Aastra DT390 User Manual page 13

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Single chargers shall only be connected with power adapters supplied by
the manufacturer, see list above.
Precautions:
Please read carefully the following important precautions before the first
time use of the batteries. Make sure to understand and observe all
cautionary instructions stated, so as to avoid any possible safety hazards
that are caused by any misuse, misapplication or damage to batteries.
1424_EN_LZT103089 Rev B1 2009-05-20
Only use batteries, mains adapters or desk and rack chargers
which have been specifically designed for use with your product.
Use of power sources not explicitly recommended may lead to
overheating, reduced battery performance, distortion of the
equipment and fire or other damages.
The phone is equipped with Li-Ion battery. In a complex
infrastructure, the talk- and standby time may differ, due to the
consequence of the increase in signaling.
The battery must always be completely charged (minimal 4 hours)
before first time use.
The battery in your product is designed to withstand many charge
cycles.
Use only the recommended charging equipment.
Improper charging can cause heat damage or even high pressure
rupture.
Observe proper charging polarity.
Do not allow the metal contacts on the battery to touch another
metal object. This could cause short-circuit and damage the
battery.
Do not solder lead wires directly onto the battery.
Do not allow water to come into contact with the battery, this could
short-circuit and damage the battery.
If the handset has been exposed for water or condense, remove
the battery immediately and let it dry completely before reinserting
the battery.
Remove the battery before cleaning the telephone to reduce risk of
electric shock.
Unplug the battery charger from a power source before cleaning
the handset to reduce risk of electric shock.
The battery is replaceable, however it is not the intention to do this
frequently.
Only charge the battery when placed in the phone.
Use only the specified battery-packs for your product.
Never heat or dispose of the battery into a fire, which, or else, may
cause leakage, burst or fire.
Remove the carrying case from the product while in charger.
© Copyright Aastra Telecom Sweden, 2009.
All rights reserved.
13

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