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136 4A. Important Safety Information
Caring for the Battery
Protecting Your Battery
The guidelines listed below help you get the most out of your
ⅷ Recently there have been some public reports of wireless
phone batteries overheating, catching fire, or exploding. It
appears that many, if not all, of these reports involve
counterfeit or inexpensive, aftermarket-brand batteries with
unknown or questionable manufacturing standards. Sprint is
not aware of similar problems with Sprint phones resulting
from the proper use of batteries and accessories approved
by Sprint or the manufacturer of your phone. Use only Sprint-
approved or manufacturer-approved batteries and
accessories found at Sprint Stores or through your phone’s
manufacturer, or call 1-866-866-7509 to order. They’re also
www.sprint.com — click Accessories. Buying the
right batteries and accessories is the best way to ensure
they’re genuine and safe.
ⅷ In order to avoid damage, charge the battery only in
temperatures that range from 32° F to 113° F (0° C to 45° C).
ⅷ Don’t use the battery charger in direct sunlight or in high
humidity areas, such as the bathroom.
ⅷ Never dispose of the battery by incineration.
ⅷ Keep the metal contacts on top of the battery clean.
ⅷ Don’t attempt to disassemble or short-circuit the battery.
ⅷ The battery may need recharging if it has not been used for
a long period of time.
ⅷ It’s best to replace the battery when it no longer provides
acceptable performance. It can be recharged hundreds of
times before it needs replacing.
ⅷ Don’t store the battery in high temperature areas for long
periods of time. It’s best to follow these storage rules:
Ⅲ Less than one month:
-4° F to 140° F (-20° C to 60° C)
Ⅲ More than one month:
-4° F to 113° F (-20° C to 45° C)
Disposal of Lithium-Ion Polymer (Li-poly) Batteries
Do not handle a damaged or leaking Li-poly battery as you
can be burned.
For safe disposal options of your Li-poly batteries, contact your
nearest Sprint authorized service center.
Special Note: Be sure to dispose of your battery properly. In
some areas, the disposal of batteries in household or business
trash may be prohibited.
Radio Frequency (RF) Energy
Understanding How Your Phone Operates
Your phone is basically a radio transmitter and receiver. When
it’s turned on, it receives and transmits radio frequency (RF)
signals. When you use your phone, the system handling your
call controls the power level. This power can range from 0.006
watt to 0.2 watt in digital mode.