[1000mp] MARK V MEMORY BACKUP BATTERY

[Rob Atkinson]

noel,

i was sure this had come up before so I went through the list archive 
but only found some postings from you asking the same question before 
and not getting any help.   Apparently this is a mystery problem.   I 
can only suggest a new battery--maybe cleaning the contacts in the rig 
that connect to it, or a larger source of current like a pack of 
batteries.  it's an ugly fix I know, but loosing everything in storage 
is pretty irritating also.   It kind of seems like one of those 
situations where something has to get worse before you can figure out 
what's wrong and fix it.   The contact cleaning is suggested because I 
had an experience once where a battery's contacts oxidized over time 
because the metal was different (copper) from what the battery ends 
were.  The battery was fine--the contacts just needed cleaning and all 
was okay.  if it's not that and the battery is in fact dead then there 
is obviously some low R path draining it off perhaps though a component 
that is doing its job but has a low resistance short from + to ground.  
you might take a look at the schematic around the battery for possible 
culprits.

rob / k5uj


by the way, it would be really nice if the archive had a search engine 
associated with it so that a keyword search of the archive is possible. 
  I even tried using google but that did not work--apparently the google 
robot is prevented from crawling the archive and indexing the posts, 
which is too bad as the usefulness of the archive is extremely limited 
with no keyword searching.

On Friday, May 12, 2006, at 01:03 PM, VE2RYY wrote:

> Hello
> I wonder if anybody can tell me why I have to replace my Lithium 
> Battery in the Mark V filed every 6 or 7 months????
> What can be wrong ??/I have 2 mark v, and they have the same problem..
> Would appreciate your help please
> Regards
> NOEL
> ______________________________________________________________
> 1000mp mailing list
> Home: http://mailman.qth.net/mailman/listinfo/1000mp
> Help: http://mailman.qth.net/mmfaq.html
> Post: mailto:1000mp at mailman.qth.net
>