Technical parameters: Input: AC 220 - 240 V, 50 Hz, 190 W Output: DC 12.5 V 10.5 A/25 V 5.2 A Max: 15 A (R.M.S.) General: - Convenient operation - Adjustable charging current - Analog panel meter to monitor the charging process - If the battery is over-charged, the charger will switch into its over-charging protection - If short-circuit happens, the charger will switch off itself, and return to normal after a few minutes Operating instructions: Connect the red clamp to the positive (‘+’) terminal of the battery, and the black clamp to the negative (‘-‘) terminal. Be sure that the two clamps don’t make contact with each other. Insert the mains plug into the wall socket. The battery is now being charged. To remove the battery charger: first pull out the mains plug from the wall socket and then remove the clamps from the battery terminals. Important: FOR 12 V AND 24 V LEAD ACID BATTERIES (30 H - 300 AH) ONLY - Unit must operate from AC 220 V - 240 V supply - To avoid short circuit the red clip and black clip should not touch each other during charging - When disconnecting the charger, first pull out the mains plug before removing the clamps from the battery terminals! - Store and use the charger in a dry and well-ventilated area - Not suitable as a drip feed charger