Tank Pro 4000
- +
- +
Notify Me When Available
  • US-Based Customer Support
Essential Add-ons +

Tank Pro 4000 -

Add Compatible Accessories to your Tank Pro 4000

  • Yeti PRO 4000

    The next generation of power is here! Introducing the all new Yeti PRO 4000 portable power station
  • Tank PRO 6 ft. Extension Cable

    Extends the connection between Yeti and Tank PRO 4000 units. (6 ft Male to Female QS10 Ext. Cable)
  • Yeti/Tank PRO 4000 Mounting Plate

    Secures your Yeti PRO and Tank PRO 4000 units for stability and safety. (Mounting hardware not incl
Add to Cart

California residents: WARNING: Cancer and Reproductive Harm -www.P65Warnings.ca.gov

Tank Pro 4000
PRO Expansion Battery
Regular price $1,999.95
- +
- +
Jump To: Highlights Down icon Use Cases Down icon Specifications Down icon Video Down icon FAQ Down icon


  • Modular Scalability
    Not sure how much power you need? Not a problem. Get one or two expansion batteries now. When life changes, the modular design makes it easy to add more power.
  • Increased Capacity
    The Tank PRO 4000 has increased capacity over older models so you can power more for longer. Since it’s easy to add on more expansion batteries, you can get enough power to keep your home running for days on end.
  • Easy Integration

    The Tank PRO 4000 nests snugly with the Yeti PRO 4000 to build out your home backup system. Once connected, the two devices function as one unit and charge and drain together. 

  • Long Lifespan

    Improved LiFePO4 battery tech gives the Tank PRO 4000 an 8X longer lifespan than our previous generation expansion batteries. When you add one to your setup you get high-capacity, reliable backup power that will last for years.  

Haven 10 Home Backup System transfer switch


  • The Tank PRO 4000 charges while connected to the Yeti PRO 4000, whether you're connected to your car, an AC wall outlet, or solar panels.
  • Once the Tank PRO is connected to the Yeti PRO, they will sync. Then they'll function as one battery and charge or discharge together. 
Haven 10 Transfer Switch for Yeti Pro 4000


Our customizable backup power solutions can cover up to 10 essential circuits when you connect your power station to the Haven 10 Manual Transfer Switch. Get reliable power during outages and emergencies. Power lights, fridges, medical devices, Wi-Fi routers, and more!

Haven 10 Transfer Switch for Yeti Pro 4000


Need power for appliances in your van or RV? Keep life on the road comfortable with our Escape Ecosystem, which makes it easy to power appliances and charge devices, even when you don't have access to shore power.

    Yeti Pro 4000 Escape Ecosystem on the Road

    Goal Zero Ecosystem

    The Goal Zero ecosystem is designed to give you control over your own power solutions, whether you're looking for home backup, work site power, off-grid power, ways to upgrade your camping trips, or power on the road.  We offer portable power stations, expansion batteries, solar panels, lights, and more.

    LEARN MORE Yeti Pro 4000 Ecosystem Home Backup and RV Vehicle integration
    Frequently Asked Questions

    Frequently Asked Questions

    How long will a Tank battery last?

    The Tank PRO 4000 is built to last for 4000+ cycles.* *0.5C discharge, climate controlled, 80% original capacity.

    How long does it take to fully charge a Tank battery?

    Charging time depends on several factors, including the system size and type of power input. Charging Times for 1 Tank PRO connected to 1 Yeti PRO Fastest Charge Time, Low Power PV (Solar): <24 hours Fastest Charge Time, High Power PV (Solar): <2 hours at 3 KW input Fastest Charge Time, AC Input (Fast Charge): <4 hours

    Can I replace the Tank PRO 4000 Lithium Iron Phosphate battery?



    • Accessory Port Cable (Built-In)
      • Power (Max): 3600 W
      • Voltage: 60 V  
      • Current: 75 A 
      • Cable Length: 30 in.   
      • Cable Diameter: 17 mm
    • Accessory Port
      • Power (Max) 3600 W 
      • Voltage 60 V
      • Current 75 A  


    • Cell Chemistry: LiFePO₄
    • Battery Pack Capacity: 3994 Wh (51.2 V, 78 Ah)
    • Single Cell Equivalent Capacity: 5,120 Ah @ 3.2 V
    • Lifecycles*: 4000

    * To 80% of original capacity at 25 °C with a 0.5C charge and discharge.


        • Product SKU: 23110
        • Warranty: 5 Years
        • Weight: 80.3 lbs. (36.4 kg)
        • Dimensions: 21.4 x 13.8 x 9.2 in. (54.3 x 35.1 x 23.3 cm)
        • Discharge Temperature Range: -4-140 °F (-20-60 °C)
        • Charge Temperature Range: 32-125.6 °F (0-52 °C)
        • Warranty: 5 years
        • Compatibility: Works with the Yeti PRO 4000.


        Up To 5 Year Warranty

        Buy now, pay later