many contaminants are in there??? Go to wal mart and buy distilled water

[fredriktaaje]

If you do an AMP check ( capacity check) on that, i`ll bet you have lost at least 25-45 % of the capacity and the cell structure can be disturbed by too fast charging.. The same thing that destroy a battery slowly every time you crank the starter the current will physically move the cells until the day it is shorted and dies.

[asiancustoms]

@fredriktaaje what is the difference of battery chargers with different amp ratings? how does it affect the charging of the batter?

[dreamyear]

@asiancustoms you need to overcharge the battery ... it gose to electrolysis than aicd will come out in normal water..

[NETWizzJbirk]

How about buying a battery charger?

[FahimMotoGP]

never pure water into acid

[BlueHeavenBound]

I've never heard of a Variac, but couldn't you use White Vinegar in the Battery?

[yamaha69x]

@utomik shit man ur very pro for saying that

[antfaney]

im gonna put coke in my batt ...

[ils360]

DON"T PUT TAP WATER IN THE BATTERY!!!

[brandon14872]

what happened on the carpet 0:10

[ActinADonkeyTime]

i got a dead battery in new jersey on my way home from Ny!!

[6Camel6Finger6]

my power supply has all of this built into it - 5-15 volts 20 amp with all the protection devices built into it as well as an amp and a voltmeter so you can see whats going on

[6Camel6Finger6]

i have access to sulp[huric acis...should i pour it right in pure or dilute it? i also have access to distilled water all at no cost

[sakcheegii]

maybe i can put hydroxy water?

[dreamyear]

yes...that will work too

[m3sca1]

if you have gunk on the plates-it will come off under the electrolysis process.

the gunk then falls to the bottom and over time can become a short circuit for the cell.

tap water contains alot of minerals that will coat and ruin the plates.

emptying the battery of acid completly then filling with distilled water only-charging it reverse polarity -so the gunk(sulphates)is pushed off the plates,then empty and dispose of the dirty water.

put the acid back in and charge normally.

that works

[abyssunderground]

Lol, tap water is exactly the way to KILL a lead acid battery. It has impurities which cling to the plates and reduce its surface area. Use only distilled water, which is about £1 for 1L just about anywhere.

[jjenson2006]

Never sue tap water in a lead acid battery; you will significantly decrease its life.

You ONLY distilled water.

A better way to revive a lead acid battery is to remove 1 pint of the electrolyte from the battery. Boil 1.5 pints of distilled water, add 12 tbl spoons of magnesium sulfate (epsom salt) and stir until desolved. Pour the mixture into your battery to take up the space of the fluid you removed and top off each cell.

Charge at high amps; battery will come back after a few cycles.

[mrgalleria]

Will the battery perform normally after being revived?

Bill

[dreamyear]

@mrgalleria  yes..it works fine...I get it constant current output

[dreamyear]

if you don't have variac... use 24v battery

[mrgalleria]

@dreamyear

How about a low amp 25-30 volt transformer?

[dreamyear]

u can try but i think it needs least 3amps