Xantrex Heart Echo Charge Charging Panel [82-0123-01]Convenient Dual Battery Bank Charging Xantrex digital echocharge (part#82 0123 01) is designed to charge auxiliary or starting batteries from an inverter charger or other charging source with limited voltage drop. The Xantrex echocharge detects when the house battery bank is being charged and directs a portion of the charge current to auxiliary or starting batteries. The maximum charger current offered by echocharge is limited to 15 amps. Product