ASHAPOWER solar MPPT charge controllers (Apollo 40) are multi voltage range devices that are unique in its kind in the market. The same device can be used for battery banks ranging from 2 battery (24V) up to a battery bank of 6 batteries (72V) in series. The battery voltage is selected by the device itself when we connect the battery bank across its terminal. The device gives a configurable charging current up to 40A. The PV panel input open circuit voltage up to 210V makes it easier to group the panels conveniently. Also sleek & stylish design of the product gives a better aesthetic view so that you can wall mount the product in a visible place inside your home/office. Now convert your existing Inverter to the Best Solar Inverter!!!