Morningstar SunSaver™ PWM Solar Charge Controllers
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Since the introduction in 1996, more than 1.5 million SunSaver Controllers have set the standard for reliability and performance in demanding oilfield and mining installations in nearly 90 countries around the globe. Today, SunSaver is the world’s leading small solar controller for industrial and consumer markets, proven in mission critical applications where failure is simply not an option.
This third generation SunSaver brings over two decades of advances in software and electronics to the same rugged, hardened design that made the original famous. Own both a legend and the latest in a single product.
“This is the only one I’d use…it’s the one I wish I bought first”
Specifications and Certifications by Model
Model | SS-6-12V | SS-6L-12V | SS-10-12V | SS-10L-12V | SS-10L-24V | SS-20L-12V | SS-20L-24V |
---|---|---|---|---|---|---|---|
*In periods following excessive battery drain, provided the controller is not power cycled, the controller can self-recover from a battery voltage of 1V and provide intermittent charging operation up to 6V at which normal operation will resume. | |||||||
Charge Rating | 6 amps | 6 amps | 10 amps | 10 amps | 10 amps | 20 amps | 20 amps |
Max. PV Open Circuit Voltage (Voc) | 30 volts | 30 volts | 30 volts | 30 volts | 60 volts | 30 volts | 60 volts |
Nominal Battery Voltage | 12V | 12V | 12V | 12V | 24V | 12V | 24V |
Minimum Battery Voltage | 6V* | 6V* | 6V* | 6V* | 6V* | 6V* | 6V* |
Load Control | No | Yes | No | Yes | Yes | Yes | Yes |
Voltage Accuracy | +/- 25mV | +/- 25mV | +/- 25mV | +/- 25mV | +/- 48mV | +/- 25mV | +/- 48mV |
Operating Temperature Range | -40 C to +60C | -40 C to +60C | -40 C to +60C | -40 C to +60C | -40 C to +60C | -40 C to +60C | -40 C to +60C |
Warranty | 5 Years | 5 Years | 5 Years | 5 Years | 5 Years | 5 Years | 5 Years |
CE and RoHS compliant | Yes | Yes | Yes | Yes | Yes | Yes | Yes |
Approved for use in Hazardous Locations: Class 1, Division 2, Groups A-D | Yes | Yes | Yes | Yes | Yes | Yes | Yes |
ETL Listed [UL-1741 and Canadian CSA C22.2 No.107.1.01] | Yes | Yes | Yes | Yes | Yes | Yes | Yes |
FCC Class B Part 15 Compliant | Yes | Yes | Yes | Yes | Yes | Yes | Yes |
Manufactured in a Certified ISO 9001 Facility | Yes | Yes | Yes | Yes | Yes | Yes | Yes |
Key Features and Benefits
-
Extremely High Reliability
• Failure rate of less than 1 per 1,000 shipped (<0.1%)
• 100% solid state. Power MOSFET design
• Manufactured in an ISO 9001 factory
• 100% pre-shipment functional testing -
Easy to Install and Use
• Factory pre-sets result in no required install settings
• Electronic protections prevent damage from wiring mistakes
• Fully automatic operation and fault recovery
• Additional features include full electronic protections, 3-state battery LED indicators, terminal cover, dead battery recovery, high voltage load protection for sensitive loads
• Wire terminal cover included with every SunSaver -
Longer Battery Life
• Series design (not shunt) for cool operation
• Longer battery life through PWM 4-stage charging and temperature compensation
• Sealed or flooded battery select
• Low voltage load disconnect on several versions -
Designed for Harsh Environments
• Temperature rating of -40°C to +60°C
• Ideal for Oil/Gas applications. Approved for use in hazardous locations: Class 1, Division 2, Groups A-D
• Tropicalization—hardened for field use with anodized aluminum enclosure, epoxy encapsulation, marine-rated terminals
Videos
Morningstar "Charging Experts" featuring SunSaver | 7 minute video
This 7 minute video features the HazLoc ratings and internal and external components of Morningstar’s SunSaver Solar Charge Controllers and explains why Morningstar has been considered the “charging experts” for over a quarter of a century.
