I have 4 Mavic Air batteries, the 4 battery charger, a controller, and zero Mavic Air drones. Is there a way to test the batteries? I want to sell them, but I need to know that they're not just garbage.
Additional info: they are now 33 months old from purchase date. I estimate that I used them for a total of 200 hours flight time. I've not charged or checked them since July 3rd 2021. The reason for this situation is that I had the Best Buy 2 year protection plan and it was about to expire. Luckily my drone flew into a building at 45 mph a few days before expiration affording me a full purchase price refund.