AASTRA DT292 for BusinessPhone User Guide EN - Manual (Page 8)

Important
BusinessPhone – Cordless phone DT292 8
• As an energy saving measure, disconnect the charger from the
main socket after charging.
• When unplugging the mains adapter from the power outlet,
make sure that your hands are dry and ensure that you hold the
solid portion of the mains adapter.
• Do not pull on cables.
Charging and batteries
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.
• Only use batteries, mains adapters or desk and rack chargers
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.
• Cordless phones are equipped with Nickel Metal Hydride
(NiMH) batteries or Lithium Ion Lion batteries. 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 solder lead wires directly onto the battery.
• Do not apply water to the battery.
• The initial charging of a NiMH battery will cause the battery to
become warm. This is a normal effect of charging NiMH
batteries.
• The batteries are replaceable, however it is not the intention to
do this frequently.
• Only charge the batteries when placed in the phone.
• Use only the specified battery-packs for your product.