Sorry about the meter, but glad we could help so far. I have a analog clamshell meter my now deceased RCA mentor reccomended, and s Fluke HFT copy. The digital HFT coupon special gets the most use in case in case I drop it. The new lead pack probably cost as much as the meter. did. If you are looking to buy a meter localky, testing your alternators should be done happily at the store. That should eliminate a suspected diode issue.Hey Mike, thanks or making me think a little more in depth. As I just told 7991LXnSHO, after you, him, and Wayne mentioned the inconsistencies, I checked the meter yet again. It measured voltage and ohms just fine, but I could not get it to measure amperage, at least not consistently. I double checked the fuse, and the battery, but neither seemed to be the problem, so I took the back off of the meter, and discovered a burnt trace, so obviously, it was working only when it felt like it. I ill purchase a new meter tomorrow, and hopefully get to the bottom of this electrical system.