Question about acquired Bebop 2

[Neozy]

Hey all!
I joined today since I am in a bit of a debate whether or not this is a good idea.
Recently picked up a bebop 2 drone that was used as a display model (all internal connectors were severed) and the model was no longer in use as the store closed down. I have soldered all new wires so internally the drone is fine. It did come with a battery but its only reading around 2-3v and I have no charger for the drone nor the money to get one right now but I want to test if the drone will at least power on (no flying) and was wondering if its safe enough to wire 3 li-ion 18650's (I have those on hand but not a li-po charger) in parallel to make the 11.1v the drone requires to power up and just turn on the drone to see if it does power up?
Thanks!

[AR.Tommy]

Hello,

while it would be enough to power up the Bebop and probably provide the video stream, I'm pretty sure it will not provide enough current drawn to fly. The Bebop 2 uses a 2700 mAh battery with a current drawn of 22A.

[Neozy]

Thanks! At this moment, any sign of life would be a sign that I can put some money into getting the battery a proper charger. The lipo's are quite discharged but they are not 0v on any of the 3 cells so I may have to trickle them from their 1.39v (per cell) to get a charger to recognize the battery again.

[AR.Tommy]

How did you measure this? Usually cells should be between 3.7V and 4.2V. I'm sure the cell is dead with only 1.4V

[Neozy]

EDIT: The cells are now hanging around 3.4v but measuring from the pins that connect to the drone 2v after a slow-charge with my D2.
Good news on the side! Drone powered up with the 3 18650's and did a firmware update and powered up successfully! Now just got to revive the battery carefully. I may use the trick of a Ni-Mh charger (my Nitecore D2) and get it above the threshold that a charger will recognize at a slow and steady 100mA.