Solar charge controllers

Solar charge controllers regulate the power flowing from your solar panels into your battery bank, protecting the batteries from overcharging and extending their service life. We stock both PWM controllers for smaller 12V and 24V systems and MPPT controllers, which harvest noticeably more energy from the same array by tracking the panels' maximum power point.

Choose an MPPT controller where your panel string voltage is well above your battery voltage, or where every available watt matters. PWM controllers remain a cost-effective choice for simple, small installations.

Before you buy

• Charge controller buying guide – PWM versus MPPT, and how to size a controller.
• Solar system sizing calculator – size your array and battery bank first.
• Technical support & manuals – manuals and setup help.