Application
- Lighting
- Oil and Gas
- RV-Caravan and Marine
- Security and Surveillance
- Telecom
Description
Since the introduction in 1996, more than 1.5 million SunSaver Controllers have set the standard for reliability and performance in demanding oilfield and mining installations in nearly 90 countries around the globe. Today, SunSaver is the world’s leading small solar controller for industrial and consumer markets, proven in mission critical applications where failure is simply not an option.
This third generation SunSaver brings over two decades of advances in software and electronics to the same rugged, hardened design that made the original famous. Own both a legend and the latest in a single product.
“This is the only one I’d use…it’s the one I wish I bought first”
Specifications and Certifications by Model
Model | SS-6-12V | SS-6L-12V | SS-10-12V | SS-10L-12V | SS-10L-24V | SS-20L-12V | SS-20L-24V |
---|---|---|---|---|---|---|---|
*In periods following excessive battery drain, provided the controller is not power cycled, the controller can self-recover from a battery voltage of 1V and provide intermittent charging operation up to 6V at which normal operation will resume. | |||||||
Charge Rating | 6 amps | 6 amps | 10 amps | 10 amps | 10 amps | 20 amps | 20 amps |
Max. PV Open Circuit Voltage (Voc) | 30 volts | 30 volts | 30 volts | 30 volts | 60 volts | 30 volts | 60 volts |
Nominal Battery Voltage | 12V | 12V | 12V | 12V | 24V | 12V | 24V |
Minimum Battery Voltage | 6V* | 6V* | 6V* | 6V* | 6V* | 6V* | 6V* |
Load Control | No | Yes | No | Yes | Yes | Yes | Yes |
Voltage Accuracy | +/- 25mV | +/- 25mV | +/- 25mV | +/- 25mV | +/- 48mV | +/- 25mV | +/- 48mV |
Operating Temperature Range | -40 C to +60C | -40 C to +60C | -40 C to +60C | -40 C to +60C | -40 C to +60C | -40 C to +60C | -40 C to +60C |
Warranty | 5 Years | 5 Years | 5 Years | 5 Years | 5 Years | 5 Years | 5 Years |
CE and RoHS compliant | Yes | Yes | Yes | Yes | Yes | Yes | Yes |
Approved for use in Hazardous Locations: Class 1, Division 2, Groups A-D | Yes | Yes | Yes | Yes | Yes | Yes | Yes |
ETL Listed [UL-1741 and Canadian CSA C22.2 No.107.1.01] | Yes | Yes | Yes | Yes | Yes | Yes | Yes |
FCC Class B Part 15 Compliant | Yes | Yes | Yes | Yes | Yes | Yes | Yes |
Manufactured in a Certified ISO 9001 Facility | Yes | Yes | Yes | Yes | Yes | Yes | Yes |
Key Features and Benefits
-
Extremely High Reliability
• Failure rate of less than 1 per 1,000 shipped (<0.1%)
• 100% solid state. Power MOSFET design
• Manufactured in an ISO 9001 factory
• 100% pre-shipment functional testing -
Easy to Install and Use
• Factory pre-sets result in no required install settings
• Electronic protections prevent damage from wiring mistakes
• Fully automatic operation and fault recovery
• Additional features include full electronic protections, 3-state battery LED indicators, terminal cover, dead battery recovery, high voltage load protection for sensitive loads
• Wire terminal cover included with every SunSaver -
Longer Battery Life
• Series design (not shunt) for cool operation
• Longer battery life through PWM 4-stage charging and temperature compensation
• Sealed or flooded battery select
• Low voltage load disconnect on several versions -
Designed for Harsh Environments
• Temperature rating of -40°C to +60°C
• Ideal for Oil/Gas applications. Approved for use in hazardous locations: Class 1, Division 2, Groups A-D
• Tropicalization—hardened for field use with anodized aluminum enclosure, epoxy encapsulation, marine-rated terminals
Videos
Morningstar "Charging Experts" featuring SunSaver | 7 minute video
This 7 minute video features the HazLoc ratings and internal and external components of Morningstar’s SunSaver Solar Charge Controllers and explains why Morningstar has been considered the “charging experts” for over a quarter of a century.
