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The best portable AC power supply
By Mark Smirniotis This post was done in partnership with The Wirecutter, a buyer's guide to the best technology. When readers choose to buy The Wirecutter's independently chosen editorial picks, it may earn affiliate commissions that support its work. Read the full article here. If you want to power or charge a small, AC-based device such as a laptop when power outlets are out of reach, you should get the ChargeTech Portable Power Outlet (27 amp-hours). It's essentially the same thing as a USB-only battery pack, but with higher capacity and an AC outlet. The ChargeTech stood out among the small models we tested because it offered the best balance of size, capacity, and price. If you need to power more than just a laptop or some other small device but a gas generator is out of the question, we like the Goal Zero Yeti 400 Solar Generator for its higher capacity and output, as well as its top-notch build quality—even if it's too big and too heavy to lug around all the time.
