Cheap Reliable Battery Load Testing
https://www.harborfreight.com/500-amp-carbon-pile-load-tester-91129.html Bulletproof way to test wet and AGM batteries Like a hospital heart stress test EDIT: Fixed the URL.
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I also have 5 digit volt meters and 3 separate ammeters. Two inductive including a Fluke and one shunt type which uses a 1000 ampere shunt 100 mv Manganin type traceable to NIST. The HF is no more inaccurate than an Auto Meter, Sun VAT 40 or Snap On AVR I have used. My unit reads just under .2 volts high at 9.6 VDC. My bench DMM needs decertification again. Last time it has drifted seven ten thousandths of a volt low.
For hand grenade testing it is satisfactory to me. It was a $5,500 purchase in lieu of cash payment.
The validity of my AGM Load testing was approved by Concorde. I do not care to acquire the technique to test lithium batteries.
For hand grenade testing it is satisfactory to me. It was a $5,500 purchase in lieu of cash payment.
The validity of my AGM Load testing was approved by Concorde. I do not care to acquire the technique to test lithium batteries.
