How to maintain the item ? ✔ When you get the item,it is better to recharge it to 100% before the first use ✔ We do advice you to recharge your cell phone once the battery of it is below 20%, just to keep your cell phone battery in a good condition. ✔ Please use this item as often as possible,try NOT to leave it in the corner for too long. At least use this item once a month to keep the battery cells active. If there be any quality issue of your item within ONE YEAR after your purchase,we will send you a new one without hesitation. (Find your order record - Contact Seller) Why Choose This Portable Charger ? 26800mAh Long Lasting Fast Charging Power Bank ✔ Type-C port will work with most of latest iPhone/MacBook/Pads/Android phones ✔ 26800mAh large capacity, no fears when power outage in Storm Weathers. ✔ You can charge 3 devices simultaneously (USB C x 1, USB A x 2). ✔ With LED digital display, more convenient to know the remaining power. ✔ A must have on-the-go, long lasting and compact size, easy to store in backpack or pocket. Battery Type: Lithium Polymer Capacity: 26800mAh/99.16Wh (3.7V battery cells) Item Weight: 14.65 Ounces / 0.916 Lbs Product Size: 5.79in x 2.72in x 1.22in Holds Charge: 6 months + USB Type-C Input: 5V 3A / 9V 2A / 12V 1.5A USB Type-C Output: 5V 3A / 9V 2.22A / 12V 1.67A (PD 20W MAX) USB A1 / A2 Output: 5V 3A / 9V 2A / 12V 1.5A / 5V 4.5A (SCP 22.5W MAX) Charge your devices while recharging You can charge 2 of your devices via USB A output ports while recharging the battery pack via USB C input port. Means you don't need extra adapters to charge your phones when recharging this power bank. Good for Outdoor activities The compact size and large capacity are great for Camping, Hiking, GPS, Traveling, etc. Keep your phones always on, no need to worry about losing contact with anyone when running out of battery. Free to take it to the flight with you The FAA limit is 100Wh.The capacity of this item is 99.16Wh,it is under 100Wh,which means you can take it to the flight with you,but in the carry-on luggage ONLY. Please don't mind the label stuck on the outer box. What you can get ? CAUTIONS: Do NOT cover the Power bank when recharging it.Avoid water, fire and overheating.Keep it away from Children.Stop using it when there is bulge in power bank or smoke / smell comes out from this item.Do NOT leave it in high temperature environment such as beach, car dashboard, deck, etc.