Manufacturers' estimates of talk time and standby time are always listed as maximum time periods under ideal conditions. In normal use, most persons can realistically expect about 50% of estimated talk and standby times before recharging is necessary.

All phones have lithium-ion batteries and may be charged at anytime without damage to the battery.

• Display backlight is on much or all of the time.
• Battery wasn't fully charged prior to use.
• How close or far away the phone is from a cell site. Further distance requires more power.
• Percentage of time being used for talking.
• Percentage of time in analog mode. An analog signal will cut talk times 50% or more.
• Data cables or accessories connected to the phone.
• No service available or coverage holes. Phones trying to acquire or reacquire service use more power than when they find service and go into power efficient operation.
• How often voice mail notifications, pages, and text messages are received, and when they are acknowledged by the user.
• Earpiece and ringer volume settings (higher setting require more power).
• Antenna up or down (down requires more power).
• Web browsing on phone will shorten battery life up to 3-4 times normal talk time.