Domende 12 volt Refrigerator 54qt Portable Freezer Electric Cooler Compressor Car Fridge for Car Truck Vehicle RV Boat Outdoor and Home use 12/24V DC and 90-250 AC,Cooling to -4F

Edit after over one year of use.Great little fridge. Gets cold and stays cold. Easy to clean and maintain and pretty energy efficient although it doesn’t work very well through the cigarette lighter port. In my solar powered van, I’ve got it hard wired to a capacitor and it functions very well but when i had it plugged into a vehicle cigarette lighter or a standard outlet on my solar it would trigger the low voltage alarm if not actively charging. Works great run off of 110v and hard wired to 1 farad capacitor.This seems to be a pretty good product. I’ve noticed a few things? Based on other reviews and my own experience.1) this unit draws power when it cools. You need to have a good power source. If the voltage indicator goes below 11.8 you will get a fault code and it will stop. If you have small wire, or a long run to your outlet, try running a bigger wire or plugging it in closer to the power source.2) I’ve seen users complain that their unit suddenly stopped working. There is a fuse right under the power inlet. If your unit fails, check the fuse.There is about 6 degrees of temp fluctuation on this unit. No big deal. Decent price, decent size.. I’ll update it to 5 stars if i get at least a year out of it.

This thing is amazing and works fantastic. Absolutely recommend this product. It is HEAVY DUTY and HEAVY! Very SOLID for sure and holds up very well in our semi your food will absolutely be nice and cold easy to operate simple set up. Lots of space and the drain hole makes for easy cleaning! Will absolutely hold a gallon or 2 of liquids and more than a week's worth of food if packed correctly. And stays pretty cool during a 24 hr power down!***APRIL 18 2024 EDIT***Currently using this as a deep freezer in my RV and it is still going strong LOVE the convenience of have a nice size deep freezer in my rv!!!

2 years never turned off .- 4 degrees . in work van in Texas heat . beat up banged around and still solid . i never know what to expect . has been a big money saver on ice ,miles to get ice and ruined food ,i buy frozen food , i can add some non frozen ,i keep it full , water bottles fill space, for cold drinks frozen water bottle in bubba cup with drink poured around frozen water bottle .cold fast . frozen water bottles are recycled , froze again .I depend on this Freezer for a week or more to work . and it does a great job , i was tired of can goods and enjoy cooking frozen meats and vegies . i paid more for a week long ice cooler , spent 0ver 20.00 a week on ice and was limited on fresh food to keep good all week.Power 4 -100 watt solar panels , was 12 volt on 2 wal mart marine battery's , they last about a year , but charge enough to run freezer all night for longer . recently put together LIPO 100 ah at 24 volts . works for long time with cloudy week. nothing is hooked to van battery, charges only from sun.So i hope this works as good for you as it does me. one of the best investments i ever made .

My friend's husband works at the hospital helping to fight the COVID-19 pandemic. The family is a nature-loving couple with two, young children, and she thought it would be a great idea to get a car refrigerator to surprise him with for their upcoming Yosemite trip, which by the way, temporarily requires a permit to enter. She saw my recent review for a 54qt car freezer (for some reason, Amazon won't let me mention other brands) and asked how it would compare to her cousin's recommendation, the Donmende HC-50. I have never heard of Donmende, and at first glance, the specifications looked on par as any reputable brand I had seen. There was, however, one glaring difference: it only has one compartment. That meant that because there was no section divider, the entire unit's content would be subject to just a single temperature. In other words, the Donmende could be used as either a refrigerator OR freezer. On the flipside, the lack of a divider would result in more flexibility and storage space.PROS- Very large capacity-- There is a large and small section, both of which are not separated by a wall--- Side grooves indicate that a divider could be added, but I could not find where to purchase one--- Content could shift around--- Only one temperature could be set for the entire unit (cannot be used as both a freezer and chiller like my own 54qt car freezer)- Fast-freezing-- After 30 minutes, entire unit went from 72F to 27F, then to -1F after 60 minutes- Adjustable temperature: -4F to 68F (-20C to 20C)-- Allows use as either a fridge OR freezer, but not both- 2 Energy modes: Max and Eco-- Max is useful when surrounding temperature is 86F+ (30C). Runs compressor at a higher speed-- Eco mode, although using less energy, can ruin the compressor in the long run- Temperature was roughly consistent during 2 days of continuous use. It was set at -4F, and spot checking throughout the day resulted in readings between -4F and 2F (in Max mode)-- Temperatures will fluctuate slightly more in Eco mode- Auto resume: When power supply is cut off and later restored, appliance continues operation- Digital controls via four, physical buttons (Power, Settings, Plus, Minus)-- All the information needed is displayed on a single screen- App control via Bluetooth (available for iOS and Android: "Car Fridge Freezer" by Alpicool)-- Shows input battery and voltage level, though it is not accurate-- Can change every setting, even when unit is turned off (as long as power is provided to the