Testing Batteries

Old-school Load Testing, and new-fangled Internal Resistance calculations. They all work! Nice to be able to check your batteries before they let you down. **8:14 milliohms, not megaohms.
Kingbolen BM550:
www.amazon.com...
Schumacher 100A Battery Tester:
www.princessau...
Power Fist 500A Battery Tester:
www.princessau...
Sun VAT40
www.garagejour...

[@TT-qo9dv]

I used a Vat 40 for many years. Thanks for the video 😊

[@aaronawfd]

You make me wanna go back to school.

[@r.j.sworkshop7883]

I use a combination of #4 and #3. #4 is my first unit I grab because it is small and easy to carry in my bag. #3 gets dusted off when I want more confidence to know if the battery is good or bad. As you said, no one is perfect, just more information.

[@luisbatista1103]

Great video Sir....please do video on battery chargers/maintainers I'm looking for one BIT there are 100s of units out there ....thx again great content 👍🏼

[@selrahc2061]

Have that same tester the king bolen.

[@CollectorOfThings]

I guess you could probably take the carbon pile out of one of those cheap ones (the second tester) and put it in the VAT-40

[@richardcranium5839]

sun got bought by snap on might try them for parts, just a thought

[@andreichichak5242]

milliohms not megaohms.

[@GregWellwood]

Noted in the description.

[@andreichichak5242]

@@GregWellwood Get your students to do the math. 12.6v / 0.00566 ohms -> 2226 Amps. Yikes.