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

Morningstar Sunsaver 10a Pwm Solar Charge Controller Ss 10 12v

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Description

🔆 Power your independence with the SunSaver—because your off-grid setup deserves the best.

PLUG PLAY SIMPLICITY - Factory presets and built-in diagnostics make installation foolproof—no tech headaches required.
MAXIMIZE BATTERY LIFESPAN - Advanced 4-stage charging with temperature compensation extends your battery’s health and performance.
BUILT TO BRAVE THE ELEMENTS - HazLoc rated and engineered to withstand extreme temperatures up to 100°C for mission-critical reliability.
EFFORTLESS POWER MANAGEMENT - 10A PWM controller optimizes solar-to-battery energy flow for consistent, reliable charging.
TRUSTED AMERICAN INNOVATION - Backed by a 5-year warranty and US-based support from Morningstar, the global leader in solar tech.

The Morningstar SunSaver 10A PWM Solar Charge Controller is a compact, highly reliable regulator designed for 12V battery systems. Featuring four-stage charging and temperature compensation, it maximizes battery life while delivering efficient energy management. Its robust electronic protections and HazLoc rating ensure durability in harsh environments. With easy installation and a 5-year warranty, it’s the trusted choice for small solar setups requiring dependable, maintenance-free performance.

Specifications

ASIN	B002MQW3H8
Best Sellers Rank	#52,138 in Patio, Lawn & Garden ( See Top 100 in Patio, Lawn & Garden ) #27 in Renewable Energy Controllers
Brand	Morningstar Corporation
Brand Name	Morningstar Corporation
Color	white/black
Customer Reviews	4.5 out of 5 stars 117 Reviews
Display Type	LCD
EU Spare Part Availability Duration	5 Years
Included Components	CONTROLLER
Item Weight	8 ounces
Manufacturer	Morningstar Corporation
Model	SS-10-12V
Operating Temperature	100 Degrees Celsius
Part Number	SS-10-12V
UPC	033172793449 153736796065
Unit Count	1.0 Count
Voltage	12 Volts
Warranty Description	5 years

Reviews

R**Y

16.06.2013

M**E

11.11.2022

A**L

23.03.2017

S**N

3.11.2010

S**R

8.03.2015

S**E

30.08.2017

X**E

28.06.2012

M**E

21.02.2015

A**R

27.04.2021

J**N

28.05.2018

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Trustpilot

TrustScore 4.5 | 7,300+ reviews

Sneha T.

Received my product in pristine condition. Great service overall.

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The MOLLE sheath is of exceptional quality. Very happy with my purchase.

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