Testing 12v feeder batteries?

[toledo]

What's the best way to test to make sure they're still good? Can the auto parts store test them?

[txtimetravler]

Buy a tester…

[mpotts]

Tester

[forced-2-work]

Tester or volt meter. I use a volt meter to test ours


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[M16]

Volt meter. It will tell you more than just voltage.

[Bone Thug]

Volt meter

[GarGuy]

Touch your tongue to both posts at the same time. You will know instantly

[dustoffer]

Need to do the voltage test under load when the motor spins-just like on your car/truck.

[brokeno]

Harbor freight volt meter. Ez

[toledo]

I have a good volt meter. How do I go past just reading the voltage? Seems I have some that charge fine but are dead again before they should be.

[smokeless]

A volt meter will only tell you the voltage. You need to do an amp draw.

[toledo]

A volt meter will only tell you the voltage. You need to do an amp draw.

So how do I do that?

[Patton]

So how do I do that?

Get a multimeter instead of strictly a voltage meter.

[gingib]

VOltage meter will be quick and easy. They are less then $20 on amazon

[Mudcatz]

I have a good volt meter. How do I go past just reading the voltage? Seems I have some that charge fine but are dead again before they should be.

Test you solar panel too. Hook battery to motor, hook voltmeter to battery with no solar charger you should get a reading around 12.7volts. Test motor now, if it drops voltage way down then don’t pop right back up to 12.7 volts bad battery. Then while solar charger is disconnected test the leads on it If I remember correctly in the sun you should get a reading around 17volts.