The Sealey SCI90S Starter Speed Charge Battery Charger with Reverse polarity protection The Sealey SCI90S is an intelligent speed battery charger that charges 6V or 12V batteries 3 times quicker than conventional battery chargers and includes an automatic maintenance mode to keep batteries at optimum levels for extended periods of time. The charge rate selector allows the operator to override the standard charge rate and choose a soft-start programme for very cold batteries, which also enables the charging and maintenance of small batteries Features: Reverse polarity protection and automatic shut-off are included as standard Charges 6V or 12V batteries 3 times quicker than conventional battery chargers Deep discharge battery programme to help the recovery of deeply discharged batteries Digital display and 150Amp engine start function, makes this unit ideal for every workshop Includes built-in digital voltmeter and state-of-charge test with wipe clean touchpad controls Powerful 20Amp output microprocessor controlled battery charger suitable for batteries up to 230Ah Includes automatic maintenance mode to keep batteries at optimum levels for extended periods of time Featuring fast charge programme for larger batteries and 3A slow charge programme for charging and maintaining smaller batteries Dedicated charging programmes for AGM/gel, conventional, leisure and stop/start batteries with fully automated charging algorithms including de-sulphating mode Speed Charge technology maximises charge input. Unit is self-adjusting with variable charge rates to ensure shortest possible charge time while minimizing the risk of gassing and damage to the battery The charge rate selector allows the operator to override the standard charge rate and choose a soft-start programme for very cold batteries, which also enables the charging and maintenance of small batteries Specification:  Supply: 240V  Output: 6/12V Weight: 5.82kg  Model No: SCI90S Output Start: 150A  Output Charge: 3/5/20A  Battery Range: 12-230Ah  Cable & Clamp Length: 1.8m