Portable Charger TeckNet High-Speed Charging Power Bank 20000mAh - Ultra High Capacity External Battery Compact Smaller Lighter Weight with Dual USB Port Output for iPhone, iPad Samsung Galaxy More

TeckNet 20000mAh Power Bank High Capacity-20000mAh high capacity could charge your mobile device like smartphone/ipad about 4-7 times. High-Speed Charging Dual USB Outputs - Dual 3A outputs could charge 2 devices at the same time. Multi-Protect Safety System Our power pack could identify the voltage compatible with your device automatically and start the safety protection to prevent overcharge, overheating and short-circuit . Warranty 18-month warranty and friendly customer service. Product Specifications Battery Type: Lithium Battery Capacity: 20000 mAh Input: 5V/2.4A Output 1: 5V/3A Output 2: 5V/3A Product Dimension: 5.46 x 2.51 x 0.90 in Product Weight: 355 g Color: Black Main FAQs Q: Is power bank waterproof? A: No, it is not waterproof and you could keep it away from Q: Why is my power bank not charging? A: There are some reasons for this as following: 1).Whether the cable and charger are compatible for the device.(5V output) 2).Whether the cable connection is loose and make sure your power bank is not depleted. 3). Turn on the power bank or not Q: Could I charge my device when the power bank is also being charged? A: No, you may not do this please because it will do harm to the lifespan of the unit.