The document provides instructions for charging the Joye 510 e-cigarette battery using the included wall charger. It explains that the battery is rated at 3.7V and 180mA, and average charge time is 3-4 hours. It describes cleaning the battery contacts before charging, and inserting the battery into the charger with a clockwise twisting motion. The charger LED will turn red during charging and turn solid green when charging is complete.