What's the maximum size panel I can use with this controller?

100 Watts. You need to add 20% headroom. A 100 (watts solar panel) divided by 12 (battery voltage) equals 8.33 multiplied by 1.20 (20%) equals 10 (solar charge controller amperage)

Do I need to run my load through the controller, or can it go directly to battery? What are the advantages of running through the controller?

I'm afraid several have misunderstood the question. Without a low-voltage disconnect, the load connections on the controller are provided merely for connection convenience. It should be the same as connecting your load directly to the battery. There is no low-voltage protection either way. Unless you purchase the unit that contains the LVD

Morningstar controllers are manufactured in a fully automated world-class ISO 9001 facility in Taiwan.

Will this work with my 160w panels on my motorhome

yes it will works, because the solar panel will produce about 10 A/h

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Morningstar Sunsaver TrackStar 15 Amp MPPT Charge Controller 12V/24V

Morningstar Sunsaver TrackStar 15 Amp MPPT Charge Controller 12V/24V

Product ID: 499000515

Details

Brand
Morningstar
Colour
black
Item weight
599 g
Material
Polycarbonate
Voltage
12 Volts

⚡97%+ peak efficiency

📏compact, easy install

🔋4-stage battery optimization

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Description

⚡ Charge smarter, live brighter — never miss a watt!

COMPACT POWERHOUSE - Smaller footprint than competitors means seamless integration into any setup or enclosure.
REAL TIME INSIGHTS - LED indicators plus optional data logging keep you in control and informed 24/7.
BATTERY LIFE EXTENDED - Smart 4-stage charging tailored for Gel, AGM, and Sealed batteries keeps your power reliable longer.
BUILT TO LAST ANYWHERE - Tropicalized design and efficient thermal management ensure rock-solid reliability in any climate.
MAXIMIZE YOUR SOLAR HARVEST - Advanced MPPT tech squeezes every watt from your panels with over 97% efficiency.

The Morningstar Sunsaver TrackStar 15 Amp MPPT Charge Controller is a high-efficiency solar battery charger designed for 12V/24V off-grid systems. Featuring advanced maximum power point tracking technology, it delivers over 97% energy conversion efficiency and a 4-stage charging process that extends battery life for Gel, AGM, and Sealed types. Its compact size simplifies installation, while LED status indicators and optional data logging provide comprehensive system monitoring. Built with tropicalization and thermal management, it ensures long-term reliability in diverse environments.

Specifications

ASIN	B008H64TBU
Best Sellers Rank	365,917 in Business, Industry & Science ( See Top 100 in Business, Industry & Science ) 675 in Solar & Wind Energy MPPT Controllers
Brand	Morningstar Corporation
Colour	black
Customer Reviews	4.3 4.3 out of 5 stars (23)
Item Weight	599 g
Manufacturer	Morningstar
Manufacturer Part Number	SS-MPPT-15L
Material	Polycarbonate (PC)
Model Number	SS15L-MPPT
UPC	704088479474 719826772724 026190333438
Voltage	12 Volts

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$1031.05

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Desertcart purchases this item on your behalf and handles shipping, customs, and support to USA.

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TrustScore 4.5 | 7,300+ reviews

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