When connected to a Perun PB-20 you get 1280Wh of power (640Wh + 640Wh) doubling the runtime for optimum performance.

Charges directly through the Perun PB-20 by AC outlet, 12v or solar panels

When connected to a Perun PB-20 you get 600w of continuous running power with 1,200w peak output giving you the performance you need to power and charge a wide range of electronics, appliances, tools and more!

3 convenient charging options include: AC household electrical outlet, solar panels up to 100w or a 12v car charger when connected to a Perun PB-20

The PB-23 battery back-up works exclusively with the PB-20 power station

Specifications: Capacity 640 Wh with 600w maximum output

This is a complete kit that includes: (1) PB-23 Perun 640Wh battery back-up; (1) connection cable to PB-20; (1) Operator Manual