Hi Ive got an EZb but when I plug it into the battery power it will not come on (No lights ) It was working for a week when i used it to power two servos and learn the software. Then I changed the batteries it worked for 10 min then stopped. I have checked that the battery pack powers other things, but it wont power the ezb. is there a fuse ? ..or is it somthing more serious. Worried madrobotman