The GEN II LSE lithium ion prismatic cell design has been in production since 1999. Multiple cell designs have successfully completed space qualification programs and thousands of LSE Heritage cells have been on orbit for as long as 6 years without incident.

GYLP’s advanced modeling capability allows us to work with your vehicle’s duty cycle data to determine the optimal cell and battery configuration to best match your mission requirements.


  • High energy density
  • Excellent discharge characteristics
  • Excellent cycle life
  • Sealed structure
  • Elliptic cylindrical shape for efficient packing and battery design.