Disklavier

I typically get 2 hours or more on my Mark IV's PDA controller.  One 
possibility for the shorter time that you are getting is that your are 
allowing the backlight to burn longer than I am.  The duration that the 
backlight is on after each time that you touch the screen can be set 
within the system settings.  Shorter times will give longer battery life. 

Incidentally, the Li ion battery used in the Mark IV PDA controller is 
the same as used in a Sharps Zaurus PDA and these batteries can be order 
through Amazon.com for about $25:
http://www.amazon.com/gp/product/B000088EDF/104-3828949-0580734?%5Fencoding=UTF8&v=glance&n=172282 
<http://www.amazon.com/gp/product/B000088EDF/104-3828949-0580734?%5Fencoding=UTF8&v=glance&n=172282>
 I ordered a new battery a few months ago from Amazon and it works 
fine.  However, even after about 17 months ofalmost daily  use my old 
battery was still going strong giving well over one hour of use. 

Tom

jimsdca@... wrote:

> I have a Mark IV - but with the small, PDA controller.  Curious what 
> others find the battery life to be on a full charge.  Mine, less than 
> 6 months old, lasts about 1 hour before running completely down and 
> needing to be returned to the cradle.
>
> Seems short for a PDA-based system.
>
> Jim
>
>
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