via http://www.nintendomax.com/viewtopic...e0eacac2c4a11c

Joostin Online offers version 1.2 of " PowerCheck "utility fFor the Nintendo Wii to know the precise percentage of the charge level of your wiimotes.

v1.2
now Wii Balance Board Supported
Fixed power reporting over 100% v1.1 Checks up to 4 remotes INSTEAD of just one

http://www.hacksden.com/showthread.php/3922