The kit: Essentials Power Bank is a backup battery for when you need to charge on the go and even charges two devices at the same time with multiple ports. Backup battery on the go. Don`t worry about running out of battery when you have portable power that allows you to charge your device wherever you are. Keep it in your bag, car or at work so it ready when you need backup power whether you working, commuting or travelling. Compact and lightweight. Drop it in your bag on the way out the door and enjoy ease of use throughout day and a lightweight solution to battery worries. Indicator LEDs. Don`t let your backup battery lose power with handy Indicator lights on the front that conveniently tell you how much charge is left. Charge your Power Bank up in just 2.5 hours. 1.3 Full Smartphone charges. The 2,500 mAh battery will charge an iPhone 8 back up to full wherever you are. Really useful for those who are on their phone all day.