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:
That is a home unit and it must be allowed to cool.
I have tested three or four group 31's then let it rest.
- Find out or best guess a battery's CCA. Golf car batteries use different numbers and time
- Regular batteries use 50% of CCA rating
- 500 CCA battery test at 250 amps. Charge battery and twist dial to get 250 amps
- Watch voltmeter
- Maintain 250 amp load by twisting dial for more load
- Keep it at 250 amps for FIFTEEN SECONDS
- If the voltage sags to below NINE POINT SIX VOLTS the battery is defective
- Most bad batteries voltages collapse under a very modest load.
Thanks for the details on that unit.
Those load application times are so short that probably there's not a lot of heat to deal with if the user lets it cool long enough between those short load application times.
