Pokemon Go is an absolute blast, but it can drain your phone’s battery like a rampaging Electabuzz. If you want to go out on an all-day Poke-venture, you’re going to need to keep charged, so we’ve rounded a bevy of portable smartphone batteries that’ll have your phone humming like handful of happy Voltorbs.
Before we dish out the recommendations, here’s what you should know about buying a smartphone battery: First, battery capacity is measured in milliampere-hours, or mAh. The iPhone 6s has a 1715 mAh battery, the 6 Plus has 2750, and the Samsung’s Galaxy S7 has a 3000 mAh battery. The next stat to worry about is output, which determines how quickly a battery can charge your phone. This is measured in amps; while some batteries are only 1 amp, every battery in this round up is at least 2.1, so they can charge your phone at a reasonable rate, and won’t take all day to charge larger devices like tablets.
Source: IGN Video Games
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