Checking a lead-acid battery

[dougsr.874]

From this question you will know I am a novice at electrics.....question:...how can you tell if a 12 volt LA battery is good and will hold a charge?...the charger indicates charged and a volt meter says its producing at least the 12 volts, but the battery dies immediately when put under load.

 

[Al.Fisherman]

From this question you will know I am a novice at electrics.....question:...how can you tell if a 12 volt LA battery is good and will hold a charge?...the charger indicates charged and a volt meter says its producing at least the 12 volts, but the battery dies immediately when put under load.

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Either the battery needs to be replaced or the charger is not putting out. For example a 12V battery in a car, the alternator should put out between 13.8 and 14.0 volts.

 

[lazaruslong]

you can take it to almost any mech and they can do a load test on the battery but from the sounds of it that battery is gone--most charger will only read a surface charge but a load meter reads what the battery is putting out

 

[Al.Fisherman]

Umm posted 7 days ago...I guess he has taken care of it.
Forgot to add

Free battery test
Auto Zone
Advance
O'Rileys to name a few

 

[olow]

probably had a dead short