FeaturesAble to charge two batteries15Ah MPPT Solar Charge Controller 152x85x34mm. 350gProtects the battery/s from over charging and reverse feed from a solar panel/s up to 180wBluetooth app allows real time view of solar and battery dataUsing the very latest MPPT technology, the PV Logic 15A Smart MPPT Charge Controller is able to interrogate the state of charge of a battery and deliver more power faster from a solar panel. The result is that any battery will typically receive up to 20% more power from this MPPT controller than a PWM model. Able to take a 12v or 24v solar (180w max) input the energy from the solar panel will always be focused on the battery connected to the number 1 terminals until that battery is 70% charged. Then if a second battery is connected both will receive a simultaneous charge. This is an idea in a motorhome of the boat where it\'s typical to have both a leisure battery and a starter battery. If only one battery is connected this will be charged until full.This controller is supplied with a free to download Bluetooth app allowing users to view real-time solar and battery data.