Charge Controllers

A charge controller is the heart of the system, and it is vital for preventing the photovoltaic modules overcharging the battery. Charge regulation is needed to prevent excessive water losses and reduction of battery life.

The charge controller normally also prevents the load from over-discharging the battery, which is harmful to most battery types. In addition, charge controllers may include features like:

• Display or indications of battery voltage, state of charge and various currents
• Remote alarm relays to send signals to indicate fault conditions
• Control signals to start up a back-up generator, etc
• Remote communications

Designing a suitable charge controller for a particular application requires in-depth knowledge of photovoltaic module behaviour, battery characteristics and the user's needs. Naps is a world leader in this field and has been producing its own charge controllers since 1987.

To read more about our charge controllers please visit the Datasheet Library.

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