Shunt Charge Controllers

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Shunt Charge Controllers Shunt charge controllers are the go-to solution when you need a durable, low-cost method to protect batteries from overcharge and divert excess solar energy to a load or dump resistor. Shunt controllers are ideal for simple and dependable off-grid systems, designed for easy control of their operating time, as opposed to the more complex MPPT systems. They’re compact, often fanless, and perfect for remote installations and solar water pumping . Unlike MPPT charge controllers or PWM charge controllers that focus on maximizing harvest from the PV array, shunt charge controllers act as a safety valve that senses battery voltage and reliably shunts excess current to a diversion load controller when the battery reaches a setpoint. That makes them ideal as part of hybrid systems where a Fronius grid-tie inverter handles AC export and grid synchronization because the shunt protects the battery bank and prevents continuous overcharge when other system components change operating modes. Shunt controllers can be paired neatly with related system parts, such as RV solar charge controllers for mobile installations or monitors & metering, to keep an eye on the state of charge and diversion activity. Why Choose Our Shunt Charge Controllers? Extremely low maintenance and long service life. Simple installation and reliable in extreme temperatures. Cost-effective for small systems and dedicated diversion loads. Ideal partner for hybrid/grid systems. See Our Complete Collection Range MPPT Charge Controllers . PWM Charge Controllers . Charge Controllers (main) . Diversion Load Controllers . RV Solar Charge Controllers . Lighting & Generator Controllers . Quick Spec Comparison Product Key Attribute 1 Key Attribute 2 Stand-out Features Brand Flexcharge NCHC60-24 24V system High-current diversion Handles large dump loads; durable marine/off-grid design Flexcharge Flexcharge PV14-12V 14A 12V system 14A max charge current Simple, rugged shunt regulation; ide