Woot offers ACOPOWER PS100 Power Station, 154Wh Portable Solar Generator,110V/200W AC Outlet for Outdoors Camping for $134.99 (orig. $189.95). Free shipping for Prime Members.

Product Description:
The ACOPOWER PS100 portable power station gives you the extra boost you need no matter where you are, or what you need to power. The ground breaking pure sine wave AC inverter will power your drone batteries, CPAP machines, lights, mobile devices, power tools and laptops. The PS100 packs enough power to keep your refrigerator and other electronics running during power outages and can easily stay charged with our solar powered panels, regardless of the situation. 
Why Pure Sine Technology?

• Electronic devices need AC power to operate, but power inverters generally output power in two forms, modified sine wave vs. pure sine wave. Simply put, pure sine wave power flows in even, arching waves, whereas modified sine wave power flows to your devices in chunky, square waves

Key Features

• Never run out of power with this portable and safe power station because it provides 200+ hours of battery life and features a lithium ion battery as well as a pure sine AC inverter.
• Equipped with several port options this power station can be used for a wide range of devices, including phones, laptops, drones, CPAP machines and portable fridges.
• Charging via solar panel (not provided) or wall power outlet. Includes SOS and strobe setting.
• Lightweight, fits perfectly in a backpack, and durable with it's 154Wh li-ion NMC Battery, which only needs to be charged every 3-6 months!