The Ford Barn

doug.nichols · 03-01-2022, 11:38 AM

Would a 12V 12Ah battery be sufficient to bench test a 12V ahooga horn?

Herb Concord Ca · 03-01-2022, 06:50 PM

Should be. Horn motor only draws 4-5 Amps.

J Franklin · 03-01-2022, 07:06 PM

I use my battery charger to test different electrical devices and it works well.

nkaminar · 03-01-2022, 09:22 PM

It depends on the internal resistance of the battery. Measure the voltage when testing the horn. Small batteries have more internal resistance. If the voltage is low the horn will sound weak. Remember that the voltage will be about 14 volts when cruising down the road so the horn will sound different in the car when driving. You will be able to see if it turns over but may not be able to test the sound quality.

Synchro909 · 03-01-2022, 09:25 PM

Quote:

Originally Posted by nkaminar

It depends on the internal resistance of the battery. Measure the voltage when testing the horn. Small batteries have more internal resistance.

IMO, we are talking here about a horn designed to run on 6 volts. I doubt any charged 12 volt battery would not be able to run it.

Synchro909 · 03-01-2022, 09:25 PM

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Quote:

Originally Posted by nkaminar

It depends on the internal resistance of the battery. Measure the voltage when testing the horn. Small batteries have more internal resistance.

IMO and with respect, we are talking here about a horn designed to run on 6 volts. I doubt any charged 12 volt battery would not be able to run it.

nkaminar · 03-02-2022, 08:22 AM

Synchro, Doug specified that it was a 12 volt horn. Go back and re read his original post.

doug.nichols · 03-02-2022, 11:35 AM

Thanks to all.

Doug

03-01-2022, 11:38 AM	#1
doug.nichols Senior Member Join Date: Apr 2015 Location: Olga, WA Posts: 184	Horn Bench Test Would a 12V 12Ah battery be sufficient to bench test a 12V ahooga horn?

03-01-2022, 06:50 PM	#2
Herb Concord Ca Senior Member Join Date: May 2010 Location: Concord CA Posts: 637	Re: Horn Bench Test Should be. Horn motor only draws 4-5 Amps.

03-01-2022, 07:06 PM	#3
J Franklin Senior Member Join Date: May 2010 Location: Oregon Posts: 5,966	Re: Horn Bench Test I use my battery charger to test different electrical devices and it works well.

03-01-2022, 09:22 PM	#4
nkaminar Senior Member Join Date: Jan 2012 Location: Western North Carolina Posts: 3,904	Re: Horn Bench Test It depends on the internal resistance of the battery. Measure the voltage when testing the horn. Small batteries have more internal resistance. If the voltage is low the horn will sound weak. Remember that the voltage will be about 14 volts when cruising down the road so the horn will sound different in the car when driving. You will be able to see if it turns over but may not be able to test the sound quality. __________________ A is for apple, green as the sky. Step on the gas, for tomorrow I die. Forget the brakes, they really don't work. The clutch always sticks, and starts with a jerk. My car grows red hair, and flies through the air. Driving's a blast, a blast from the past.

03-02-2022, 08:22 AM	#7
nkaminar Senior Member Join Date: Jan 2012 Location: Western North Carolina Posts: 3,904	Re: Horn Bench Test Synchro, Doug specified that it was a 12 volt horn. Go back and re read his original post. __________________ A is for apple, green as the sky. Step on the gas, for tomorrow I die. Forget the brakes, they really don't work. The clutch always sticks, and starts with a jerk. My car grows red hair, and flies through the air. Driving's a blast, a blast from the past.

03-02-2022, 11:35 AM	#8
doug.nichols Senior Member Join Date: Apr 2015 Location: Olga, WA Posts: 184	Re: Horn Bench Test Thanks to all. Doug