To follow is the master's answer to your query:
Subj: Re: [OM] OM4-battery drain
Date: 99-05-11 09:35:49 EDT
From: omtech@xxxxxxxxx (John Hermanson)
Sender: owner-olympus@xxxxxxxxxxxxxxx
Reply-to: olympus@xxxxxxxxxxxxxxx
To: olympus@xxxxxxxxxxxxxxx
A 4 must go through the entire "meter on" cycle with ammeter leads attached
before drain can be measured. Use a quality DVM that will read microamps
accurately. Plus lead to battery, negative lead clipped to lens mount.
Make sure ss dial is not on mechanical B or 60. While holding plus lead to
top of battery sitting in battery box, in one continuous motion, push meter
switch to battery check and then immediately to auto.
Now you must wait 90 seconds (not sure) for the meter to turn off
automatically. You'll know the meter turns off by the sudden drop in your
ammeter reading. Thgis last reading is your idle or standby drain.
A high drain 4 will be around 35 micro amps (Or .035 milli amps). A better
4 is 10 microamps or less.
John
http://www.zuiko.com
In a message dated 00-06-23 10:26:48 EDT, you write:
> Dear Z and Z's.....
> I know this has been discussed many times before....... but can someone
just
> tell me again how do I check an OM4 body to see if it has the notorious
batt
> drain problem ?
>
> Conversely, how do I tell if this problem has already been rectified.
>
> I just saw one very good looking minty OM4 black in a 2nd hand store
window.
> She seemed to be calling to me ....... looks like a good companion to my
> existing champagne OM4Ti......
>
> Peace
> TMLee
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