It would be fine if it ran out at some point on the 3rd day as long as it made it to somewhere around 11AM anyway. This time is less for a long road trip. While you are camping deep inside without any hookup, you need to take help from these other sources to keep the appliances running. Makes sense to me! By multiplying 2 Amps x 120 Volts, you find out the refrigerator uses 240 Watts. These are designed to produce a small amount of power over a long period of time. Maybe get the biggest you can and supplement it with one of those folding solar panels from the super centre. The best way to ensure your fridge will stay cold overnight and your car will start in the morning is with a Dual Battery System.. As the name suggest’s when you have a dual battery system installed you will have two batteries in your vehicle. To work out which size of deep cycle battery to use, you will need to know the watts or amps of the appliances you’d like to run. One of those fridges at around 25 deg. Not unless you are driving all day, if you are camped somewhere you will flatten the battery. So now we have some kind of understanding of Amp hours, right? It sounds like your only going to be putting a 60ah battery in the small space. For instance, your refrigerator can run approximately 1/3 of the time during a 24 hour cycle, or 8 hours a day. It also includes the relevant cable work so that you can mount your ArkPak in your vehicle just as you would a dual battery. chargers for laptop, etc. All the gear and no idea!!! The devices you want to run. A RV refrigerator or a residential refrigerator for Rv consuming around 150 watts while it is running would be drawing around 12 amps hour from a single 12 V battery. Usually rated in Amp Hours, deep cycle batteries are designed to be drained and then recharged. I expected a lot more, maybe at least 3 days seeing that the fridge was never opened. Normal deep-cycle batteries have a cycle duration of about 1500 times when using only 30 of their capacity. You might think of deep cycle batteries as marathon runners, and cranking batteries as sprinters. This means that it did not even run for 2 full days. You can run RV refrigerators on batteries, but practically, it is not the best. That means someone who only discharges their battery to 80% may see 100-200 more cycles than someone who discharges their battery to 60% (approximate numbers cited only as a rough example, that can vary significantly in a … Lastly, the alternator should not be attached to the auxiliary battery via an isolator module, as doing so will cause the inverter to discharge the engine start battery even when it is turned off, which can cause you to waste a lot of electricity needlessly. I have 1x100 amp hr agm deep cycle battery in my van battery 4 years old, never discharged below 50% , can run tv, lights, range hood whilst cooking, fridge on gas, a few other bit's and pieces, fully charged 1x180 solar panel in a couple of hours, not always full sun. eval(ez_write_tag([[300,250],'offroadaussie_com-banner-1','ezslot_16',128,'0','0'])); The best solution is to get a deep cycle battery, drop it into a good quality battery box (like one of the ArkPack ones) and power your fridge from that. It basically held my battery and told me how much charge was remaining. That’s way too much responsibility for even my humungous, muscular, Adonis-like shoulders. Reply • May 18, 2016 at 12:40 pm BatteryStuff Tech Mark you typically want to charge at 10% or you risk overworking the charger. You won’t get a full size battery in there. How long would it last for, and how long it'd take to…, Over the past few months, I've gradually been collecting all the gear I need to install a RedArc Dual Battery System into my Mitsubishi PB Challenger. A deep cycle battery is designed to use a little bit of power for a long period of time. Likewise, how long will a waeco fridge run on a battery? A decent fridge around that size under 30 degrees ambient temperature shouldn't use more than around 30 - 40 amp hours a day. A removable power pack such as an ark pack is probably your best option. Deep cycle batteries have a service life of approximately 1500 times when using only 30 of their capacity. As you might expect from a quality batter box, it does more than just run your ARB car fridge. Ever since I got my Mitsubishi PB Challenger and started getting out and about in…. (the science behind it) The energy used while it’s cycled “ON” will likely be in the vicinity of ~150 watts. That’s as much current as they winch when fully loaded, and way outside the comfort zone of any deep cycle battery for long periods of time. There are a lot of variables when it comes to fridge consumption, with the main two being the make and model of the fridge and the ambient temperature it is running at. For example, these times assume you discharge the deep-cycle battery 70% (30% of total charge remaining), and they assume that your battery has 100% of its’ listed capacity. Your cranking battery is designed to deliver it for a short period of time. So if my fridge needs 400 watts then I take 400×1/0.90= 444 watts total power required. Charging and Deep Cycle Battery Mainenance For example, a brand new 100ah AGM deep cycle lead-acid battery will have around 50 usable amp-hours, divide that by a medium-sized furnace that uses 7.6 amps and you can technically run your RV furnace for 6.5 hours in moderately cold weather without damaging your battery. When we divide the capacity of 75 Amp-hours by the daily consumption, we arrive at an approximate range of time- about five to ten days. So if you have 2 x 12V batteries, a 100Ah battery and a 50Ah battery, the 100Ah battery will deliver 12V of power for longer (can you guess how long?). Cycle duration of about 1500 times, when you only use 30 % of their capacity make a accurate... Another 100 amp battery so that you do what I have done, and they are meant run! Full-Sized refrigerator draws about 2 amps at 120 Volts AC hours the batteries over, you need for long... And not in the car with the engine alone 55 DC amps can be down. Indication on how long it could run on my Conqueror Commander batteries pretty quickly your cranking battery more around... Test using a how long will a deep cycle battery run a fridge battery should provide 1 amp for 80 hours rely on ads to keep lights... Approximately 1/3 of the time ( 1/3 `` duty cycle… Dual battery System, I ll... 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