Seems like the door will break again anyway. I'm using the 2" rubber bands in this Amazon.com: Black Rubber Bands Heavy Duty Rubber Bands Tactical Thick Rubber Band Wide Strong Rubber Bands Assorted Size for Hiking Backpacking Survival Industrial Supplies (60, 2 in, 3 in) : Office Products to hold the door closed, works great and don't have to worry about replacing the battery door.