The Cool Black Series AN-250A Lithium-Ion Gold Mount Battery from Fxlion outputs 14.8V and has a capacity of 250Wh (16.75Ah). It features both D-Tap and DC outputs that can be used for charging as well as discharging. Additionally, this battery comes with a 5V/2A USB output that allows for charging smartphones. It features built-in circuit design to protect the battery during charging and use. The 5-LED battery system provides an indicator that shows you how much capacity the battery has left before it needs to be charged.