Sprint Nextel M520 manual Caring for the Battery, Protecting Your Battery

3.Choose from either Slider Up, 30 seconds, 15 seconds, or 8 seconds.

4.Select the minimum time settings (8 seconds) and press .

Position the phone so the internal antenna is farthest from your hearing aid.

Move the phone around to find the point with least interference.

Caring for the Battery

Protecting Your Battery

The guidelines listed below help you get the most out of your battery’s performance.

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 1-866-343-1114 to order.

They’re also available at www.sprint.com — click Accessories. Buying the right batteries and accessories is the best way to ensure they’re genuine and safe.

In order to avoid damage, charge the battery only in temperatures that range from 32° F to 113° F (0° C to 45° C).

Don’t use the battery charger in direct sunlight or in high humidity areas, such as the bathroom.

Never dispose of the battery by incineration.

Keep the metal contacts on top of the battery clean.

Don’t attempt to disassemble or short-circuit the battery.

The battery may need recharging if it has not been used for a long period of time.

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.

Don’t store the battery in high temperature areas for long periods of time. It’s best to follow these storage rules:

Less than one month:

-4° F to 140° F (-20° C to 60° C)

More than one month:

-4° F to 113° F (-20° C to 45° C)

170 Section 4A. Important Safety Information