BetaFPV 11.1V 3S 300mAh 45C Whoop/Micro Battery 2 Pack - XT30

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All batteries must be shipped by ground (USPS First Class or UPS Ground)

These BetaFPV 3S 300mAh packs are nice and compact, designed specifically to suit the new Beta75X and Beta75X HD with a simple frame modification (see below)

Check out the rest of our mini/micro batteries, and out BetaFPV product selection!


  • Suitable for Beta75X 3S, continuous discharge rate is up to 45C, providing reliable power for the whoop.
  • High endurance power. You'll get 4.5 minutes of flight time on the Beta75X with smooth flight in a windless environment.
  • Small size and light weight, which is rare in the market.
  • This battery is packed with vibration-proof & fire-proof material and BetaFPVs battery box ensuring you get your battery in perfect condition.


  • Nominal Voltage: 11.1V
  • Capacity 300mAh
  • Cells: 3
  • Discharge Rate(Cont./Burst) 45C/75C
  • Max Charge Rate:
  • Dimensions: 16x16.5x48.5mm
  • Discharge Lead: XT30, 18AWGx50mm
  • Balance lead: JST-XH, 30mm
  • Weight: 26g


  • 2x BetaFPV 11.1V 3S 300mAh 45C Whoop/Micro Battery

How to fit this pack in the 75X Frame

If you want to update your Beta75X drone with this 3S battery, please kindly cut out these three sticks ①②③ by using scissors as shown in the following picture.