meter damage

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meter damage Posted by MrBubble (more from MrBubble) on Tue, 19 Jul 2005 13:29:00

In Reply to: Ain't clairvoyance, Ari

[Profile/Gallery] , Tue, 19 Jul 2005 06:47:56 Members see ZERO ads on the bulletin boards and get more feature. - Help Keep This Site Online - Signup

If you're using a milli-amp capacity amp meter in series in the battery circuit to measure the current draw with everything turned off, you need to be careful, even though the draw is probably pretty low. What seems to happen is the initial draw is kind of a little surge - the radio's clock is being reset, other always-on stuff is getting going. After fraction of a second, the draw will drop. But, the intitial surge may take out your meter.

You could run a testlight or a plain wire in parallel when you first connect up the battery lead, then drop it to get the stable current level.

posted by 129.42.16...

Posts in this Thread:

Help with battery drain diagnosis...., Chris M, Tue, 19 Jul 2005 03:46:24
- new device available to help stop dead batteries!!!, gavin, Tue, 19 Jul 2005 21:56:29
  - Only prevents one kind of fault, Ari , Wed, 20 Jul 2005 08:37:28
    - Seems rather expensive..., Chris M, Wed, 20 Jul 2005 09:28:47
- Re: Help with battery drain diagnosis...., Ari , Tue, 19 Jul 2005 05:26:14
  - Thanks Ari, Chris, Tue, 19 Jul 2005 06:20:26
    - Optima = excellent battery, John Fitzgerald , Tue, 19 Jul 2005 12:18:02
      - Thx!....n/m, Chris M, Tue, 19 Jul 2005 12:58:05
    - Ain't clairvoyance, Ari , Tue, 19 Jul 2005 06:47:56
      - meter damage, MrBubble, Tue, 19 Jul 2005 13:29:00 <-- Viewing This Message
      - I see, Chris M, Tue, 19 Jul 2005 11:48:12
      - I see...., Chris M, Tue, 19 Jul 2005 11:43:45

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