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Tank Pro 4000 PRO Expansion Battery
Cat. No. GZ-23110
Weight 80.3 lbs

Tank Pro 4000 Expansion Battery

Build out your backup system with powerful expansion batteries. You can combine as many as 4 Tank PRO 4000 batteries per Yeti PRO. This creates a robust backup system that can run essentials in your home for days on end. And because the system is modular, you can get the expansion batteries you need now and easily add on more in the future when your needs change.


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 itís 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. 

  • 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.
  • Cell Chemistry: LiFePOv(4)
  • Battery Pack Capacity: 3994 Wh (51.2 V, 78 Ah)
  • Single Cell Equivalent Capacity: 5,120 Ah @ 3.2 V
  • Lifecycles*: 4000
  • 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 
  • Yeti Pro Tank 4000
  • Tank to Yeti Pro Chaining Cable

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