Features 1、Universal Compatibility: This portable power bank is suitable for iOS, for Galaxy, and most other smartphones, earphones, tablets, BT devices, etc., is suitable for various indoor and outdoor activities. 2、Compatible Protocols: This mobile power box is compatible with QC, PD, PPS, DCP, AFC, PE protocol, for iOS 20W PD protocol, for iOS phone all series, for OV series, etc., has strong compatibility. 3、High Efficiency: Compatible with 99% of flat cylindrical lithium battery on the market, with a conversion efficiency of up to 75% and ECO mode conversion efficiency of up to 85%, making it highly practical. 4、User Friendly Design: This battery charger features a reusable and replaceable battery design, eco friendly and energy saving. Completely symmetrical design, convenient for left and right hand use. 5、Secure Structure: This power bank box has a porous vacuum silicon insulation layer, 3μ gold plated copper shrapnel, 2.5mΩ parallel MOS, anti reverse connection and reverse charging, V0 fireproof PC engineering plastic shell. Specification Item Type: Power Bank Battery Charger Model: BT-20 Material: PC Output (Battery): 4.2V 3A Maximum Output (Type C): 5V 3A, 9V 2.2A, 12V 1.67A Input: 5V 3A Applicable Battery: For INR 20700 and other lithium battery (not included) Battery Level Display: >40% cyan, 20%-40% orange, 5%-20% red, <5% flashing red Modes: (Note: ECO mode and low current mode cannot be switched to each other, and must be reverted to standard mode first) ECO Mode: Green indicator light, output limit of 5V, reducing boost loss, increasing efficiency, lower temperature Standard Mode: 5V 9V 12V Fast Charging Output Low Current Mode: Cycling animation of the indicator light, device does not sleep until battery is depleted Package List 1 x Mobile Power Bank 1 x Charging Cable 1 x Masking Paper 1 x User Manual