Fully automatic intelligent microprocessor controlled single phase 12/ 24V battery charger with jump starter function suitable for lead acid, calcium, AGM/ GEL, leisure and start/stop batteries (25-800Ah). Automatically modifies the charge output and charges the battery faster than a standard battery chargers without damage to the battery. Fully automatic float mode ensures that the battery is kept fully charged and ready to use for longer period of time. Feature large digital ammeter display with easy to follow step by step instruction messages, reverse polarity protection, thermal runaway protection and automatic shut-off provides safe operation. Easy automatic operation with no-nonsense buttons, compact steel case with a strong carry handle and color-coded clamps.