Speaking Of Harbor Freight...
This load tester costs fifty dollars. I own one. It will CORRECTLY load test a tiny garden tractor battery all the way up to a 160 lb 8-D battery. CORRECTLY The cheese grater type testers ...
Forum Discussion
MEXICOWANDERER wrote:
A carbon pile test is FAR MORE ACCURATE and reliable than a battery impedance test.
The old Sun VAT 26, 28, 32 and 40 tester had a big ol' carbon pile in them. Because of the way the test cables were you could put a load on the running engine charging system an see if it was still putting out adequate voltage. The only way to truly do a diode test.
