• SmartSolar MPPT 75-Volt 15 amp: A solar charger gathers energy from your solar panels, and stores it in your batteries, Using the latest, fastest technology, SmartSolar maximises this energy-harvest
• 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 sulphated or otherwise damaged
• By 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
• Anytime anywhere remotely control and monitor the extensive features of your SmartSolar MPPT charger with built-in Bluetooth by pairing it with your smartphone or other device via VictronConnect

If you want to know more go to Victron Energy here

You can see the difference on the label of the regulator above that the 75 I 15 is change to 100 I 30.

This means that this one can take an input Voltage of 100 Volt and the one I’m buying is 75-Volt max input volt.

The higher voltage – the higher the price. Next is how many Amps it can deliver 75 I 15 means 15 Amps and this one is 30 Amps.

Smart Solar includes Bluetooth and can connect to Victron Connect App and on the app you can see how much the regulator is charging your batteries.