Pro Charging Systems Dual Pro 12 Volt 12 Amp Battery Charger - Two 6 Amp Banks. The Dual Pro RS2 CHARGER will deliver up to 6 amps per bank a total of 12 amps. The system is engineered for users who need a charging system on an occasional basis and may not want or need the capabilities of a heavier duty and higher amperage product. All Recreation Series units have reverse polarity protection, float stage maintenance and independent outputs. Features include; approved for wet cell and absorbed glass mat (AGM) batteries, DC charge cables = 5ft and AC power cord = 3ft, and reverse polarity protected and no installation restrictions.