Green Apple Envi Boost is a disposable vape pod system powered by 900 mAh battery and housing 5mL internal vape cartridge allowing approximately 1500 puffs per device.With no maintenance required to use this vape, having no need to recharge the battery, change coils, or refill e-liquid, they are perfect for the no-fuss user and backup device for a night out or vacation. Simply open and start vaping.