Battery Voltage

[Fender5 10+ year member]

I have a HC600 that i've had for about 2 years. I haven't used it in a while and the dmm reads 7.5

should i take it to autozone to get recharged or just toss it?

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[plugitin 5,000+ posts]

get your own battery charger...that poor thing might be gone, but theres a chance its ok

 

[All_Logix 10+ year member]

I would at least attempt to recharge and see if it holds, worst case, your back where you started

 

[retrojordans 10+ year member]

You can bring it back. Need a nice charger than runs a de-sulfation cycle / charge. Call Dave the Techie @ Kinetik and talk to him about it, he will recommend a certain $120~ charger that will get this, and all your other batteries in shape.

/e usually in a 12v 1.x volts per cell = shot which is anywhere from 6.x-7.x so it could be bad but you can break down the crystallization and get some life out of it.

Good read here

Battery Sulfation Recovery

 

[Fender5 10+ year member]

alright cool. until i can get ahold of one, is it a bad idea to try to charge it off the main battery?

 

[audiolife 5,000+ posts]

alright cool. until i can get ahold of one, is it a bad idea to try to charge it off the main battery?

Using an alternator on a dead/sulfated battery is a bad idea. It is not a battery charger its a maintainer. I would use a ctek 3300 or 7002 or if money is an issue a schumacher xc-6. XC-6's can be bought at wal mart for 30ish bucks but the 70ish dollar 3300 will more than likely do a better job. Only question is what stage the sulfation is in. If it is crystalized it is a lost cause. This is why it is important to keep lead acid batteries charged.

 

[jco1385 5,000+ posts]

i got a g31 YT sitting on my back porch. been there 2 years (yellow is faded). checked it 2wks ago... 12.9v

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at 7.5v i would toss it in the recycle pile. for what you'll drop to try and revive it, go buy a new battery w/ warranty.

 

[Fender5 10+ year member]

i jumped it from my uncle's booster pack and now it rests at 12.2

i'm surprised it worked. i've been checkin lately and it hasn't dropped yet.

 

[audiolife 5,000+ posts]

I have brought some kinetiks back from as low as 4 volts before. I would get a charger on it to see how far you can get it back. Fully charged should stay at about 12.85 volts then put it on a load tester. Set it to 50 or 60 amps and it should stay above 9 volts for 10 seconds. If it doesnt it may need to be discharged a tad bit then charged back up. With a Ctek you generally do not have to do more than 1 cycle to find out if the cell is good or bad.