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Help! 500mAh in a UMX


Well-known member
+1. You could also put it in something like one of the mighty minis, they were made for 800mAh and would probably balance out.


Master member
I fly my Sport Cub S with 500mah batteries all the time especially if it is windy. I kept the Micro 1.25 JST connector and soldered in a 2.0 JST connector so I can use either size battery. Made a new hatch on the bottom so I can slide the 500 mah battery in held on with a bit of Velcro.