3
As with all other radio devices, touching the built-in antenna area during telephone conversation may impair the
quality and lead to shorter standby time due to increased power consumption.
The battery
Your phone is equipped with a high-performance Li-Ion battery. Optional battery types may be available; check with
your local retailer. Observe the maintenance guidelines and your battery should give you a long service life.
• At the beginning of the battery’s life, fully charge and discharge (let it go flat) three times.
• Do not overcharge the Li-Ion battery, as this can result in a reduction in battery performance and lifespan. The
recommended maximum charge time is 2.5 hours.
Avoid repeated short charging. It is preferable to let the battery go flat and then recharge it completely.
• Avoid charging in strong heat or extreme cold. Ambient room temperature is preferable. The battery has its
optimum performance in an ambient temperature of +5 °C to +50 °C.
• Do not store a battery near a fire or heat source.
• Use only the battery approved by the manufacturer.
• Never replace the battery with a non-approved battery.
• Never soak the battery in water or any other fluid.
• Never try to open the battery as it contains substances that might be harmful if swallowed or allowed to
come into contact with unprotected skin.
• Never short-circuit the battery, as it may overheat and cause a fire. Keep it away from jewellery and other
metal objects.
• Never dispose of the battery in a fire. It could explode and release harmful substances into the environment.
• Never dispose of the battery with your regular household waste. Take it to a hazardous material collection
point.
