Morningstar PWM Charge Controller - SunSaver 20A 12v with LVD

Q: What is the difference between the SunSaver and SunSaver MPPT models?

The standard SunSaver uses PWM (Pulse Width Modulation) technology, which is highly reliable and cost-effective for smaller systems where the solar panel voltage closely matches the battery voltage. The MPPT version is more efficient for systems with high-voltage panels or varying temperatures but comes at a higher price point.

Q: Is the Morningstar SunSaver compatible with lithium batteries?

The standard SunSaver (Gen 3) charging algorithm is factory-set for Lead-Acid (Sealed or Flooded) and NiCd batteries. It is not recommended for Lithium-ion batteries unless used with an external BMS or specific custom settings that match the battery's requirements.

Q: Can I use this controller in hazardous environments like oil and gas sites?

Yes, the SunSaver is specifically designed for harsh environments and is approved for use in hazardous locations (Class 1, Division 2, Groups A-D). It features epoxy encapsulation and marine-rated terminals to prevent corrosion and spark risks.

Q: Does this model include a Low Voltage Disconnect (LVD)?

LVD is available on specific versions of the SunSaver series (indicated by an 'L' in the model name, such as SS-6L or SS-10L). Please verify the specific SKU for your load disconnect requirements.

SKU: SS-20L-12V

This is a variant of Morningstar PWM Charge Controller

Options

Morningstar PWM Charge Controller - SunGuard 4.5A 12v

SG4

$39

Morningstar PWM Charge Controller - SunKeeper 12A 12v

SK12

$99

Morningstar PWM Charge Controller - SunKeeper 6A 12v

SK6

$68

Morningstar PWM Charge Controller - SunSaver 10A 12v

SS-10A-12V

$90

Morningstar PWM Charge Controller - SunSaver 10A 12v with LVD

SS-10L-12V

$105

Morningstar PWM Charge Controller - SunSaver 10A 24v with LVD

SS-10L-24V

$115

Morningstar PWM Charge Controller - SunSaver 20A 12v with LVD

SS-20L-12V

$117

Morningstar PWM Charge Controller - SunSaver 20A 24v with LVD

SS-20L-24V

$174

Morningstar PWM Charge Controller - SunSaver 6A 12v

SS-6A-12V

$75

Morningstar PWM Charge Controller - SunSaver 6A 12v with LVD

SS-6L-12V

$85

Morningstar PWM Charge Controller - SunSaver Duo 25A 12v

SSD-25

$98

The Morningstar SunSaver is the world's leading small solar controller for industrial and consumer applications. Renowned for its legendary durability and <0.1% failure rate, this 100% solid-state PWM controller is built for harsh environments.

Product Overview

Since its introduction in 1996, the SunSaver Solar Charge Controller has set the benchmark for reliability and performance in demanding environments. With over 1.5 million units sold across nearly 90 countries, SunSaver has become the world's leading small solar controller for both industrial and consumer markets. This third-generation SunSaver combines two decades of advancements in software and electronics with the same rugged design that made the original a legend.

Why Choose SunSaver?

SunSaver is renowned for its exceptional reliability, boasting a failure rate of less than 0.1%. Its 100% solid-state, Power MOSFET design, and ISO 9001 manufacturing standards ensure top-notch performance. Each unit undergoes 100% pre-shipment functional testing, guaranteeing you receive a product that works right out of the box.

Key Features:

High Reliability: Less than 1 per 1,000 shipped (<0.1% failure rate)
Ease of Use: Factory pre-sets, fully automatic operation, and electronic protections
Enhanced Battery Life: PWM 4-stage charging, temperature compensation, and low voltage load disconnect
Durability: Operates in temperatures ranging from -40°C to +60°C, approved for hazardous locations, and features an anodized aluminum enclosure with epoxy encapsulation

Ideal For:

Whether you're an industrial user, a residential user, or setting up off-grid installations, SunSaver is designed to meet your needs. Its robust construction and advanced features make it perfect for oil/gas applications and other harsh environments.

Experience the reliability and performance of the SunSaver Solar Charge Controller—where legendary durability meets cutting-edge technology.

Frequently Asked Questions

What is the difference between the SunSaver and SunSaver MPPT models?+

The standard SunSaver uses PWM (Pulse Width Modulation) technology, which is highly reliable and cost-effective for smaller systems where the solar panel voltage closely matches the battery voltage. The MPPT version is more efficient for systems with high-voltage panels or varying temperatures but comes at a higher price point.

Is the Morningstar SunSaver compatible with lithium batteries?+

The standard SunSaver (Gen 3) charging algorithm is factory-set for Lead-Acid (Sealed or Flooded) and NiCd batteries. It is not recommended for Lithium-ion batteries unless used with an external BMS or specific custom settings that match the battery's requirements.

Can I use this controller in hazardous environments like oil and gas sites?+

Yes, the SunSaver is specifically designed for harsh environments and is approved for use in hazardous locations (Class 1, Division 2, Groups A-D). It features epoxy encapsulation and marine-rated terminals to prevent corrosion and spark risks.

Does this model include a Low Voltage Disconnect (LVD)?+

LVD is available on specific versions of the SunSaver series (indicated by an 'L' in the model name, such as SS-6L or SS-10L). Please verify the specific SKU for your load disconnect requirements.

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