The EonSmoke Pod Ultra Portable System is a pocket-sized battery with 220mAh battery capacity and is compatible with the EonSmoke 1ml pre-filled pod system. These pod systems are draw activated, gold plated, and are sold separately. The EonSmoke battery has a capacity of 220mAh and has an LED battery life indicator that is activated by tapping the device’s body; Green is 100 to 70%, Yellow is 70 to 20%, and Red is 20 to 0%. The device can be easily charged with the included non-proprietary micro-USB charger. The EonSmoke Pod Ultra Portable System is an excellent plug-and-play device for users looking for a quick and easy vaping device on the go!