Powering the Future of Flight
Drones, eVTOL & HAPS Battery Solutions

Enpower Greentech is a top-3 global drone battery supplier and the primary battery partner for SoftBank's HAPS (High Altitude Platform Station) program. In aviation and aerospace, every gram matters. The challenge is clear: maximize energy density while maintaining uncompromising safety and reliability at altitude.

Our patented anode technology and flame-retardant electrolytes have been validated by third-party testing and real-world deployment, enabling longer flight times, greater payloads, and safer operations across the full spectrum of aerial platforms.

Application Areas

Industrial Drones

Inspection, surveying, mapping, and delivery drones demand batteries that combine high energy density with reliable performance. Enpower's Swift series offers flexible cell capacities from 3.5Ah to 33Ah with gravimetric energy densities of 370–550 Wh/kg, enabling longer flight times and greater payload capacity.

eVTOL Aircraft

Electric vertical takeoff and landing aircraft require batteries capable of continuous discharge rates of 5C or higher with 10C pulse capability. Enpower cells deliver the power density needed for urban air mobility while meeting stringent safety requirements for passenger-carrying aircraft.

HAPS (High Altitude Platform Stations)

Stratospheric platforms require batteries for 24/7 operation at extreme altitudes. As SoftBank's primary battery partner, Enpower has delivered cells with 450+ Wh/kg verified energy density — validated through independent third-party testing.

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Technical Advantages

  • Energy density >500 Wh/kg — verified by SoftBank and independent testing labs

  • Flame-retardant electrolytes with passed nail penetration tests

  • Lightweight pouch cells vs. heavy cylindrical alternatives

  • Si-C anodes for optimal power-to-weight ratio

Production & Scalability

  • Flexible production lines for custom cell formats

  • GWh-scale production capacity planned

  • Global production facilities with GWh-scale capacity

  • Pouch, cylindrical, and prismatic formats available

Recommended Battery Platforms

SWIFT Semi-Solid State Batteries

The SWIFT platform is Enpower's flagship aerospace-grade semi-solid state battery, engineered for aviation applications — industrial drones, eVTOL, and heavy-load drones — with breakthroughs in lightweight design, flight range, temperature adaptability, and instant power response. With energy density up to 403 Wh/kg and over 3 million cells delivered, SWIFT is proven at industrial scale.

Learn more

FLEET Quasi-Solid State Batteries

FLEET pairs a lithium-metal anode with a quasi-solid electrolyte to hold stable power output in the extreme cold and high radiation of the stratosphere, down to -60°C. With cell energy density up to 525 Wh/kg, FLEET powers pseudo-satellites and high-altitude drones for weeks or even months — a key energy carrier for 'never-landing' airborne base stations.

Learn more

Get in touch.

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