If the Engle MR040 is left running in my SUV overnight, to keep food frozen, will car's battery still be able to start car in the morning?
1018841
Yes, absolutely . I'm a mechanic by trade , this fridge uses very low amps.
1018842
The fridge draws about 30 Watts of power when the compressor is running, and when running in freezer mode, it will run the compressor most of the time. That means you'll be drawing 20-30W, or 200-300Wh over the course of 10 hours. For a 12V battery, that translates to 17-25Ah of battery capacity, plus any inefficiencies (some cars will also require you to have the ignition on to use the 12V sockets, which could add to the power draw). Given that most car batteries have capacities around 40-60Ah but only about half the capacity is usable, keeping this fridge running in freezer mode overnight is not advisable. I would recommend getting a second deep cycle marine battery so that you don't run down the car's main battery.
1665362
We have left it plugged in to our car for up to 6 hours without losing power for the car. I also have the electrical plug in so I can plug it in overnight at motel rooms. Have never tried it overnight on the car battery. Some cars will shut off the battery after a certain length of time so you would want to check on that before you set out on a trip. Hope that this helps. We have found that if you place a frozen bag of water or ice in the cooler it also helps keep items colder on hot days. I some times double bag it so as to prevent leaks. I don't use the blue ice packs as they take up to much room.
1997266
If you are talking about starting the car, then yes you leave the cars battery cables attached to the car's battery. Word of warning: The one thing that will kill this unit is if you leave it attached to the car for more than a few seconds AFTER the engine starts. The alternator in the car will go to full charge which is more charging current than this unit can handle. One of the guys in my shop left one attached and went to the parts dept. It was physically destroyed when he got back. So start the car, and disconnect the unit.
343904
No it says it will drain a car battery in about 4 hours. If you can run your vehicle and charge the battery in intervals it would work, if not it will drain your battery. Car and SUV battery's are still just 12 volt battery's. SUV might have more cranking amps, but still won't hold a charge longer.
343905
Running this cooler for 12 hours while the car is not running is not a good idea. I drive a Prius, the car's 12v battery is located in the back. During trips where I need to run the cooler without the car running, I'd bring along a extra marine battery to run the cooler. While the car is running, I connect the marine battery in parallel to the Prius battery so that I don't drain the marine battery. Once I turn off the car, I disconnect the cable so that the cooler only using power from the marine battery. This step is important because you DO NOT want to drain the car's battery. You'll need that to start your car. Running this cooler for 12 hours while the car is not running is not a good idea. I drive a Prius, the car's 12v battery is located in the back. During trips where I need to run the cooler without the car running, I'd bring along a extra marine battery to run the cooler. While the car is running, I connect the marine battery in parallel to the Prius battery so that I don't drain the marine battery. Once I turn off the car, I disconnect the cable so that the cooler only using power from the marine battery. This step is important because you DO NOT want to drain the car's battery. You'll need... » Read More Running this cooler for 12 hours while the car is not running is not a good idea. I drive a Prius, the car's 12v battery is located in the back. During trips where I need to run the cooler without the car running, I'd bring along a extra marine battery to run the cooler. While the car is running, I connect the marine battery in parallel to the Prius battery so that I don't drain the marine battery. Once I turn off the car, I disconnect the cable so that the cooler only using power from the marine battery. This step is important because you DO NOT want to drain the car's battery. You'll need that to start your car. « Show Less
790272
We store ours in our car all the time. I am guessing the concern is that it uses a li-ion battery. There is still a concern of getting them too hot and what the will do in an accident.
1417770
Yes, you can leave it plugged in 24/7. If you were not going to start your car for a month, you might want to unplug it, but even then, it wouldn't use enough power to drain your battery. If you have a digital watch, think how long it will run on it's little tiny battery. Just about the same thing with this little voltage meter. I have mine in a boat and I never unplug it.
1576837
I don't know exactly what you mean because that varies with use ,i use a deep cycle marine battery ,durolast from autozone 800 amps,last me all day so far but i only had it out for about four hours before winter hit and every thing is frozen now.will repost after spring thaw.
343910
I did not test it for twelve hours. The longest I tested it was about 3 hours, and the car battery was not drained. Everything in the cooler was still cold.
1128435
My whynter has run flawless for the last two years. Used it 2 months at a time while dry camping on solar power. Although I hace a pretty large solar system (340 watts & 4 golfcart batteries). Never had a power shortage overnight. Keeping things cold overnight would be an issue without some extra battery power.
410546
It will wear down the battery if left in all the time. Wenleave ours plugged in while traveling, and unplug it overnight. It stays cold.
1528836
Yes, if you use it with your car turned off. As long as the engine's running your battery won't be drained.
1488703
I guess if you know what to look for, you can try it. If your car battery is only showing 12 volts on any test device, it's probably not going to start your car. When I worked on my own vehicles and built hot rods, we always wanted between 13.5 and 14.4 volts for a full charge indication, with the engine not running. Car batteries have to pull a heavy load when starting a cold engine. That's why the "cold cranking amps" are shown on the sales shelf. If you really need to know about your car battery, I would not fool with this tester as a serious tool. I would be willing to bet, the 12 volt battery they mean on the test setting is your car alarm remote or wireless doorbell battery in the button module. I guess if you know what to look for, you can try it. If your car battery is only showing 12 volts on any test device, it's probably not going to start your car. When I worked on my own vehicles and built hot rods, we always wanted between 13.5 and 14.4 volts for a full charge indication, with the engine not running. Car batteries have to pull a heavy load when starting a cold engine. That's why the "cold cranking amps" are shown on the sales shelf. If you really need to know about your car battery, I would not fool with this tester as a serious tool. I would be willing to bet,... » Read More I guess if you know what to look for, you can try it. If your car battery is only showing 12 volts on any test device, it's probably not going to start your car. When I worked on my own vehicles and built hot rods, we always wanted between 13.5 and 14.4 volts for a full charge indication, with the engine not running. Car batteries have to pull a heavy load when starting a cold engine. That's why the "cold cranking amps" are shown on the sales shelf. If you really need to know about your car battery, I would not fool with this tester as a serious tool. I would be willing to bet, the 12 volt battery they mean on the test setting is your car alarm remote or wireless doorbell battery in the button module. « Show Less
1276880
Over 8 hours, this blanket will draw almost as much capacity as most smaller car batteries have, and that's not including other things that are running, since you most likely need to leave the key in the ignition.
1813525
Sorry,no idea. My car certainly has no problem with it, though. Sometimes I leave it plugged in for a half-hour with the ignition off; no trouble starting the card afterward.
492957
Yes, but make Shure you have a good battery and keep your car running, cause if you don't it'll drain it in about an hour
596204
Yes, this is intended to remain connected to a battery 24/7 (whether in a car or out of a car) and it begins charging the battery when solar power is available and the battery voltage is 13V or less, then once the battery voltage is raised to 14V (showing it is charged) it will stop the charging. If you will be connecting a solar panel thru a lighter plug in a car (which seems to be the easiest place), I hope the lighter remains "on" without the keys in the ignition (otherwise your "charge" power will not be getting thru to the battery making putting all of this together pointless). If you were to start a car with the panels connected up, the panels may send their rated power to help start the car (during good daylight), but they won't put out any "extra" power (they are not a battery that "store up" power or such, they just give you what they can). Once the car is started, the car alternator should instantly recharge the batteries and the green light on this should instantly come on (showing that solar power is blocked).