how many watts does it use?

The Engel Fridge/freezer consumes 2.5 amperes an hour (30 watts) at a 100% duty cycle (the compressor is always on). Typically, I have noted a duty cycle of approximately 50% on a warm day ( 75 degrees F. or 23.9 C.) with the device set at the '3' setting (yields +10 degrees F. or -17.5 degrees C.) which would mean a wattage of 15 watts. Using the machine at a lower setting (as a fridge for example, instead of a freezer) would yield a lower wattage. Obviously, outside temperature affects the duty cycle of any fridge/freezer.

Are these latches still the lightweight plastic that seem to be the recipient of many complaints? As of 8/10/18?

Mine arrived today 2022-06-17 with a broken latch. They do appear to be lightweight plastic.

If you buy this product on Amazon do you still get the manufacture warranty?

Big Frog Mountain is an authorized Engel dealer and the products we sell are under the manufacturer's warranty.

if i used a solar panel directly as my source of my electricity , how much the wattage of my solar panel ?

My old solar setup was just a 50w panel charging a 80Ah 12v battery, and that's not enough for sustained use. My new setup is 400w of panels charging 400Ah of 12v battery, and that's plenty. So somewhere in between. This is for a cabin in northern Wisconsin.It's a good product - runs well, not loud, very well insulated.

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ENGEL MR040 40 Quart Portable Top Opening 12/24V DC - 110/120V AC Fridge-Freezer

ENGEL MR040 40 Quart Portable Top Opening 12/24V DC - 110/120V AC Fridge-Freezer

Product ID: 10504013

Details

Brand
ENGEL
Capacity
40 liters
Color
Gray
Configuration
Compact
Defrost System
Automatic
Installation Type
Countertop

⚡Seamless 12/24V DC & 110/120V AC auto-switch

🔋Ultra low power draw 0.7-2.7 Amps

❄️Cools from 45°F to -5°F

Description

❄️ Stay cool anywhere, anytime — the ultimate portable fridge-freezer for the modern adventurer!

MARINE GRADE DURABILITY - Corrosion-resistant ABS case built for rugged outdoor and marine adventures.
POWER SAVVY PERFORMANCE - Runs 40% more efficiently than traditional compressors—save battery, stay cool.
SEAMLESS POWER SWITCHING - Auto-priority AC/DC input means zero downtime, zero stress.
TOP TIER COOLING PRECISION - Variable temp control from fridge to freezer—tailor your chill.
QUIET VIBRATION RESISTANT - Super silent Engel swing motor compressor keeps your vibe calm and collected.

The ENGEL MR040 is a 40-quart portable top-opening fridge-freezer designed for professional-grade cooling on the go. Featuring a corrosion-resistant ABS case and the industry-leading Engel swing motor compressor, it delivers ultra-efficient cooling from 45°F down to -5°F with minimal power consumption (0.7-2.7 Amps). Its automatic voltage selection seamlessly switches between 12/24V DC and 110/120V AC power sources, ensuring uninterrupted performance whether on the road, at sea, or at home. Rugged, quiet, and built to last, the MR040 is trusted by adventurers and professionals alike for reliable, high-performance refrigeration in any environment.

Specifications

ASIN	B001SNWCFO
Additional Features	Easy to Install, Impact Resistance, Portable
Adjustable Temperature Control	Yes
Best Sellers Rank	#2,029,109 in Automotive ( See Top 100 in Automotive ) #995 in Automotive Interior Coolers & Refrigerators
Brand Name	ENGEL
Capacity	40 liters
Color	Gray
Configuration	Compact Internal Freezer
Cooling Method	Compressor
Customer Reviews	4.5 4.5 out of 5 stars (372)
Defrost System Type	Automatic
Door Material Type	Plastic
Finish Types	Glossy
Form Factor	Freezer Top
Fresh Food Capacity	40 Quarts
Global Trade Identification Number	00816219023491
Has Convertible Freezer	No
Included Components	Fridge Freezers
Installation Type	Countertop
Inverter Type	No Inverter
Is Electric	Yes
Item Dimensions D x W x H	25"D x 15.5"W x 18.5"H
Item Type Name	Fridge Freezers
Item Weight	48 Pounds
Lock Type	Electronic
Manufacturer	ENGEL
Manufacturer Part Number	MR040F-U1
Model Name	MR040F-U1 40 Qt AC/DC Portable Tri-Voltage Fridge/Freezer
Model Number	MR040F-U1
Number of Doors	1
Number of Shelves	1
Pattern	Solid
Power Source	Battery Powered
Refrigerator Net Capacity	40 Quarts
Shelf Type	Wire
Size	40
Smart Home Compatibility	Not Smart Home Compatible
Specification Met	UL
UPC	830151000266 830151000280 816219023491
Unit Count	1.0 Count
Voltage	12 Volts
Warranty Description	3 Years

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