The CTEK MUS 4.3 Test and Charge combines an advanced micro-processor controlled battery charger with a battery and alternator test function to test battery voltage, start power and alternator performance on batteries from 1.2Ah up to 11OAh. This charger includes a patented, automatic-desulphation program and a special reconditioning function that will revive and restore deeply discharged and stratified batteries. The Recond and Snowflake modes operate individually or together in both 0.8A and 4.3A programs. The MUS 4.3 Test and Charge is fully automatic for optimal charging of all 12V lead-acid batteries, and comes with a five-year warranty.