The Pulsar APS 5 is a battery charger designed for use with lead-acid batteries, including AGM, GEL, and SLA types. It can be used to charge and maintain batteries in vehicles, boats, motorcycles, and other equipment that use a 12V battery. The APS 5 is a microprocessor-controlled charger that uses a 5-stage charging process to optimize battery performance and life. It can charge batteries with a capacity of up to 20Ah and has a maximum charging rate of 1.2A. The charger is designed to be easy to use, with LED indicators that show the charging status and battery condition. The five stages of charging that the APS 5 uses are: Initialization: The charger checks the battery voltage and condition, and starts charging if the battery is within the acceptable range. Bulk Charge: The charger applies a constant current to the battery until the voltage reaches a predetermined level. Absorption: The charger maintains a constant voltage while the current decreases, ensuring the battery is fully charged. Float: The charger maintains the battery at full charge while monitoring the voltage and current to prevent overcharging. Pulse: The charger uses a pulsing current to help prevent sulfation, a common cause of battery failure. The APS 5 also has safety features built-in, including overcharge protection and reverse polarity protection. It is designed to be compact and portable, making it easy to take with you on the go. The Pulsar APS 5 is a reliable and efficient battery charger that can help extend the life of your lead-acid batteries. Pulsar APS 5 Battery Charger PL79182