The SPI10S offers 3 times faster battery charges without damaging the battery The Sealey SPI10S features automatic float mode that ensures that the battery is kept fully charged and ready to use. It charges the battery up to 3 times faster than conventional battery chargers without damaging the battery. Features: Fully automatic microprocessor controlled dual voltage battery charger and maintainer 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, no-nonsense controls, bright, clear, 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 Rating Specification: Output: 12V  Output Charge: 10A  Battery Range: Max. 230Ah Lead Acid  Cable Length: 1.8m Supply: 240V  Weight: 1.4kg  IP Rating: IP20