engine = peripheral.wrap("back")

while (true) do

	rfstore= engine.getEnergyStored("unknown")



	while (rfstore > 1000000) do
		rfstore= engine.getEnergyStored("unknown")
		sleep(60)
		print ("slow_check: "..rfstore)
	end

	if (rfstore <= 200000) then

		engine.pullItem("up",1,20,1)
	end
	print ("fast_check: "..rfstore)

	sleep(10)
end