im thinking of getting the screw on voltage tester that cov has to easily check this with out having to get my fluke out
Thing is, everything can test out right but as soon as you screw in an internal shorting atty, sparks can fly...so best to check out the atty. If you use protected batteries, they will stop the sparks and stop working until you charge them again or given enough time. If you use IMR's...they'll keep firing...until they release their vapor...but in the short term, your mod can get damaged like mine did.