Think Safety
When working with Batteries, Electric Models, Motors & Propellers, Chargers & Electrical Devices
 

ALWAYS DISCONNECT THE BATTERY 

or other electrical power source from any motor, device or charger when transporting, storing, not using or when you are not in attendance.
 
Keep hands, tools, clothing and all foreign objects well clear of equipment prior to and during operations. Take particular care to safeguard and protect your eyes and fingers and the eyes and fingers of other persons who may be nearby.
 
STAY CLEAR OF PROPELLER. PROTECT YOURSELF & OTHERS AT ALL TIMES
 
Use only a good quality propeller that has no cracks or flaws. Ensure propellers are securely attached. Stay clear of the propeller and stay clear of the plane of rotation defined by the propeller prior to connecting your battery to any motor or power system.