Laptop power toggle program that works

Hi! I need your help on this. Could you give me some directions regarding my laptops’ battery life and power? Or could you give or name a genius program to make battery life and power management easier and more convenient for me? My laptop is running Windows 7 with 32-bit memory. I wish to have a program that could switch my laptop to have “automatic” battery power instantly once it is plugged in to an external power source. It’s more convenient for me to have my laptop unplugged all day. If possible I want to eliminate the plugging and unplugging to and from an external power source. Also, I’m wondering if you could also suggest a program aside from Power Saver, which could sense a power shortage and could automatically switch back to battery power. Thanks.
