Skip to product information
1 of 2

Freefly Astro Max SL8-Air Battery

Freefly Astro Max SL8-Air Battery

Regular price $695.00
Regular price Sale price $695.00
Sale Sold out
Shipping calculated at checkout.

SKU:S-FF-SL8-AIR-BAT

SKU S-FF-SL8-AIR-BAT MPN 910-00649
  • 21.6 V / 7.3 Ah (157 Wh) capacity for Astro platforms
  • Designed and assembled in the USA for quality assurance
  • Integrated smart battery management system for safe operation
  • OLED screen shows charge, voltage and health data
  • USB-C Power Delivery port up to 60 watts output
  • Airline-carry compliant (157 Wh each) for easy travel
  • Rapid recharge in around 90 minutes per battery
  • Two required per Astro aircraft flight configuration
  • Lightweight design around 2.25 pounds (1.02 kilograms)
  • Rugged housing built for field durability
View full details
  • Description
  • Specifications
  • In the Box
  • FAQ

Freefly SL8-Air Battery: Intelligent, travel-safe power for Astro series operations

The Freefly SL8-Air Battery delivers efficient, intelligent energy for Astro-series drones, combining safety, performance, and portability in one compact design. Each 21.6 V / 7.3 Ah (157 Wh) lithium-ion pack integrates seamlessly with Freefly's power system to ensure consistent output and accurate telemetry throughout every mission. Designed and assembled in the USA, the SL8-Air Battery provides the reliability professionals depend on for mapping, inspection, and industrial flight operations.

Smart energy management for reliable missions

An integrated smart battery management system actively monitors voltage, current, and temperature to maximize safety and lifespan. The bright OLED display reports charge level, voltage, and health data at a glance, while the USB-C Power Delivery port supplies up to 60 watts for field charging of accessories. Each lightweight, airline-carry-compliant pack recharges in roughly 90 minutes, minimizing downtime between flights.

Portable, durable, and field-ready

At about 2.25 pounds (1.02 kg), the SL8-Air Battery balances capacity with portability. Two packs power each Astro aircraft flight, providing redundancy and extended endurance. Its rugged build withstands field conditions while maintaining dependable energy output for critical operations. Compact, smart, and travel-approved, it's engineered for professionals who require safe, efficient power anywhere missions take them.

Key Features and Benefits

  • 21.6 V / 7.3 Ah (157 Wh) capacity: Delivers balanced energy for Astro platforms
  • Designed and assembled in the USA: Ensures NDAA-compliant quality and sourcing
  • Integrated smart battery management system: Monitors voltage and temperature data
  • OLED display: Shows charge level, voltage and battery health instantly
  • USB-C Power Delivery port (60 W): Charges devices directly in the field
  • Airline-carry compliant (157 Wh): Simplifies global travel with Astro systems
  • Rapid recharge (~90 min): Minimizes downtime between missions
  • Two required per Astro flight: Dual-battery redundancy for extended endurance
  • Lightweight design (~2.25 lb / 1.02 kg): Portable and balanced for field use
  • Rugged construction: Resists impact and vibration during transport and deployment

Applications and Use Cases

  • Long-duration mapping: Consistent energy for survey and photogrammetry missions
  • Infrastructure inspection: Reliable dual-battery power for industrial tasks
  • Public-safety operations: Portable energy for on-site mission readiness
  • Media production: Stable power for professional aerial filming sessions
  • Environmental research: Dependable battery life for remote field work
  • Construction documentation: Extended flights for site progress updates
  • Industrial monitoring: Continuous operation for asset assessment
  • Training and testing: Quick recharge and swap for multi-cycle sessions

The Freefly SL8-Air Battery offers advanced power management and rugged reliability in a compact form factor. It keeps Astro platforms operating efficiently with accurate telemetry and travel-safe design for global field use.

DSLRPros provides genuine Freefly components and expert support to maximize Astro system uptime. Buy now to power your missions with verified Freefly performance.

  • Gives Astro up to 37 minutes of flight time, per pair
  • See the wiki for estimated flight time details
  • Voltage: 21.6 V (6S)
  • Capacity: 7.3 Ah, 157 Wh
  • Weight: 2.25 lbs
  • Chemistry: Lithium-Ion
  • Auxiliary output: USB-C Power Delivery (up to 60W)
  • Includes pre-installed ESD sticker, per SB007
  • Designed and Assembled in USA
  • 1x Freefly Astro Max SL8-Air battery (157 Wh)
How many SL8-Air batteries does an Astro aircraft require for flight?

Each flight on an Astro platform requires two SL8-Air batteries installed.

What flight time can be expected when using two SL8-Air batteries?

Two SL8-Air batteries can support up to approximately 37 minutes of flight time under test conditions on Astro.

Does the SL8-Air have built-in battery management?

Yes, it features a built-in micro-processor that manages charging, discharging and health monitoring.

Can the SL8-Air charge other devices in the field?

Yes, it includes a USB-C Power Delivery port capable of up to 60 W, enabling charging of phones, tablets or other accessories.

What is the capacity of an SL8-Air battery?

Each SL8-Air offers a capacity of 7.3 Ah (157 Wh) at 21.6 V nominal.