Section 2: Understanding Your Phone2A: Your PCS Phone - The Basics 23Charging the BatteryYour PCS Phone comes with a rechargeable battery. You should chargethe battery as soon as possible so you can begin using your phone.Keeping track of your battery’s charge is important. If your battery levelbecomes too low, your phone automatically turns off and you’ll loseeverything you were just working on. For a quick check of your phone’sbattery level, glance at the battery charge indicator located in the upper-right corner of your phone’s display screen. If the battery charge isgetting too low, the battery icon ( ) blinks and t he phone sounds awarning tone.Always use a Sprint-approved desktop charger, travel adapter or vehiclepower adapter to charge your battery.Warning! Using the wrong battery charger could cause damage to yourphone and void the warranty.It is vital that you use only the Sprint-approved Travel Adapterspecifically designed for your phone. Use of unauthorized accessoriescould damage your phone and invalidate your warranty.To use the travel adapter provided with your phone:1. Plug the adapter in the wall and the other end into the powerinterface adapter on the bottom of the phone. A red light and animated battery icon on the phone lets you know thebattery is charging. A green light on the phone lets you know the battery is at least 90percent charged.It takes about 4 hours to fully recharge a completely rundown battery.