Battery voltage test.

Hiya all....
Tested my batteries on my Disco this afternoon. Using a decent multimeter one tested at 12.7 volts - OK, but the other tested at 36 volts?
Any ideas way that should be.
Cheers.

disconnect the battery and try it again, summat not right there, your alternator should only pu out 14.7v max

Not impossable, each cell is only 2.2 volts but could handle 6 may-be if charged at that very high voltage then it would boil dry

how about 3 batteries wired up in series?

bugbog101 said:

Hiya all....
Tested my batteries on my Disco this afternoon. Using a decent multimeter one tested at 12.7 volts - OK, but the other tested at 36 volts?
Any ideas way that should be.
Cheers.

Click to expand...

Are you sure it wasn't 3.6V if it's 36 you're alternator is fooked and there's a good chance ya battery could explode in ya face.

12V alternator would be hard pressed to put out 36V. Had a regulator fail on a Frontera a and it was putting out about 18V which over about 15 miles trashed the battery completely. Bear in mind, the difference between a 12V and 24V alternator isn't just the regulator.
Must be a measurement problem.

36v fook me you better run away from that battery a bit quick..summit aint right there