Want more deals? Visit CNN Underscored’s Guide to Prime Day for wall-to-wall coverage of the best discounts to be found during Amazon’s massive sale.

I’ve tested a variety of solar generators (which are essentially portable power stations with solar panel connectivity) over the past year, running them through real-world scenarios and comparing everything from charging speeds to max wattage and how difficult they are to carry up a flight of stairs. While backup power supplies are rarely cheap, Prime Day has some serious discounts on models I have first-hand experience with. One deal that immediately caught my attention was the Jackery Explorer 2000 Plus, a portable power station that delivered impressive results in my testing process, and is heavily discounted for Prime Day. It’s one of the best opportunities to add a reliable backup power source to your home for less.

Jackery Explorer 2000 Plus Portable Power Station

The Jackery Explorer 2000 Plus might not have the bells and whistles of higher-end models, but it's impressive output and battery capacity make it a great utilitarian option. Like a reliable pickup truck, it might not be the flashiest or most nimble, but when its time to get to work, it won't let you down.