SmartSolar MPPT 150/60-TRThe Victron SmartSolar MPPT 150/60 Solar Charge Controller is Bluetooth accessible via either built-in Bluetooth or the Victron Energy Bluetooth dongle. The VictronConnect app is available for free on both iOS and Android. This app allows you to view plenty of parameters: battery voltage, solar history, load output, flexible battery charge algorithms, plus day/night timing and light dimming options. These solar charge controllers will gather energy from your solar panels fast and efficiently. Ultra-fast Maximum Power Point Tracking (MPPT) Especially in the case of a clouded sky, when light intensity is changing continuously, an ultra-fast MPPT controller will improve energy harvest by up to 30% compared to PWM charge controllers and by up to 10% compared to slower MPPT controllers. Load output Over-discharge of the battery can be prevented by connecting all loads to the load output. The load output will disconnect the load when the battery has been discharged to a pre-set voltage. Alternatively, an intelligent battery management algorithm can be chosen: see Battery Life. The load output is short circuit proof. Some loads (especially inverters) can best be connected directly to the battery, and the inverter remote control is connected to the load output. A special interface cable may be needed, please see the manual Battery Life: intelligent battery management When a solar charge controller is not able to recharge the battery to its full capacity within one day, the result is often that the battery will continually be cycled between a ‘partially charged’ state and the ‘end of discharge’ state. This mode of operation (no regular full recharge) will destroy a lead-acid battery within weeks or months. MPPT: Ultra Fast Maximum Power Point TrackingBy constantly monitoring the voltage and current output of your solar (PV) panels, MPPT technology ensures that every drop of available power is rinsed out of your panels, and harvested for storage. The advantage of this is most noticeable when the sky is partially clouded, and light intensity is constantly changing.Please contact your dealer for any returns, repairs or support issues related to this product.