Victron Energy Smart Solar MPPT 150/85-TR VE.Can One Size. Using the latest fastest technology SmartSolar maximizes this energy harvest driving it intelligently to achieve full charge in the shortest possible time. SmartSolar maintains battery health extending its life. The SmartSolar charge controller will even recharge a severely depleted battery. It can operate with a battery voltage as low as 0 Volts provided the cells are not permanently sulfated or otherwise damaged. 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. Remote Monitoring & ControlRemotely control and monitor the extensive features of your SmartSolar MPPT charger with built-in Bluetooth by pairing it with your smartphone or another device via VictronConnect. If your installation is connected to the internet with a GX device the Victron Remote Management Portal (VRM) provides access to the full power of your MPPT anytime anywhere; both VictronConnect and VRM are free to use. For remote installations - even when there is no internet connection nearby - you may be able to monitor your MPPT by connecting the GlobalLink 520. Load OutputThe intelligent Load output function prevents damage caused by running batteries 'flat'. You can configure the voltage at which SmartSolar disconnects a load - thereby preventing excessive drain on your batteries. And here's the clever bit: SmartSolar will attempt a 100percent recharge every day. If it can't - during periods of poor weather - it raises the disconnect voltage daily until it achieves success. We call this feature BatteryLife because it maintains health and extends the life of your battery. Please contact your dealer for any returns repairs or support issues related to this product. Package Contents: Victron Energy Smart Solar MPPT 150/85-TR VE.Can Victron Energy SCC115085411: Smart Solar MPPT 150/85-TR VE.Can One Size