Default size should be the same as dragging a file icon to the desktop. Appears to be 32x32. Minimum size should still show the entire icon. (suggest sticking to 32x32)
Git commit a1cc7f6d7d842e29ed830fbe55e036afda763b13 by Viranch Mehta. Committed on 07/06/2012 at 21:55. Pushed by viranch into branch 'master'. Set a minimum and a default size when the battery monitor is on desktop M +2 -0 plasma/generic/applets/batterymonitor/contents/ui/batterymonitor.qml http://commits.kde.org/kde-workspace/a1cc7f6d7d842e29ed830fbe55e036afda763b13
Fixed.