The Efest Lush Box Battery Charger & Power Bank is the ideal charging system for all of your mobile and vaping devices. No need to wait: Vape and recharge your devices at the same time. This pocket-sized power bank holds two 18650 Lithium-ion batteries and showcases an LED on-screen battery life indicator for each battery, so you can check just how much battery life is available in both individual units. Simply insert the batteries that need to be charged by removing the magnetic cover, and then reattach the cover in a snap. At 110 x 50 x 20 mm and weighing only 3.5oz, the Efest Lush Box Battery Charger & Power Bank feels lightweight and durable to hold in your hand. It is the perfect travel size with a sleek, functional design which enables you to charge up your batteries while you vape no matter where you are. Its advanced charging system charges and discharges both batteries at the same rate, multitasking between one battery and the other until they are both fully charged. Additionally, you can charge the Efest Lush Box Battery Charger while simultaneously charging your devices’ batteries. To do this, plug in the Micro-USB charging cable into the top side of the power bank and connect it to a wall outlet. The Efest Lush Box Battery Charger & Power Bank uses the most up-to-date safety features such as over/discharge protection, fire-retardant construction, and short-circuit protection. So, whether you’re hanging out at the coffee shop or biding time in the waiting room, the Efest Lush Box Battery Charger & Power Bank is the best choice for keeping all your travel devices charged up and powered on.FeaturesModel: Eleaf LUSH BOX2 Bay Charger and Power BankOutput Current: 2.1A MaxMicro USB Input: DC 5V 2.1AUSB Output: DC 5V 2.1AUSB Output Floating Voltage: 5.0 – 5.5VLow Voltage Smart Activation Recovery FunctionAuto Recharge: 3.9 ± 0.15VAuto Recharge: 4.1 ± 0.05VAuto cut-off: 3.0 ± 0.05VCE, RoHS and FCC CertifiedSafety Features: Short Circuit Protection / Reverse Polarity Protection / Overcharge Protection / Auto-Detect Charging / Fire Retardant MaterialIncludes:1 Efest Lush Box Battery Charger1 MicroUSB CableSet product image1 Warranty Card