Amazon Prime subscribers can jump on a pretty nice deal happening on Ecoflow’s laptop power bank that can deliver up to 140W of power through either of its two USB-C ports. You can snag the limited-time deal happening on the black or silver-colored models for $48.99 (originally $85.79) at Amazon. The 25,000mAh / 90Wh battery is TSA-approved, and can supply a total of 170W to up to three devices sipping from it at once.