Solar Charge Controllers

Solar Charge Controllers: The Brain of Your RV Solar System.

A high-quality solar charge controller (or regulator) is the most critical link between your solar panels and your house batteries. Its primary job is to manage the flow of energy, ensuring your batteries are charged quickly and safely without the risk of overcharging or damage. At RV World, we supply a range of sophisticated controllers designed to handle the variable light conditions of New Zealand, from the sunny Far North to the overcast Southern Alps.

We stock world-leading brands including Victron Energy, Redarc, and CTEK, featuring the latest in MPPT and Bluetooth-enabled technology.

MPPT vs. PWM: Choosing the Right Technology

Understanding the difference between the two main types of regulators is key to maximising your off-grid independence:

• MPPT (Maximum Power Point Tracking): The gold standard for mobile solar. MPPT controllers, like the Victron SmartSolar series, are up to 30% more efficient than PWM models. They "track" the optimal voltage of your panels and convert excess voltage into additional charging current—vital for harvesting every possible watt during cloudy NZ days.
• PWM (Pulse Width Modulation): A simple, cost-effective solution for smaller, basic setups. They are less efficient than MPPT and becoming less with the advancement of technology

Smart Monitoring with Integrated Bluetooth

Gone are the days of squinting at small, hard-to-read screens under a cupboard. Most of our Victron SmartSolar regulators feature integrated Bluetooth, allowing you to connect directly to the VictronConnect app on your smartphone. From your phone, you can view real-time solar harvest, historical data, and current battery voltage, giving you total visibility of your power system’s performance at the touch of a button.

Advanced DC-DC Integrated Solutions

For those looking for a streamlined installation, we offer advanced units like the Redarc BCDC "D" Range and CTEK D250SE. These clever devices combine a DC-DC battery charger (for charging from your alternator while driving) with a built-in MPPT solar regulator. They automatically prioritise solar energy when you're parked, ensuring your battery is always receiving the most efficient charge available. Browse our selection today and invest in a controller that gives your batteries the protection they deserve.