I also come with a problem with batteries. For two years I had Mavic Air with the 3 batteries, after a few months, in the guarantee I received for the first time the message with a critical battery at 40-50%, the battery was dead, no longer lit. no led. As a guarantee I will receive a new one. The problem is that after a year still a battery has the same problem, at the last pick-ups it gave me a critical battery message starting with 30 to 80% but still it recharged even with 3 lights on, following the cells I did not go far, a cell he shows me a shout message everywhere ... Today at 70% he landed with the same message, but he no longer has a light on and no longer charges, he is dead as the first battery, only that it is no longer under warranty. I am deeply disappointed with these batteries that I took to the combo pack that have around 30-35 charges. PS. For spelling errors google translate is responsible.