optima dead...

[KyngHype 10+ year member]

friend has a dead optima he said i can have, can you refurbish them?

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[jdawg 5,000+ posts]

if you put it on a slow charge like 2amp for a day it might charge back up but other than that, no

 

[dave_damage 10+ year member]

You got a boat?

 

[KyngHype 10+ year member]

I wish I had a boat... Nope

 

[dave_damage 10+ year member]

I was going to say you could use it as a anchor.

 

[audiobahnuser18 5,000+ posts]

hahahhaa what dave damage said. ask your friend to check the optima with a dmm and to let u know what its resting at.

 

[KyngHype 10+ year member]

I was going to say you could use it as a anchor.

hahahahahahaha! that was hilarious man, I needed that

 

[loopkiller 10+ year member]

No there is no refurbishing batteries. Once that Optima hits below 10.0v, she is a gonner.

 

[scoob8000 10+ year member]

IMHO optima = junk

 

[IDSkoT 5,000+ posts]

No there is no refurbishing batteries. Once that Optima hits below 10.0v, she is a gonner.

The YT is a deep cycle...

It should be able to completely discharge then recharge and hold a charge.

 

[ngsm13 5,000+ posts]

The YT is a deep cycle...It should be able to completely discharge then recharge and hold a charge.

Unless they have a short or bad cell //content.invisioncic.com/y282845/emoticons/wink.gif.608e3ea05f1a9f98611af0861652f8fb.gif...

Also, check to see if the optima is still under the free-replacement warranty...

//content.invisioncic.com/y282845/emoticons/wink.gif.608e3ea05f1a9f98611af0861652f8fb.gif

nG

 

[badstang123 10+ year member]

A while back I got 4 optimas from a guy who was using them in a truck with hydraulics. He said they were all junk and just gave them to me. I took them to the local auto part store and had them tested and they all tested bad. The guy said that sometimes though if you put them on a really high charge for a couple hours you can save them sometimes. I think he had them set to charge as if you were jump starting a car. Two out of the four ended up working and lasted me a couple years. I'd be careful though because the battery can get extremely hot by doing this and has the possibility of blowing. But it's an option and you could get lucky. Just my experience for what it's worth.

 

[loopkiller 10+ year member]

The YT is a deep cycle...It should be able to completely discharge then recharge and hold a charge.

Learn about batteries before you give useless info. A deep cycle is 80% of capacity, which in a 12v battery is 10.5v. Any voltage lower than that is very harmful to the battery. And it is only safe to deep cycle a battery when you charge them immediately after the deep cycle //content.invisioncic.com/y282845/emoticons/fyi.gif.9f1f679348da7204ce960cfc74bca8e0.gif

When a battery sits in a discharged state, lead sulfate covers the plates. When that lead sulfate is left to sit on the plates for a few days, it begins to harden. Once it forms into a crystal structure (less than a week usually) the battery will not be able to produce a charge on that part of the plate that is covered by lead sulfate crystals.

So basically your battery that used to be able to produce a 13.0v charge may only be able to produce 11.0v now that portions of the plates are unusable now.