Application
- Lighting
- Oil and Gas
- RV-Caravan and Marine
- Security and Surveillance
- Telecom
what’s included
The E2000LFP Expandable Power Station combines power and flexibility in a portable package. Link it with two EB3000 battery packs to reach an impressive 8064Wh capacity - enough for almost any power need.
With 2000W AC output, it runs most household devices and tools without breaking a sweat. The advanced LiFePo4 batteries deliver outstanding durability, keeping 80% capacity even after 3500 charging cycles.
Charging is quick and flexible. The station accepts up to 1300W input across multiple ports, with 600W maximum solar input. Using solar panels, you'll fully charge in 2-3 hours. Need it faster? Dual AC adapters cut that time to just 1.5-2 hours.
Specification
The E2000LFP Expandable Power Station combines power and flexibility in a portable package. Link it with two EB3000 battery packs to reach an impressive 8064Wh capacity - enough for almost any power need.
With 2000W AC output, it runs most household devices and tools without breaking a sweat. The advanced LiFePo4 batteries deliver outstanding durability, keeping 80% capacity even after 3500 charging cycles.
Charging is quick and flexible. The station accepts up to 1300W input across multiple ports, with 600W maximum solar input. Using solar panels, you'll fully charge in 2-3 hours. Need it faster? Dual AC adapters cut that time to just 1.5-2 hours.
Shipping & Delivery
The E2000LFP Expandable Power Station combines power and flexibility in a portable package. Link it with two EB3000 battery packs to reach an impressive 8064Wh capacity - enough for almost any power need.
With 2000W AC output, it runs most household devices and tools without breaking a sweat. The advanced LiFePo4 batteries deliver outstanding durability, keeping 80% capacity even after 3500 charging cycles.
Charging is quick and flexible. The station accepts up to 1300W input across multiple ports, with 600W maximum solar input. Using solar panels, you'll fully charge in 2-3 hours. Need it faster? Dual AC adapters cut that time to just 1.5-2 hours.
Get Started In 3 Simple Steps
The whole process is easy – no salespeople involved.

Step 1: Choose Your System
Pick your products at direct-to-you prices. Browse complete systems and see exactly what you'll pay.

Step 2: Place Your Order
Quick online checkout with free U.S. shipping. Your order ships within 3-5 business days.

Step 3: Power Up
Professional guidance for setup and connection. Our team helps you get the most from your power station.
The Build The Power Difference
Here’s why you’ll prefer us over other providers.
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What Our Customers Say
Direct experiences from homeowners who took control of their energy costs.
Frequently Asked Questions
How is Build The Power different from other companies?
Unlike traditional companies, we've removed the complex network of salespeople, project managers, and dealer fees. You browse and buy directly through our digital platform, cutting costs by 20-50% while still getting expert support when you need it.
How does your ordering process work?
Browse & Select – Find the product that suits your needs.Add to Cart – Click "Add to Cart" and proceed to checkout. Secure Payment – Complete your purchase using our secure payment options. Order Confirmation – You’ll receive an email confirmation with your order details. Shipping & Delivery – We process and ship your order as quickly as possible. A tracking number will be provided. If you have any questions, feel free to contact us!
Do you offer free shipping?
Yes! We offer free shipping on all orders, with no minimum purchase required. Enjoy hassle-free shopping without worrying about extra shipping costs. Once your order is processed, we’ll provide a tracking number so you can follow your shipment’s progress.
What's your return policy?
We offer a 30-day return policy for your peace of mind. If you're not completely satisfied with your purchase, you can return it within 30 days of delivery for a refund or exchange. The item must be in its original condition and packaging.
To start a return, contact our support team, and we’ll guide you through the process.
Can I get help with installation?
We do not offer installation services, but we’re happy to recommend trusted companies or services that can assist you. If you need help finding an installer, feel free to contact us, and we’ll point you in the right direction!