Make a habit of always charging the battery when the machine is not in use. When the battery is fully charged, the charger goes into maintenance charging mode. Incorrectly used, broken or faulty, a battery charger can cause an electric shock, overheat, or leak battery acid. Remember that the batteries must be recharged with the battery charger supplied.
Charging should be carried out in an ideal surrounding temperature of 0 to 40°C. Do not charge at temperatures below 0°C, or in direct sunlight. Make sure to keep the charger out of children’s reach.