The best portable AC power supply
By Mark Smirniotis This message was produced in partnership with The Wirecutter, a buyer's guide to the best technology. When readers choose to purchase the editorial choices chosen by The Wirecutter, they can earn affiliate commissions that support their work. Read the full article here. If you want to power or charge a small AC device, such as a laptop, when power outlets are out of range, you must purchase the ChargeTech portable power plug (27 amps / hour). It's essentially the same as a USB battery, but with a higher capacity and a power outlet. The ChargeTech stood out among the small models that we tested because it offered the best balance between size, capacity and price. If you need to power more than a laptop or other small device, but a gas generator is out of the question, we love the Goal Zero Yeti 400 solar generator for its superior capacity, power and superior workmanship - even if it's too big and too heavy to lug around all the time. For whom is thi