colinbes

I have debian distro running on BBB and have installed a LCD4 cape and an external battery (per http://www.element14.com/community/community/knode/single-board_computers/next-gen_beaglebone/blog/2013/08/10/bbb--rechargeable-on-board-battery-system) Question is, how does one go about shutting down BBB and LCD4? Executing halt command (via ssh) or pressing power button does shut the processor down but not the voltage rails to the LCD4 and backlight stays on. Suggestions appreciated. ~C