Installation21• If battery fluid accidentally gets on your clothing or skin, immediately rinse thespot with clean tap water. Extended contact with battery fluid can lead to skininflammation.Precautionary Regulations during Usage• The battery is only intended for usage with this mobile unit.• Only use the charger that comes with the product for charging.• A new battery is not charged. Before using it the first time, you thus have to chargeit.• Using a battery in a cold environment can reduce the expected operating time of afully charged battery. Charge the battery in a place where the temperature iswithin the 10° C to 35° C range. Charging the battery outside this temperaturerange can mean the time required for charging is longer or result in failure tocharge.• If the operating time of a battery is very limited after being fully charged, this indi-cates the life span of the battery has expired. Replace the battery with a new one.• Never wipe off the battery with thinner, benzine, alcohol or other volatile agentsor chemically treated cloths. Otherwise, this could cause deformation of thebattery or malfunctioning.• When you have to ship your mobile unit with an installed Li-ion battery or ship theLi-ion battery separately, please observe the legal stipulations and directivesregarding sending hazardous materials with the post.