# Quick Answer: Will a 12V cool box drain car battery?

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Conclusion. There is absolutely no question – a fridge cooler will drain you car battery. On average, fridge coolers will draw 4.5A at 12V. As they are thermostatically regulated, you can expect the compressor to be running about 25% of the time.

## How long can you run a cool box off a car battery?

Most electric coolboxes seem to have a power consumption of ~5A at 12 volt. A large 110 Ah leisure battery should only be discharged 60% if you want any life out of it. This gives us 13.2 hours of coolbox use !

## How many watts does a 12V cool box use?

They tend to average about 40w – 50w power so are drawing round about 4A DC at 12V.

## How long can you leave an electric cool box on for?

Coolboxes typically remain cool for up to two days, with the largest models remaining cooler for longer. However, electric coolboxes can stay cool for as long as they are plugged in. If you are not going to have access to a power source on your trip, you may need to consider different options.

## Can I run a 12V cool box off a leisure battery?

A cool box run off a leasiure battery should easily do that plus more have a look at the amps it’s draws if it’s 1 amp then you have it running for roughly 80% so 60 ish hours do 6 night should be achievable as a fridge (not freezer) as they run at 4 degrees. Don’t run the battery completely flat mind.

## Can you run a 12v cool box off a solar panel?

Yes that will work but I don’t like it being un-fused so needs real care in use, however even with a 100 Watt solar panel your battery is doomed to be flatted quickly running a cool box from it.

## How many amps does a 12v cool box use?

A typical cool box is around 70 watts, running at 12 volts. Therefore Amps = 70 / 12 = 5.8333 recurring, or just under six amps.

## Do electric Coolboxes drain car battery?

Conclusion. There is absolutely no question – a fridge cooler will drain you car battery. On average, fridge coolers will draw 4.5A at 12V. As they are thermostatically regulated, you can expect the compressor to be running about 25% of the time.

## How long will a 12v fridge last on a leisure battery?

You’ll only get about 5-6 hours from an 85Ah battery on a 12v coolbox, so it’s not worth trying for camping. Get a 3 way (gas/12v/240v) powered fridge – they are much better.

## What can you run off a 12v leisure battery?

A leisure battery is the power source for the 12V appliances and equipment in a caravan or motorhome. These batteries are designed to provide a steady level of power over a prolonged period of time and are used by the lights, T.V, kettle, oven and similar appliances in some outfits.

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## Is an electric cool box worth it?

It works fine. Perhaps not quite as chilled as the fridge in your house but definitely worth it and perfect for keeping milk, bacon etc etc. Pack it sensibly so you can quikcly flip the lid, grab what you want and shut it again! Definitely reccomended from me too.

## Do cool boxes need ice packs?

4 – Amount of ice is important. We recommend filling the cool box with as much ice as possible to keep the air space to a minimum. … Block ice will melt much slower than small cubes. However, as ice melts, it is absorbing the heat from its surroundings; therefore smaller pieces of ice will chill the cool box faster.

## Are electric cool boxes any good?

1. Halfords 24L Electric Coolbox. This cool box was joint best-in-test, boasting a temperature drop of 15.3 degrees. We were impressed by its build quality and good-sized compartment too; four 1.5-litre bottles were easily stored.

## How long does it take to drain a 12v battery?

Between 60 and 100 Amp-hours is the average capacity of your car battery. The time until the battery is completely drained is about 8 hours. Between 4 and 7 hours is what you’re looking at, as the battery’s Amp-hour capacity decreases as the amperage draw increases.

## How long can a car battery run a 12v fan?

Your 30 watt fan will draw about 2.5 amps at 12 volts (2.5 times 12 is 30). Assuming 90% efficiency from the inverter means that the inverter will draw 2.5/. 9, or 2.78 amps. A 50 Ahr battery will last 50/2.78 or 18 hours.

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