User manual

For Assistance 140
Battery and charger info
Use your device only with an original BL-5H rechargeable battery.
Charge your device with AC-20U charger. Charger plug type may vary.
Third-party chargers that comply with the IEC/EN 62684 standard, and that can connect to your device
micro USB connector, may be compatible.
Microsoft Mobile may make additional battery or charger models available for this device.
The battery can be charged and discharged hundreds of times, but it will eventually wear out. When the
talk and standby times are noticeably shorter than normal, replace the battery.
Only replace the battery with a battery that is compliant with the IEEE-std-1725 standard.
Only use the battery with a charging system that has been qualified with the system per CTIA Certification
Requirements for Battery System Compliance to IEEE 1725.
Battery and charger safety
Always switch the device off and unplug the charger before removing the battery. To unplug a charger or
an accessory, hold and pull the plug, not the cord.
When your charger is not in use, unplug it. If left unused, a fully charged battery will lose its charge over
time.
Always keep the battery between 59°F and 77°F (15°C and 25°C) for optimal performance. Extreme
temperatures reduce the capacity and lifetime of the battery. A device with a hot or cold battery may not
work temporarily.
Accidental short-circuiting can happen when a metallic object touches the metal strips on the battery. This
may damage the battery or the other object.
Do not dispose of batteries in a fire as they may explode. Obey local regulations. Recycle when possible.
Do not dispose as household garbage.
Do not dismantle, cut, crush, bend, puncture, or otherwise damage the battery in any way. If a battery
leaks, do not let liquid touch skin or eyes. If this happens, immediately flush the affected areas with water,
or seek medical help. Do not modify, attempt to insert foreign objects into the battery, or immerse or
expose it to water or other liquids. Batteries may explode if damaged.
Use the battery and charger for their intended purposes only. Improper use, or use of unapproved or
incompatible batteries or chargers may present a risk of fire, explosion, or other hazard, and may
invalidate any approval or warranty. If you believe the battery or charger is damaged, take it to a service
center before continuing to use it. Never use a damaged battery or charger. Only use the charger indoors.
Do not charge your device during a lightning storm.
Small children
Your device and its accessories are not toys. They may contain small parts. Keep them out of the reach
of small children.