This advanced Battery Tender® Battery Management System offers ten versatile chargers in one unit. Ten battery chargers with selectable chemistry and voltage allow for the choice to charge AGM, Standard, GEL, or Lithium (LifePO4) batteries. Fully automatic and designed to charge and maintain up to 10 12 volt or 6 volt batteries simultaneously at 4 AMPs. Spark proof and reverse hook-up protection ensure no power will be sent from the charger unless the battery is connected properly. Includes 10 alligator clips, each with a fused 7.5 foot cable. 3-year general limited warranty included.