Skip to content

Morningstar SunSaver MPPT solar controller logo

MPPT Charge Controller w/ Automatic Lighting Control

SunSaver SS-MPPT-15L Solar Charge Controller
Rated up to 15 Amp PV charging current for 12 or 24 volt batteries
Morningstar Model Number SS-MPPT-15L
Solar Charge Current Rating 15A
Nominal Battery Voltage 12V or 24V
Battery Types Sealed, Flooded, Gel, AGM
Max. Solar Voltage 75 Volts
Max. Operating Power 12V: 200 watts
24V: 400 watts
Self-Consumption 35 mA
Transient Surge Protection 4 x 1500 Watts
Dimensions 6.6" x 2.5" x 2.9"
Weight 1.3 lbs.

Morningstar Sunsaver MS-MPPT-15L Charge Controller


Morningstar SunSaver MPPT SS-MPPT-15 Solar Charge Controller

Sunsaver MPPT charge controller

Morningstar’s SunSaver MPPT solar controller with TrakStar Technology™ is an advanced maximum power point tracking (MPPT) battery charger for off-grid photovoltaic (PV) systems. The controller features a smart tracking algorithm that maximizes the energy harvest from the PV and also provides load control to prevent over discharge of the battery.

The SunSaver MPPT is well suited for both professional and consumer PV applications including automatic lighting control. Its charging process has been optimized for long battery life and improved system performance.

The SunSaver MPPT is epoxy encapsulated for environmental protection. A personal computer may be used to adjust setting via USB with the optional USB MeterBus Adapter (UMC-1). It may also be programmed by the user via four settings switches.

Accessories include a remote meter and battery temperature sensor.. 

SunSaver MPPT Benefits

SunSaver MPPT Advantage PWM 4-stage charging

• Maximizes energy harvest
• Provides power boost
• Use of high voltage modules
• Fully adjustable and programmable
• Extensive electronic protections
• Includes load control
• Longer battery life
• More system information
• Data logging
• Converts 36v or 24v pv arrays
• Up to four programmable timer sequences for pv lighting applications

SunSaver controllers are manufactured in a world class ISO 9001 certified facility. Morningstar uses automated production processes so every unit is exactly the same with parts soldered to .0006 inch accuracy. Anodized case, marine terminals and custom potting material is used for a controller that is built to last through everyday real world PV applications.

SunSaver MPPT Warranty

All of Morningstar’s SunSaver charge controllers are warranted to be free from defects in material and workmanship for a period of FIVE (5) years from the date of shipment to the original end user. Morningstar will, at its option, repair or replace any such defective products.

morningstar icon

SunSaver SS-MPPT-15L Certifications

• CE Compliant
• RoHS Compliant
• UL 1741 / CSA 107.1-01 recognized component
• Manufactured in a Certified ISO 9001 Facility


Contact us toll-free: (877) 297-0014

Read more about Morningstar SunSaver charge controllers.

morningstar icon

MorningStar SunSaver SS-MPPT-15L Charge Controller Detailed Review

Maximizes Energy Harvest

MorningStar TrakStar MPPT Technology features:

•Peak efficiency of over 97%
•Almost no power losses
•Recognition of multiple power peaks during shading or mixed PV arrays
•Excellent performance at low solar insolation levels

Use of High Voltage Modules
Enables the use of high voltage and thin film modules for off-grid battery charging.

Higher Voltage PV Arrays
Provides a means to use a higher voltage PV array to charge either a 12V or 24V battery.

Lower System Cost
Less expensive than other MPPT controllers and is affordable in smaller PV systems up to 400Wp. Allows system costs to be reduced by down-sizing the PV array, using on-grid or thin film modules and decreasing cable sizes.

Load Control
Automatically disconnects loads when the battery has been discharged to a low state of charge.


Personal Computer Connectivity
• Optional USB MeterBus Adapter
• Optional PC MeterBus Adapter for RS-232
• Fully adjustable user selection via on-board preset switches or customized with PC connection.
• Advanced automatic custom programmable lighting control with a PC connection.
• Extensive controller and system data is provided by the status LED’s and optional meter.   Monitoring is also available with a personal computer.
• 30 days of internal data logging of key PV system operating parameters.

Smaller Size
Mechanical dimensions are less than other MPPT controllers, making it easier to install in equipment enclosures.

Highly Reliable
Efficient electronics, a conservative thermal design and tropicalization result in high reliability and long life.

Extensive Electronic Protections
Fully protected against most system errors and faults.

Longer Battery Life
Efficient MPPT tracking and 4-stage charging increases battery life.

SunSaver MPPT Options

• Remote Meter
• Remote Temperature Sensor
• USB MeterBus Adapter (UMC-1)
• PC MeterBus Adapter for RS-232
• DIN Rail Mounting Clips


Contact us toll-free: (877) 297-0014

SunSaver MPPT charge controllers available with our complete systems.

Contact us toll-free: (877) 297-0014


Contractor Discounts Available


  Popular inverters we supply:


SunSaver Charge Controllers


Contact us for remote outdoor solar system sales & advice for PV systems using the Morningstar SunSaver MPPT charge controller.