Donmende)--- Max/Eco, Battery Protection Level, and Power On/Off--- Though these can be changed, you should leave them alone: Min/Max Temperatures, Start Delay, Temperature Compensation values- USB port for charging mobile devices- Two (2) Power options-- 12V or 24V car adapter (10' cable included)-- 100-240V AC wall plug, outputting 14.5V at 6.0A (or about 87W)- Low energy usage. (See TIPS section for calculating how long the car freezer could be used for on a battery power station)-- Donmende only uses power to reach or maintain set temperature. Once there, it goes idle-- 60W with AC port of the Jackery Explorer 1000 (7W of that is used by Jackery's inverter). Manual states up to 40W draw-- 42W with 12V DC car port on the Jackery-- 1W – 2W on idle- Three (3) levels of Battery Protection to help prevent the car battery from running down- Top opens sideways, but can be changed to open from the front, too- Fairly quiet- Built-in LED over larger section to help see in the dark- Usable during off-roading-- Works at up to 30 degree angle tilt, although the product description says it can work at up to 45 degrees-- Anti-shake design keeps compressor protected- Sturdy carry handles on both ends, although I wish they could be tucked away- Can be used while the car is turned off, if its car port has a bypass to work directly off the battery-- Many SUVs, trucks, and minivans today have such output at the back. Refer to the car's owner manual- Drain hole at the bottom to let excess or spilled liquid out- 4 "cup holder" and a larger, rectangular indentation on top of the lid for holding drinks and larger items- Detailed, informative manual that was understandable, though riddled with grammatical errors- Excellent customer service: my questions were answered promptly and in detailCONS- Larger and smaller sections are not separated by a wall-- Side grooves indicate that a divider could be added, but one was not provided, and I could not find where to purchase one-- Although space is maximized that way, content could shift around and not stay in place-- One temperature for the entire unit--- Cannot be used as both a fridge and freezer at the same time-- No removable wire basket to easily load/unload content from freezer section- Exterior is not as tough as my 54qt car freezer- Carry handles are not collapsible or protected-- When packing, one must pay extra attention to not shove something so hard, that the handles could break off- At 31.2 lbs, could be heavy for some, especially if the inside is completely full-- Lighter than my 54 qt freezer by about 5 lbs-- No wheels to transport with-- No wheel kit available. Use a two-wheel cart to transport as needed--- Do NOT mess up your back as that will haunt you for the rest of your life!- Lid can be reconfigured to only open from the side or back, though I wish it could be opened from the control panel end too- May be too large for some cars- Like other car freezers in this price range, requires manual defrosting-- To defrost and remove excess ice, power off the unit and wipe dry, then power back on--- Do not allow a large amount of frost to build up on the inside of the walls as that will make cooling less efficient-- I was not immediately able to find any portable car freezers that have an automatic, self-defrost cycle that "cleans" the freezer from accumulating too much frost- AC plug is only two-pronged, and as such, cannot be grounded- No protective carry bag included- No overload protection with a replaceable fuse- Not waterproof. Keep it out of the rainTIPS- When you receive your car freezer, do NOT plug it in until it has stood upright for at least 10 hours to allow the refrigerant to settle- Internal temperature is displayed on the LCD at power-on and updates periodically- There is no built-in battery-- Requires a power station, 12V/24V DC/car port, 120V/220V AC, or solar panel(s) capable of providing at least 60W of sustained power- Compressor is made by AnuodanSETTINGSHere is how to change the different settings.Compressor Power: Eco or Max (Default)- TO SET: When powered on, briefly press the Settings button to cycle between Eco/Max- "Eco" uses less power (runs compressor at lower speed) than "Max" to minimize draw on any connected battery, but can ruin the compressor in the long run- "Max" runs compressor at full powerBattery Voltage Protection: Low, Medium (Default), or High- TO SET: When powered on, hold the Settings button for 3 seconds. Cycle between L/M/H with the Settings button- The car freezer will operate until the battery reaches a specific voltage level. Not setting the appropriate level could potentially leave you stranded with a car that will not start- Manual does not state at which levels the compressor will stop and resume, but the app shows: High 12.0V, Medium 11.5V, and Low 9.0V- When connected to a battery power station: Use Medium or Low- When connected to a car: Use High or MediumERROR CODESIf an error occurs, one of the following codes will display on the LCD:- F1: Low power protection activated. Change H3 (High) to H2 or H1 (Medium or Low)- F2: Fan overloaded. Turn unit off for 30 minutes to let cool- F3: Compressor overloaded. Turn unit off for 30 minutes to let cool- F5: Compressor controller module overloaded. Turn unit off for 30 minutes and let cool in a ventilated place- F7/F8: Temperature sensor error. Turn unit off and back onTo enter programming mode: Turn off the unit, but keep it plugged in to a power source. Hold the "Settings" button for 6 seconds until "E1" displays. Cycle through the options by pushing "Settings", and change values up or down with the respective "+" or "-" buttons. To accept the setting, leave the screen blinking until it stops after a few seconds. The various program options can also be changed with the Bluetooth-connected app.PROGRAMMINGHere are the various options that can be programmed. They should not be modified as they could cause your freezer to fail or be damaged.PROGRAM AT YOUR OWN RISK!