7
safeTy insTrucTions
• WSC720 has been constructed to charge 12 V lead acid
batteries or to act as a power supply for 12 V equipment.
Do not use the charger for other purposes.
• WSC720 is constructed for indoor purpose and must be
protected from moisture.
• Do not use WSC720 if its cables, terminal clamps or casing
are damaged.
• Batteries emit explosive gases while they are charging. It is
therefore important to ensure good ventilation and avoid sparks
and naked flames in the vicinity of the battery.
• Be careful and avoid metallic contact between the clamps.
• Use protective eyewear when working with batteries.
• Battery acid (electrolyte) is corrosive. If eyes or skin come into
contact with the acid, rinse immediately with copious amounts
of water, and contact a doctor immediately.
• Never charge a frozen battery.
• Terminate the charging if the battery gets hot.
• Never position WSC720 above the battery during charging.
• Do not cover WSC720.
• Note that in the “13.7 V Supply” mode the charger provides a
constant output voltage of 13.7 V that in certain circumstances
may cause sparking.
• WSC720 is protected against overheating. If the ambient
temperature is too high, the charging current is reduced.
• During the charge, the charger may intermittently provide a
15.5 V charge voltage. Ensure that no equipment which may be
damaged by this voltage level is connected to the battery during
charging.
