The Best Portable AC Power Supply

If you want to power or charge a small AC device, such as a laptop, when the power outlets are out of range, you must purchase the ChargeTech Portable Power Jack (27 Ah). 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. The size of a small bound book is compact enough to fit in a laptop bag, backpack or carry-on bag, but it holds enough energy to fully charge a large laptop or load more models. small two or three times. 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. Best Portable Power Supplies

Most mobile electronics can be easily recharged from USB batteries, all smaller and less expensive, and built with fewer complex circuits than the peaks in this guide. But a pack with a standard power outlet is a more versatile power source, suitable for bizarre situations where USB will not do the trick. For example, if you often work away from a traditional office, or if you have a laptop with a lower battery life, a portable power supply allows you to go further than just the table near the cafeteria. If you are in the car for hours with your family, a package can keep the toys and games charged so that cranky kids (and adults) stay entertained. If you are a frequent flyer, you can plug a laptop into a long flight without having to pay a premium for a seat with a plug - without the need to carry single-use adapters. The more power you need, the more expensive and cumbersome AC power is.

After more than 20 hours of testing, the ChargeTech Portable Hard Cover Socket (27 Ah) has emerged to gain a place in our backpacks and laptop bags. This pack of 2 lithium batteries gave us a handful of charges for a tablet, a few charges for a small laptop, or an extra charge for a large laptop - however, a smaller and cheaper pack that we tested was able to Get our 2012 11 inch MacBook Air up to about 50% of a full charge. Although the Portable Power Outlet is not cheap enough to be an impulse purchase, many laptop users will have many opportunities to enjoy it.

Goal Zero's Yeti 400 solar generator is based on larger lead-acid batteries that make it much bigger and heavier than the ChargeTech portable plug - this 30-pound block can barely fit in a can of milk. standard plastic. But the Yeti 400 offers about four times the capacity of the portable power outlet at half the price. You also get more versatility with a pure sine wave inverter that delivers 300 watts of power, surpassing the ChargeTech unit's 90-watt power. And if you power multiple devices, this model Goal Zero not only provides a power outlet and two USB ports like the ChargeTech, but also a second power outlet, three outlets and the ability to charge with optional solar and auto accessories. If you have the budget and do not need to carry your battery, the Yeti 400 is the most reliable way to get a lot of power without using a gas generator. Best Portable Power Supplies

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