A few months back I picked up an Ambicom WiFi card for my Zaurus. It works great - just plug it in and connect. I'm pretty sure it's this guy: http://www.ambicom.com/products/wave2net/wl1100c-cf.html
The problem is that it kills my battery - I can get about an hour of surf time before my battery goes yellow then I get the "connect to AC power" message. I'm on a pretty new battery too; I just got it this February and have only charged it about 5 times.
I can use AC power but I don't want to kill the battery prematurely. Is there some way to throttle the power consumption?
Thanks for any advice!