OEM BLADES ARE OK ,but I highly recomend MASTER AIRSCREW (4 drones and five years) NEVER AN ISSUE
IN reading everyone elses response looks like all of us feel the same way MASTER AIRSCREW RULES 100 %
You must have DJI's blessing in order to fly ,yep it is a nessesary evil ,thee are several good resons why .In the beginning years ago I was kinda peeved about it all ,but it all really does make since
WHEN using same batteries in mini 3 then mini 4 ,I never bother doing batteries NEVER had an issue
When I purchased the Air 3s several months ago I never did the batteies again not having any issue
I change props when they get damaged or feel brittle
I experaminted several years ago using a mini 2 getting my props on ebay with NO name props .BIG mistake.Stick with a good name brand .All my drones sport Master Airscrew five years and counting ,they have never let me down
New thechnology is all well and good HOWEVER the new smart return to home feature is only as good as LIE-DAR works properly ,It has already failed me when it comes to POWER lines my Air 3s was near by and I was paying attention POWER lines are worse than trees I was lucky and stopped my bird...