Solar Charge Controllers  These regulate power from solar electric modules protecting batteries from overcharge and shortening life of battery and electric loads. Battery voltage is monitored and when proper voltage is reached the controller stops or reduces charging. Controllers also prevent nighttime discharge of batteries into solar modules. Don’t overload controllers. Allow for the extra amps solar modules produce with reflected light and cold temperatures.

Classic MPPT Charge Controller for Solar, Hydro, Wind     By MidNIte Solar         Made in USA

 Help decide which model you need by clicking on Classic Sizing Tool
 

Warranty MidNite Solar's Classic comes with a standard 5 year warranty. The factory will repair or replace the Classic at no charge to the consumer during this 5 year period

     Classic MPPT Charge Controllers

Genasun Solar Charge Controller with MPPT  Made in the USA

Surviving the Storm with Low Power Burn Every controller uses power, but while a typical MPPT controller burns 27mA, the Genasun GV-10 burns a scant 0.9mA. This difference in consumption effectively allows the GV-10 to put an extra half an amp-hour into your battery every day, resulting in a critical benefit while waiting out a snow-covered panel or a few bad weeks of clouds.

Radio Silence. Most MPPT solar charge controllers broadcast Radio Frequency noise from the DC/DC conversion circuit. Unfiltered inputs and outputs waste energy and interfere with nearby or attached electronics. Genasun worked to eliminated RF emissions from our line of charge controllers.

No Fans. No Relays. Fans get clogged with dust and dirt. Relays eventually stop switching. Genasun controllers use advanced electrical design that obsoletes these parts. With fewer moving parts to wear out, Genasun controllers outlast the competition.

Fault Tolerance. Reverse polarity protection on battery and panel. Internal user-replaceable fuse.

The Perfect Match: The GV-10 and a 140W Solar Panel
Genasun’s GV-10 Continuous MPPT controller is so effective at increasing power output that it actually reduces the system’s cost per Watt ($/W) when paired with a panel such as the Kyocera KD140SX or KD140GX, for example. To compare a Genasun MPPT controller to a PWM controller, you can imagine increasing the size of the panel to make up for the power wasted by a PWM controller. With this approach, the dollar value is calculated by multiplying the power gained by Genasun’s MPPT controllers by the cost per Watt of the solar panel.

The MPPT benefit is: 10% additional power in the summer. (Hot panels have a Vmp closer to battery Voltage.) 30% additional power in the winter (Cold panels have a higher Vmp.) 50% in partial shading (Partial shade causes a dramatic increase in Vmp. We have consistently seen 50-60% increase in energy harvest from partially shaded panels.)

Solar Converters  MPPT Charge Controllers

Changes solar electric module’s extra voltage into more charging amps. Gain 10% to 25% more power especially in cold weather or when battery voltage is low. PWM, 3-stage charging with bulk, then absorption rate, then lower voltage float rate. Has current and voltage limited output, lightning protection, load disconnect, low voltage disconnect (LVD). On 20 amp and larger models, there is a versatile power relay driver that is on anytime battery is not full.
Dual Voltage 12/24 volt models can charge 12 or 24 volt batteries. Also, PV modules can be wired for 24 volt to charge 12 volt battery. This saves on wire size and cost especially on long wire runs. 
36 Volt and 48 Volt are nice for golf carts, electric tractors and other electric vehicles.
Can be used as a motor/pump controller on PV direct systems: protects motor from high voltage, increases power available to motor with maximum power point tracking, and the LVD can be used with remote switch to turn motor on and off.  15 amp Controller is mounted on flat heat sink which can mount inside standard NEMA box. Made in Canada. The shipping weights are higher than actual weights so the shipping cost will be more accurate.

OutBack   MPPT Solar Charge Controller   For 12,  24,  32,  36,  48,  54, 60  volt  Battery

FM60 60 amp, 14 lbs $750    Special $690                 FM80 80 amp, 14 lbs $850    Special $790

Sun Guard
4.5 amp 12 volt  
Made in Singapore.

SunSaver        by Morningstar

A low cost constant voltage pulse width modulation (PWM) charge controller. Field selectable for sealed or flooded batteries. Electronics are epoxy encapsulated in aluminum case. Has built-in temperature compensation for more accurate charging. LED indicators for charging and load control in low voltage disconnect (LVD) models. LVD models disconnect load on low voltage to protect the battery. 5 year warranty. 6” x 2.2” x 1.3”

Solar Charge Controller  PWM, series constant voltage 3-stages charging: full amps to bulk voltage, then tapers amps for absorption then to lower float voltage. Monthly auto or manual equalize charge or can be defeated for sealed batteries. Shown with optional digital meter.

DC Diversion Regulator  Divert extra power not needed to charge battery and make hot water or space heat. In this mode, controller is connected between battery and electric dump load you provide (see below water heater elements and air heater resistors). Use to regulate hydroelectric, wind generators or PV (blocking diode needed with PV).
Also has Load Control mode. Operates in one mode at a time. Controller has short-circuit, overload, over temperature, lightning protection. Blinking LED shows status. Indoor mounted, powder coated, conduit-ready box. Can be mounted on top of Trace DC Disconnect Circuit Breaker Box. Accepts #2 wire. 9”x 5”x 2”.  2 year warranty by Trace

Optional LCD Digital Display  Displays battery volts, charge amps and total amp hours delivered from solar modules since last reset. Mounts on controller front.

Optional Temperature Sensor with 15’ cable. Monitors battery temperature for more accurate charging, better battery life, and less water loss. Important to use if batteries are not at room temperature year round. Easy plug-in connector. 

TriStar Controller    45 or 60 amp     12, 24, 48 volt  by Morningstar       Shown with optional meter.  (computer is required to change voltage to 32 or 36 volts )
Use 3 ways, one mode at a time. Two or more controllers may be used for multiple functions.

PV Charge Controller Mode Connects between PV modules and battery to prevent overcharge and nighttime loss. Constant voltage series charging with bulk, PWM regulation, float and equalize. Parallel for large arrays up to 300 amps.
Diversion Controller  Mode Connects between battery and a suitable DC resistive load such as water heater or air heater elements. Protects battery from overcharge from Solar, Wind or Hydro power.
Load Controller Mode Connects between battery and DC load to protect battery or load from low voltage. Low voltage disconnect (LVD) is current compensated with delay to avoid false disconnects. Starts large loads including motors with up to 300 amp startup current.

PSRTP Remote Temperature Probe, for more accurate battery regulation. Recommended if battery temperature is more than 9 degrees different from controller. 33’ cable, user can extend up to 100’ 2 lb $33
Meter is easy to navigate through 26 screens of information with 4 buttons. System and controller information, data logging, bar graphs and choice of 5 languages.
TSM Meter, mounts on controller       2 lbs $109
TSRM Remote Meter with 100’ cable 5 lbs $145

   Blocking Diodes     Use between solar modules and Charge Controller for better module output when modules are shaded or of mixed sizes. Also used between solar modules and battery to prevent night time discharge on systems without controllers or with diversion regulators such as C40.

Air Heater Diversion Load