Solar Charge Controllers for Solar Systems | The Sun Pays
Solar Charge Controllers – MPPT & PWM
Solar charge controllers regulate the power going from your solar panels into your battery bank. They are essential for protecting batteries, improving efficiency, and extending battery lifespan.
🔋 What Does a Charge Controller Do?
- Prevents battery overcharging and deep discharge
- Manages charging voltage and current to match battery chemistry
- Protects against reverse current at night
- Improves panel performance via MPPT (Maximum Power Point Tracking)
⚡ MPPT vs PWM: What’s the Difference?
MPPT (Maximum Power Point Tracking)
- Higher efficiency (up to 98%)
- Extracts more energy in cold, cloudy, or low-light conditions
- Ideal for 48V systems or high-voltage panels
PWM (Pulse Width Modulation)
- Lower cost, simpler design
- Less efficient (~70%–80%)
- Best for small systems and basic solar setups
🔧 Key Features to Look For
- System voltage support (12V, 24V, 48V)
- Battery compatibility (LiFePO₄, Gel, AGM, Flooded)
- Load control outputs (for lighting or pumps)
- Temperature sensors and auto-compensation
- LCD display or app connectivity
✅ Applications
Use our solar charge controllers in:
- Off-grid homes and cabins
- Solar water pumps and boreholes
- Camping and RV solar setups
- Solar lighting and backup power kits
🛠️ Need Help Choosing the Right Controller?
Whether you're building a small DIY system or powering a large lithium bank, our team can help. Contact us at technical@thesunpays.co.za or call 012 734 0915.