Samsung SCH-U540MSAVZW - Manual (Page 21)

Understanding Your Phone 18
Battery
Remove the Battery
1. Press down, and slide the battery cover back and lift up to remove it.
2. Use your finger to lift the battery (bottom end first) up and away from the
phone.
Charge the Battery
Your phone is powered by a rechargeable standard Li-ion battery. Only use
Samsung-approved charging devices and batteries. Samsung accessories are
designed to maximize battery life. Using other accessories may invalidate your
warranty and may cause damage.