Upgrade Energy Dark Lithium 22.2V 6S 21700 4200mAh 25C Li-Ion Battery - XT60

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Upgrade Energy Dark Lithium series is the new product line designed to dominate the long-range FPV market. With a higher capacity, lower internal resistance, and a lower pack temperature, this battery will provide flight times and punch like no other battery on the market. Upgrade Energy has built the best Li-ion pack through extensive research and lab testing.

Check out our Lithium Ion batteries, cells, chargers, and the rest of our Upgrade Energy Selection!


  • High-quality, long-lasting power designed and made in the USA
  • Utilizes the highest current 21700 Li-Ion cells on the market
  • Higher capacity and lower weight than a similar-sized LiPo
  • Copper tabs throughout differentiate us from the competition
  • Designed through thermal analysis for optimal heat dissipation
  • Optimized power and balance lead lengths for minimal weight and wire tangle


  • Cell Type: Molicel P42A 21700
  • Nominal Voltage: 22.2V
  • Cells: 6
  • Capacity: 4200mAh
  • Discharge Rate (Continuous): 25C / 45A
  • Dimensions: 7.6cm x 3.8cm x 3.8cm 
  • Discharge Lead: XT60
  • Balance Lead: JST-XH
  • Weight: 420g


  • 1x Upgrade Energy Dark Lithium 22.2V 6S 21700 4200mAh 25C Li-Ion Battery - XT60