What is the funny sqare pattern under the battery ?
It is a Datamatrix 2-D barcode; see e.g. mobilecodes.nokia.com. The one on the N810 contains the WiFi and Bluetooth MAC addresses. Help, my battery keeps running down Certain applications may consume more power because of the way that they are written. One user reports that the “Pidgin” jabber/IM client was particularly bad. The CPU uses power-management techniques (e.g. changing frequency, see /sys/devices/system/cpu/cpu0/cpufreq/stats/time_in_state) to reduce load when idle, so that anything with a compute loop that does not sleep waiting for clock interrupts is going to consume battery. Other significant consumers are the display backlight, WiFi, GPS chip and USB host mode. Other reported problems: metalayer-crawler (may hang if symlinks are used), running in R&D mode. Running the WLAN not in Power-Save mode, or using an access point that does not properly support it, can cause a significant power loss (about 10x over idle). I currently have a problem with Proxim APs at work running
