Shenzhen Fanwell Electrical Technology Co., Ltd: With a built-in 550 mAh and more big battery, Fanwell disposable vapes provide a great experience without the need for charging or setup. It offers 800+ puffs, and more big puffs, twice as many as its predecessor, making it the longest-lasting disposable on the market. Each Fanwell disposable vape comes with a pre-filled 2%-5% (20mg-50mg) nicotine, sufficient to take care of your leisure vaping all day long.