Extra 1548Wh Capacity: Compatible with FlashSpeed 1500. Easily connect an extra battery with FlashSpeed 1500 through a cable and quickly add 1548Wh capacity to your power station.
Fast Charging: Connecting the extra battery to the FlashSpeed 1500 and plugging it into a wall outlet allows for a full charge in just 2 hours, enabling you to go further and longer. Reduce your reliance on the grid and achieve energy independence.
Durable & Economical: With an extra battery, it can provide more juice to run your essential devices and appliances for hours.
Super Safety: The ultra-safe LiFePO4 battery with built-in LIFEBMS™ system lasts for over 3000 cycles.
Money-saving Solution: With an extra battery, the VTOMAN Power station can power essential devices and appliances for hours. Only $0.20 average cost per 1000wh.