Sea LiOn™ 3.0: 3-Hour Battery-Powered Tankless Dive System

A battery-powered tankless dive system for multiple divers from one floating unit. Built for shallow diving, lobstering, and family fun. This surface-supplied air system features easy-swap batteries for extended runtime. Built in South Florida since 1969.

Brownie’s exclusive Variable Speed technology dynamically adjusts the compressor’s speed to match diver air demand. At lower demand, the speed decreases to conserve battery power, while at higher demand, it increases to deliver maximum airflow.

The Sea Lion delivers the power of a gasoline-powered system—without the fuel!

Includes: motor/compressor assembly, storage case with impact-resistant HDPE cover, and 7-foot heat hose with easy-to-clean in-line particle filter.

• Power: .75 hp sealed DC motor powered by (1) 70 amp-hour Lithium Ion Battery (Sea Lion Sport comes with 50 amp-hour battery)
• Compressor: Single Head Direct Drive Oil-less
• Run time: Up to 3+ hours with easy-swap batteries, sold separately
• Maximum Depth Selector: Dial in your Depth to Preserve the life of the battery (not included in Sport)
• Maximum Depth Rating:
  • 2 divers to 45 ft
  • 3 divers to 33 ft
  • 4 divers to 15 ft
• Weight:Unit 22 lb | Battery 15 lb | Gear Bag 35 lb
• Dimensions in Storage Case: 17″ L x 24″ W x 14″ H

System Comparison

Swapping the Sea Lion battery is as easy as 1-2-3. This Brownie’s Third Lung surface-supplied dive system lets you quickly replace the battery so you can get back underwater faster.

• Up to 3 hours run time
• Easy swap lithium ion battery with spring loaded contacts
• Variable speed algorithm – system turns on and off based on diver breathing demands
• Maximum depth selector for higher efficiency modes
• Visible LED battery level indicator
• Total unit weight 53 lb (mounted in pan, with battery)
• Recreational diving performance: 2-4* divers 0-33ft on the Standard package. 2 divers to 60ft with the PRO Package (*with the purchase of the add-a-diver kit)
• An accumulator tank that provides a buffer of air between the compressors available air output and the demand the diver is requiring
• Completely recharge battery in 6 hours with a 24 Volt, 70.4 Ah (1774 Watt-hour) lithium ion battery pack with a 110v/220v charger.

Fuel-Free Sea LiOn™ Delivers Gasoline-Level Diving Performance

 

The dial at the top of the system allows you to select your maximum dive depth in order to achiever longer run times. ​Choose between 15, 25, 35, and 65 feet of maximum depth. When the system is switched on, the compressor will pulse on startup to confirm which option has been select.

• One pulse: 15 feet
• Two pulses: 25 feet
• Three pulses: 35 feet
• Four pulses: 65 feet