Charge up to 3 times faster than conventional battery chargers and without damaging the battery with the SPI15S  The Sealey SPI15S charges conventional calcium, AGM/GEL, leisure and stop/start batteries and will do so up to 3 times faster than conventional battery chargers without damaging the battery. Fully automatic float mode ensures that the battery is kept fully charged and ready to use, for extended periods of time. Features: Fully automatic microprocessor controlled dual voltage battery charger and maintainer with automatic voltage detection Patented Speed Charge technology actively monitors the charge acceptance and constantly modifies the charge output Charges the battery up to 3 times faster than conventional battery chargers without damaging the battery Heavy-duty sturdy case with no-nonsense controls. easy-to-read LED status lights and LED scrolling digital messaging display screen gives step-by-step instructions Charges conventional calcium, AGM/GEL, leisure and stop/start batteries Fully automatic float mode ensures that the battery is kept fully charged and ready to use, for extended periods of time Reverse polarity protection, thermal runaway protection and automatic shut-off are included as standard IP20 Rated Specification: Output: 12V  Output Charge: 15A  Battery Range: Max. 230Ah Lead Acid  Cable Length: 1.8m Supply: 240V  Weight: 1.5kg  IP Rating: IP20