We got our new battery today, Piper powered up correctly the first couple of times, now it opens a screen with four raspberrys on top and a bunch of (code?) below, the screen goes black, then back to screen with four raspberrys, then back to a blank screen over and over. Please help!
My guess is that at some point the battery ran down while you were doing something or you shut off the Pi by just shutting off the battery. You should always shut down the Pi by using the PowerOff button on the main menu in Piper and then wait 30 seconds before turning the battery off.
You are going to have to reflash the SD card and you can get directions and the 2.0 version here