Charge Controllers

An off-grid solar system must have all the necessary equipment to generate, supply and store solar energy onsite. Off-grid solar systems are also referred to as standalone solar power systems, as they operate without a connection to any external power source. Off-grid solar systems are made up of 12 volt solar panels (or modules) that can be used individually or combined into a single array. The solar panels use a solar charge controller to send power to charge solar batteries and a solar inverter to convert direct current (DC), which the solar panel generates, to useable alternating current (AC). Off-grid solar systems are ideal for remote rural areas and applications where power sources are either impractical or unavailable.

Solar charge controllers are used to deliver power from solar panels to system loads and to solar batteries. When the batteries are nearly full, the charge controller will taper off the charging current to maintain the required voltage to fully charge the batteries and keep them topped off. By regulating the voltage, the charge controller protects the batteries from overcharging and undercharging. More advanced charge controllers can monitor temperature and adjust battery charging accordingly. This is referred to as temperature compensation. The battery is charged to a higher voltage in cold temperatures and a lower voltage in warm temperatures. Many charge controllers also include on-site and remote data monitoring. 

Products

Products Per Page: Sort By:
$192.00
RDA 54031 Solar Charge Controller 30 Amp MPPT 12/24 Volt w/Display and LVD
$128.00
RDA 54030 Solar Charge Controller 30 Amp PWM 12/24 Volt w/Display and LVD
$112.00
RDA 54020 Solar Charge Controller 20 Amp 12/24 Volt w/Display and LVD
$96.00
RDA 54015 Solar Charge Controller 15 Amp 12/24 Volt w/Display and LVD
$80.00
RDA 54010 Solar Charge Controller 10 Amp 12/24 Volt w/Display and LVD
$106.70
Morningstar SunSaver SS-10-12V-12V Charge Controller 10 amp, 12 volt solar charge controller 100% Solid State with true 0-100% PWM duty cycle. Rated for up to 25% overloads. Fully encapsulated with epoxy. Annodized case with marine rated terminals. Sealed and Flooded battery selections. No (LVD) low voltage disconnect. 5 year warranty.
$124.23
SCI Charge Controller 24 volt, 8 amp charge controller, Temp Comp
$85.40
SCI Charge Controller 24 volt, 8 amp charge controller
$837.10
Morningstar PS-MPPT-40M MPPT Pro Star Charge Controller 40 AMP With Meter that allows adjustments to charging, lighting, and load control settings allows multiple modules in series for 12V and 24V battery systems. Ideal for industrial and residential applications. Included TrakStar Technology which is an advanced maximum power point tracking (MPPT) battery charger for off-grid photovoltaic systems up to 1100 watts. Programming options for advanced battery support on NiCad, Lead Acid, and Lithium batteries. Continuous charging with no damage from solar panel oversizing. Includes MODBUS communications and self diagnostics. Purchased separately the Wire Box accessory to reduce hazards associated with exposed wires and connections.
$722.70
Morningstar PS-MPPT-40 MPPT Pro Star Charge Controller 40 AMP allows multiple modules in series for 12V and 24V battery systems. Ideal for industrial and residential applications. Included TrakStar Technology which is an advanced maximum power point tracking (MPPT) battery charger for off-grid photovoltaic systems up to 1100 watts. Programming options for advanced battery support on NiCad, Lead Acid, and Lithium batteries. Continuous charging with no damage from solar panel oversizing. Includes MODBUS communications and self diagnostics. Purchased separately the Wire Box accessory to reduce hazards associated with exposed wires and connections.
$669.90
Morningstar PS-MPPT-25M MPPT Pro Star Charge Controller 25 AMPWith Meter that allows adjustments to charging, lighting, and load control settings allows multiple modules in series for 12V and 24V battery systems. Ideal for industrial and residential applications. Included TrakStar Technology which is an advanced maximum power point tracking (MPPT) battery charger for off-grid photovoltaic systems up to 1100 watts. Programming options for advanced battery support on NiCad, Lead Acid, and Lithium batteries. Continuous charging with no damage from solar panel oversizing. Includes MODBUS communications and self diagnostics. Purchased separately the Wire Box accessory to reduce hazards associated with exposed wires and connections.
$543.40
Morningstar PS-MPPT-25 MPPT Pro Star Charge Controller 25 AMP allows multiple modules in series for 12V and 24V battery systems. Ideal for industrial and residential applications. Included TrakStar Technology which is an advanced maximum power point tracking (MPPT) battery charger for off-grid photovoltaic systems up to 1100 watts. Programming options for advanced battery support on NiCad, Lead Acid, and Lithium batteries. Continuous charging with no damage from solar panel oversizing. Includes MODBUS communications and self diagnostics. Purchased separately the Wire Box accessory to reduce hazards associated with exposed wires and connections.