Nokia 3610 fold

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■ Data communication applications
For information on using a data communication application, see the product’s 
documentation. Making or answering phone calls during a computer connection is not 
recommended, as it might disrupt the operation.
For better performance during data calls, place the phone on a stationary surface with the 
keypad facing downward. Do not move the phone by holding it in your hand during a data 
call.
16. Battery and charger information
Your device is powered by a rechargeable battery. The battery intended for use with this device 
is the BL-5C. This device is intended for use when supplied with power from the following 
chargers: AC-3U, AC-4U, or AC-5U. 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. Use only Nokia approved batteries, and recharge 
your battery only with Nokia approved chargers designated for this device. Use of an 
unapproved battery or charger may present a risk of fire, explosition, leakage, or other 
hazard. 
If a battery is being used for the first time or if the battery has not been used for a prolonged 
period, it may be necessary to connect the charger, then disconnect and reconnect it to 
begin charging the battery. If the battery is completely discharged, it may take several 
minutes before the charging indicator appears on the display or before any calls can be 
made.
Always switch the device off and disconnect the charger before removing the battery.
Unplug the charger from the electrical plug and the device when not in use. Do not leave a 
fully charged battery connected to a charger, since overcharging may shorten its lifetime. If 
left unused, a fully charged battery will lose its charge over time.
Always try to keep the battery between 15°C and 25°C (59°F and 77°F). Extreme 
temperatures reduce the capacity and lifetime of the battery. A device with a hot or cold 
battery may not work temporarily. Battery performance is particularly limited in 
temperatures well below freezing.
Do not short-circuit the battery. Accidental short-circuiting can occur when a metallic 
object such as a coin, clip, or pen causes direct connection of the positive (+) and negative 
(-) terminals of the battery. (These look like metal strips on the battery.) This might happen, 
for example, when you carry a spare battery in your pocket or purse. Short-circuiting the 
terminals may damage the battery or the connecting object.
RM429_EN_820.fm  Page 50  Thursday, August 21, 2008  5:12 PM
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