NASA’s Ingenuity Mars Helicopter received a checkout and recharge of its power system on Friday, Aug. 7, one week into its near seven-month journey to Mars with the Perseverance rover. This marks the first time the helicopter has been powered up and its batteries have been charged in the space environment.
Source:
https://phys.org/news/2020-08-ingenuity-mars-helicopter-recharges-batteries.html