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Strange hum when charging battery

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Old 02-15-2015, 11:04 AM
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Default Strange hum when charging battery
Blazer stalled on road. Then batter went dead after warning blinker left on. Charger put on and strange hum comes from engine compartment and battery will not charge.
 
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Old 02-16-2015, 06:40 PM
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Dead short in the battery
 
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Old 02-18-2015, 09:33 AM
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The hum may be coming from the charger itself, not the battery.
 
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Old 02-18-2015, 06:16 PM
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Battery will not take a charge and yeah the chargers do hum some times. But if it is pretty loud more than likely the battery is no good also so get a new one for starters.
 
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Old 02-18-2015, 06:23 PM
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You did disconnect one or both of the battery cables before attaching the charger, right??
 
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Old 02-19-2015, 10:35 AM
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Take battery to AutoZone or any of those chains and let them test it.


Might wanna check alternator will your at it..
 
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Old 02-21-2015, 06:11 PM
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Thanks everybody. Battery is bad
 
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