If you have a dual battery bank we have a solution. Independently and simultaneously monitor and control the charge of two different kinds of battery banks with a single charge controller. This 5-stage, PWM charge controller can regulate up to 510 watts and is compatible with any combination of lithium, gel, AGM, Conventional lead-acid (wet), and calcium 12-volt batteries. Protects and RegulatesAll our charge controllers use pulse width modulation (PWM) and five stages of charging to regulate the flow the electricity to your battery. This protects your battery from overcharging, expands your battery's lifespan, and keeps your panel safe from backflow electrical currents, among many other protections and benefits. Monitors and IndicatesIts large digital display lets you monitor battery voltage, charging current, charging capacity (amps per hour), battery types, full charge, and system faults. Colored LEDs indicate operational status and battery conditions. Flexible and CustomizableOur 30-amp charge controller is weather resistant and can be surface-mounted on your wall, or flush-mounted inside the wall. It is compatible with our battery temperature cable and with our remote LCD display that lets you keep tabs on your power from wherever it's most convenient for you. 30-Amp Dual Battery Bank Charge Controller Specs: Watts: 510 Amps: 30 Lithium Compatibility: Yes Remote Display Compatible: Yes Battery Temperature Sensor Compatible: Yes Mounting Options: Surface or Flush Mount