I have a Parrot Bebop 2 drone that has not been used for many years. The one battery has now expanded and is not recognised by the charger, i.e. no longer safe to use. However, I can't remember factory resetting or even removing all the footage from the drone prior to putting it into storage. Before I sell/donate/discard it, I would like to be able to confirm in some way that it is clear of all my data. Is there a way to do this safely without a battery because I don't really want to spend $80+ on something I'm not going to use. Thanks.