The Hikoki UC12SLWFZ is a comprehensive power solution consisting of a charger and two 12V Peak Li-ion batteries with a 4Ah capacity. These batteries are engineered for high heat transfer to the surrounding environment, which helps maintain a longer overall service life by preventing overheating during intense use. To keep your tools running, the included charger can replenish a 4Ah battery in approximately 48 minutes. It features a built-in light indicator that lets you know the current charging status at a glance, and its wall-mountable design helps you keep your workspace organized and clutter-free.