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Nokia 2780 Flip User Guide
Devices with a non-removable battery Do not attempt to remove the battery, as you may
damage the 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, to
replace the battery, take the device to the nearest authorized service facility.
Charge your device with a compatible charger. Charger plug type may vary. Charging time can
vary depending on device capability.
Battery and charger safety info
Once charging of your device is complete, unplug the charger from the device and electrical
outlet. Please note that continuous charging should not exceed 12 hours. If left unused, a fully
charged battery will lose its charge over time.
Extreme temperatures reduce the capacity and lifetime of the battery. Always keep the
battery between 15°C and 25°C (59°F and 77°F) for optimal performance. A device with a
hot or cold battery may not work temporarily. Note that the battery may drain quickly in cold
temperatures and lose enough power to switch off the phone within minutes. When you are
outdoors in cold temperatures, keep your phone warm.
Obey local regulations. Recycle when possible. Do not dispose as household waste.
Do not expose the battery to extremely low air pressure or leave it to extremely high
temperature, for example dispose it in a fire, as that may cause the battery to explode or leak
flammable liquid or gas.
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 centre or your phone dealer 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. When charger is not included in the sales pack, charge your device
using the data cable (included) and a USB power adaptor (may be sold separately). You can
charge your device with third-party cables and power adaptors that are compliant with USB
2.0 or later and with applicable country regulations and international and regional safety
standards. Other adaptors may not meet applicable safety standards, and charging with such
adaptors could pose a risk of property loss or personal injury.
Third -party chargers that comply with the applicable CTIA requirements and bear the USB-IF
logo, and can connect to your device USB connector, may also be compatible.
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. Use of an unqualified
battery or charger may present a risk of fire, explosion, leakage, or other hazard.
© 2022 HMD Global Oy. All rights reserved.
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