Aastra DT433 User Guide DT4x3 for BusinessPhone - Page 11

User Manual Cordless Phones for BusinessPhone™ • Use the Desktop Charger or the wall mounted Charging Rack for charging. Charge the battery for at least one hour the first time you use the battery. Note that the wall mounted battery pack charger has to be used if the battery alone is to be charged. IMPORTANT: When charging the EX classified handset, it is only permitted to use a charger marked withDC3-BxxB, DC4-BxxB, or CR3-BxxC on the label. It is not permitted to charge the EX battery pack alone. • Do not charge a battery when the ambient room temperature is above 40° C or below 5° C (above 104° F or below 41° F). Charging beyond these conditions may impair the battery performance and shorten the life cycle. • Batteries are consumable products and degenerate over time. To maintain performance and security it is recommended to replace batteries every 2-3 years depending on usage. • Do not attempt to take a battery apart. • Do not disconnect the battery unless it needs to be replaced. • Do power the handset off before removing the battery. • 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 Li-Ion batteries. In a complex infrastructure, the talk and standby time may differ, due to the consequence of the increase in signaling. • The battery in your product is designed to withstand many charge cycles. • 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 allow water to come into contact with the battery • 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. • Do not cover the product while being charged.Do not charge the phone in a closed cabinet or drawer. The charging of the battery is a chemical process and causes the battery to become warm during charging. Make sure the environment in which the phone is charged, is well vented. • The cordless phone can be charged either when switched on or off. • Do not connect the battery's positive and negative leads altogether in any circumstances. • Do not strike or drop the battery. It may cause damage to the battery. • Do not use battery packs from different types or of different capacities. • The battery is to be stored in a dry cool place, with the ambient temperature of 0°C to +20°C (32F to 68F) for best performance. Even when stored under optimal conditions the battery capacity will decrease over time. • The battery continues to discharge a minimal portion of its power, even if the product is switched off or the battery is removed. Battery Disposal Defective batteries must be returned to a collection point for chemical waste disposal. Warnings Smoke or fumes • Stop operating the products and turn off immediately in case of smoke and fumes. Unplug the mains adapter and remove the batteries from the phone immediately. Continued operation may result in fire or electrical shock. LCD • If liquid crystal display breaks, avoid injury by not allowing the liquid crystal to come into contact with eyes, skin or mouth. Prevent the liquid crystal from leaking out of broken glass. Preventing malfunction • Never place the equipment in close proximity of electric motors, welding equipment or other devices generating strong (electro) magneticfields. Exposure to strong (electro) magneticfields may cause malfunction and corrupt the communication. • Moving the equipment rapidly between warm and cold temperatures may cause condensation (water droplets) to form on its internal and external surfaces. Water droplets may cause malfunction of the AMT/PUD/TR/0119/1/2/EN 2012-08-13 5