- E1: Lowest temperature that freezer can be set to cool down to. -40C/-40F to Target temp. Default: -20C (-4F)-- Caution: setting the value too low may damage the compressor- E2: Highest temperature that freezer is allowed to reach. Target temp to 40C/104F. Default: 20C (68F)- E3*: Difference from target temperature before powering up compressor again. 1C/1.8F to 10C/18F. Default: 2C (4F)-- Compressor should stop at target temperature (ie. 4C), and start again when internal temperature is E3’s value above it (ie. 4C + 2C = 6C)- E4: Time delay protection. 0-10 mins. Default: 0 min-- To protect the compressor, it will wait that amount of time after being idle/powered off before turning on again- E5: Temperature unit display. C or F. Default: F- E6*: Do not modify. Temperature compensation (for temp set to above -6C/21.2F). -10C/-18F to 10C/18F. Default: 0C (0F)-- Displayed temperature = Detected temperature + Temperature compensation--- Used to match Displayed temperature to what is actually Detected inside the unit- E7*: Do not modify. Temperature compensation (for temp set to between -12C/10.4F and -6C/21.2F). -10C/-18F to 10C/18F. Default: 0C (0F)- E8*: Do not modify. Temperature compensation (for temp set to below -12C/10.4F). -10C/-18F to 10C/18F. Default: 0C (0F)- E9*: Do not modify. Temperature compensation "shutdown". -10C/-18F to 0C/0F. Default: 0C (0F)-- App refers to this as "TC: Shutdown". I have no idea what it is for. Perhaps to shut down the compressor when a specific, differential value is met?* Each difference of 1C is 1.8FTemperature Compensation: If you find the temperature displayed on the control panel is different than what is actually inside, place two, reliable thermometers inside and perform tests with temps set to 0C, -9C, and -20C. If, for example, the display is 8C, 4C, and 1C higher than what is inside (at each test value), set the appropriate temperature compensation responsible for the affected range(s). In this case, E6 = -8C, E7 = -4C, and E8 = -1C.The review unit had to be adjusted to: E6 = -8C/-14F, E7 = -6C/-11F, E8 = 2C/4F.RESET SETTINGSIf you find yourself having screwed up the E1-E8 settings, you can reset them to factory defaults.- Enter Programming Mode- From the "E1" screen, hold "+" and "-" buttons together until "888" displays- Note: Factory reset defaults E8 to -3C/-5.4F instead of Donmende’s of 0C/0FRUNTIME WITH BATTERY POWER STATIONS- To calculate how long the car freezer could be used for with a battery power station depends on the battery's capacity (Wh) and how much power (W) the Donmende draws- Examples are with a Jackery Explorer 1000 (1002 Wh). Halve the time when used with a Goal Zero Yeti 500x (500Wh)-- Plugged into AC port: 1002 Wh x 0.85 / Device Wattage--- As short as 14.2 hours (1002 Wh x 0.85 / 60W). Longer when idle--- About 10-15% of power is lost during conversion from DC (battery) to AC, which is normal for all power stations-- Plugged into DC port: 1002 Wh / Device Wattage--- As short as 23.8 hours (1002 Wh / 42W). Longer when idleCOOLING EFFICIENCY- Donmende only uses power to reach or maintain the set temperature. Once there, it goes idle-- Time can be shorter or much longer, depending on how often the Donmende' compressor needs to be activated to reach or maintain target temperature- The colder the set temperature and/or the warmer the ambient (surrounding) heat, the more energy will be used-- Keep in a cool location and out of direct sunlight for best efficiency-- Consider putting the Donmende in an insulated bag for better cooling- Ensure adequate air flow (4"+) on all sides of the Donmende, especially where the fan is at- The more frozen/cold items are inside, the longer they can stay cool/frozen. Avoid opening the lid too often or for too longMAINTENANCE- Ensure lid seal is clean and unobstructed to keep cold air from escaping- Clean inside with a damp cloth every week-- Use sodium bicarbonate (baking soda) dissolved in lukewarm water to clean anything dirty-- Allow inside to dry before closing lid and putting away- Do not use detergent, soap, or abrasive/sharp products- Never clean under running water- Do NOT store the unit on its side. Always keep it upright to prevent damage to the compressorCONCLUSIONThe Donmende HC-50 (54 qt) car freezer impressed me with its more forward-thinking technology when compared to my 54qt and 19qt units. It has Bluetooth available for remote monitoring and a port for USB recharging. The ability to reconfigure the lid to open sideways or forward makes it additionally useful in different mount configurations. During my few days of testing, the compressor reliably kept the insides at the set temperature, although the biggest gripe I have revolves around the carry handles that stick out and cannot be collapsed away. Furthermore, because there is no separator wall between the large and small sections, the amount of storage space is slightly more maximized -- at the expense of having just ONE temperature set for the entire unit. Grooves on the sides indicate that a separator could be added, but I was unable to find where to buy one. Kudos to my friend's cousin for recommending the right appliance to her. As for me, I prefer having the ability to have both a freezer and chiller section within the same appliance.