(quoted from post at 02:47:23 01/23/17) Hello sotxbill,
The advantage of a DSO appeared the price became somewhat affordable manufactures expanded their functions. Tooling such as low/high amp clamps that will also work on a DVOM became inviting. The number one tool I use diagnosing a starting/charging issue is a DVOM with a high amp clamp.
The number one recommendation on most any forum is to take it off/out and run down to a parts store for a free check. Parts stores are not gods and know no more than you do. The very BEST way to check a battery, starter, alternator is where it lives and does its work on the car. This pattern answer dumbs down every one in the community but pleases the parts god’s. The parts gods use a machine that for all involved possess magic that goes again the grain of everything I have ever learned about battery state of charge. The only work involved is hook it up with two simple connections answer a few simple questions and push buttons. No matter what it reads more than likely a sale will be made the owner is not going thru this routine every few days. If a battery sale is not made a alternator sale is the next logical answer it’s like magic the parts god win’s.
The alternator did not fix it he returns and is sold a battery the parts gods double up. A year down the road the issue returns it must be the battery BUT that fancy magic box passes it NO replacement battery is issued the magic box is always right it’s a god that cannot be questioned modern technology trumps. He spends the day driving around till he stumbles on a shop that has a load tester and knows how to use it, they have the capability to check the charging/starting system and rule it out. The battery is condemned no doubt he now is armed and can demand a replacement battery no matter what the magic box has recorded.
Vegas could not dream up a better advantage for the house throw in the possibility the DIY guy will fudge up other parts in the system in his attempts it’s a win win win for the house.
The use of a voltmeter is not a lost art it’s diagnostic capabilities are still being discovered every day it will take generations of applying it to bring it to the foe front. Things like a little magic box keep the DIY dumbed down so the house can win. A load tester coupled with a DVOM and amp clamp are still the undisputed world champion that's is the lost art.
(quoted from post at 09:54:52 01/22/17) I think you have failed quiz-making 101. Your premise and posit was based upon two identical batteries. Are we supposed to follow your actual words or try to make sense of conflicting art-work?
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