Originally Posted by ChillPhatCat
The battery is probably fine. You need to get the prop off and attach the correct sized prop to it and not backwards. They are highly inefficient in that configuration. What happened to the plane that it came from and the propeller/hub that it had? You just cannot attach a prop to the motor like you did, it will not hold up.
The plane had been in a crash, and had a broken prop. i ordered the correct size prop earlier today, hopefully will come Saturday!