YY1 battery 2600mAh Smoking and charging phones 1.It's a e cigarette battery and power bank that you can Smoking and charging phones.2.It use 2600mAh capacity biggest SAMSUNG battery. you can got 3000puffs. It can smoke lastinga week3.It has three color indicator(White 60% to 100% capacity.Blue 20% to 60%capacity.Red below 20% capacity)4.Insuranced by PICC INSURANCE COMPANY.you can get maximum USD1000000for each claim .Parameters for the YY1 battery: