bucko170 wrote:I agree with charger regarding the battery position and like the idea of having the batteries at the bottom as in Cesar's post, would it be possible to used a series of stacked 357 button cell batteries instead of the CR2 battery in order to facilitate this? I also think using LED's in the display makes a nice marriage of different technologies.
I love the idea of the display being motion activated and my vote would be for the 26mm strap.
The first idea I had was to use 3 button cells but the only ones that are powerful enough are the zinc-air batteries (used in hearing aids), they are widely available and cheap so it sounds like a good choice. The drawback however is that you can't use them in an enclosure because they depend on air to operate. You need at least 750mAh @ a minimum of 3V, and there is not much choice.
I have tested the motion activation, it works but there is a drawback. You can't really cover the watch with anything (like a sleeve) as it may unknowingly trigger the watch to display the time (and drain your battery). What I am going to use are tip touch buttons, you don't really press them, just slightly touch them. I use the same system in my domino watches, and that really works very well and is extremely battery friendly. I may end up using both systems, and de-activate the motion detector if it triggers more than x times per hour or something like that (ideas welcome).
OK, one more for 26mm .
Michel