Originally Posted by BThirsk
No, the 2000mah is lighter and more reserve power. You also have to get adapters for the 1800mah battery. The 1800 is a good battery as that is what I used when I first got my F45, but if the 2000mah had been listed or If I had found it, that is the one I would chose. A lot of people had got it and found if very good choice. With either battery, you can fly longer than the motor can stand. The advantage is you have Todd strong power for you flight. You should limit to about 6 to 8 minutes with the brushed motor. Just check motor heat when you are done.
The 2000mah batteries do work well. Have an 1800mah also but even after changing connectors it is a bit more difficult to change and affects center of gravity more.