The Powersonic PSC-12800A-C is charger for sealed lead acid type batteries. This Automatic dual rate charger senses battery requirements and automatically switches from the fast charge to float mode, or vice versa. LED's provide visual indication of the charging mode. Automatic chargers combine the advantages of float and cycle chargers; recharge time is short yet batteries are safe from being overcharged. This charger is ideal for cyclic applications where recharge time is critical and the battery may be left on charge indefinitely. As a result charging is fool-proof. Meant for use with 4 Amp to 12 Amp rechargeable batteries.