State of charge on a wifi power strip.

So I had an idea this morning, now that I have converted this power strip to a wifi power strip I can turn on per plug, I will turn on two of the power strips when battery reaches 70 percent of charge, Then when it reaches 90 percent of charge I will turn on the other two. So I can run lower wattage loads at different power levels of the battery. Each plug has it's own led so I can look at the strip and know state of charge of the battery.