I've been around Electronics/Electrical nearly all my life and have never seen this before.
Last year around October Lightning hit and knocked the Digital Answering machine out. It still worked but the display was messed up and didn't make any sense and couldn't change anything.
So left it alone until yesterday. Figured it couldn't hurt to change the batteries even though it was still working. So took out the batteries and it went dead as expected.
I started to check the batteries and found 3 out of the 4 AA batteries to be perfectly fine.
The fourth battery is the kicker. It reads negative .5 volt!
I replaced that battery and powered the unit back up and was able to program it.
Apparently the circuit did not like the one battery with a negative charge.
So my question or questions are;
How come the negative charge of the one battery did not affect the other batteries in a bad way?
What the heck happened to the battery putting out the negative charge (yes apparently the lightning did it)?
What exactly was the reason of the battery config with the one negative battery had on the circuit?
Should I hang on to the negative charged battery for further testing?
Last year around October Lightning hit and knocked the Digital Answering machine out. It still worked but the display was messed up and didn't make any sense and couldn't change anything.
So left it alone until yesterday. Figured it couldn't hurt to change the batteries even though it was still working. So took out the batteries and it went dead as expected.
I started to check the batteries and found 3 out of the 4 AA batteries to be perfectly fine.
The fourth battery is the kicker. It reads negative .5 volt!
I replaced that battery and powered the unit back up and was able to program it.
Apparently the circuit did not like the one battery with a negative charge.
So my question or questions are;
How come the negative charge of the one battery did not affect the other batteries in a bad way?
What the heck happened to the battery putting out the negative charge (yes apparently the lightning did it)?
What exactly was the reason of the battery config with the one negative battery had on the circuit?
Should I hang on to the negative charged battery for further testing?