Crazyflie not turning on, on/off power button

[thetinyquad]

Hi Guys,

Just assembled my crazyflie via setup steps. I keep pushing the on/off button with my finger but it doesn't turn on. Wondering if I'm just not pushing it correctly? When I connected it to the USB, two of the opposite diagonal propellers will spin and then stop, so I assume it's working.

[Jens_Lee]

Hi thetinyquad

I experienced what sounds like the same behaviour, once i plugged in the usb, while having my battery disconnected.

Are you sure that your battery is connected and that it's charged?

[thetinyquad]

Hi, thanks for the help!

Charged it for about 45 minutes today but still didn't turn on. The battery was connected to the PCB when charging.

I did find this thread though:
viewtopic.php?f=5&t=2492&p=12556&hilit= ... ery#p12790

Multimeter doesn't show a reading so seems to be a dead battery. I will contact support.

[tobias]

The battery PCM circuit has most likely gone into under-voltage protection mode. Normally it should exit this mode when charging is applied to it. As a first step let it charge for a full day and hopefully the battery charger on the CF2 can wake it up.