Where does the 12V (13.8V) come from?

Tech Square

Technical and speculative discussion of amps, cables and other topics.

In Reply to: 12V DC power supply voltage too high posted by mc1b on September 3, 2006 at 09:40:21:

That designation normally indicated it is designed to charge or replace a 12v car-type batery (eg for a Ham radio).
13.8V is the voltage required to charge a battery.
You may find that without a load it will go to a higher voltage. Connect a 12V car bulb across it and see what you get. If it is still high, then something is blown, possibly the regulator, but impossible to say without measuring things.

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Follow Ups Full Thread

Topic - 12V DC power supply voltage too high - mc1b 09:40:21 09/03/06 (8)

Re: 12V DC power supply voltage too high - mc1b 04:47:17 09/05/06 (5)

Re: 12V DC power supply voltage too high - Lou S 23:10:40 09/05/06 (4)

The load is a "T" amp! - clifff 01:54:48 09/06/06 (3)

Re: The load is a "T" amp! - Lou S 08:13:14 09/06/06 (2)

Re: The load is a "T" amp! - Lou S 08:35:52 09/06/06 (1)

Re: The load is a "T" amp! - unclejed613 16:47:06 10/26/06 (0)

Re: 12V DC power supply voltage too high - Lou S 18:42:32 09/04/06 (0)

Where does the 12V (13.8V) come from? - clifff 01:38:51 09/04/06 (0)

Follow Ups

Where does the 12V (13.8V) come from? - clifff 01:38:51 09/04/06 (0)

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