Go to autozone or advanced and buy the battery. Tip the kid or elder $20. Take your self out to dinner

I have been running my tanks dry for 17 years. Tanks usually have issues with those who keep the tank topped off or half way because the more fuel in the tank the more water the ethanol attracts, the more water in the tank means more rust & bad gas & you run into issues. Running it dry allows you to use ip all the ethanol & water ij the tank in smaller amounts vs allowing it to accumulate. Now if you use ethanol free gas you are good to go, but run it til the light comes on.