[NEW] TRIPLE Your Generator’s Power

When a blackout lasts for days, this Expansion Pack is the key to true peace of mind.

Each one provides an additional 2,240 Wh power to your generator. And with a double pack, that's up to 6,720 Wh of power. That’s enough to cycle your fridge for 9 days or run your freezer for over a month on a single charge.

This Expansion Battery Pack uses an advanced, ultra-safe Lithium Iron Phosphate (LiFePO4) battery designed for over 4,000 life cycles. That's 11 years of daily use.

• 67% more battery capacity — 2,240 wh
• TRIPLE your power of your generator
• Designed to last 11 years of daily use
• Advanced LiFePO4 battery
• Sets up in seconds
• Stackable & easy to store
• 3 battery pack options
• FREE Shipping & handling to lower 48
• Ships safely or we’ll replace it FREE