The 60 watt Samsung figure is the maximum the laptop can draw from the provided power supply. It will draw 60 watts when charging a dead battery and maxing out the processor with intensive tasks. 60 watts is not a bad maximum draw, but it is still a big load. Especially at 24/7.
What is the need for 24/7 anyway if you don;t mind me asking?
My 90 watt adapter is pulling about 60 watts right now typing this and streaming some History channel WW documentaries The laptop battery is already full.
The coleman coolers are designed for being powered only when the engine is running, and even then they cannot cool to more than 40 degrees below ambient. Above 80 degrees F and your food will be above the 40 degree threshhold for keeping food safe. You cannot power one of these via battery power only for any length of time. Just forget the idea. If you cannot take the product back or sell it, just take a sledgehammer to it ands call it a lesson learned the hard way.
Electric coffee makers are energy hogs. There are better methods for having coffee if you enter this lifestyle.
You are still looking at a large expensive battery bank and a lot of solar. Significantly less would be needed if you would just get a real compressor fridge. Those thermo electric coolers are a Joke. hideously inefficient, and in hot temps, hideously ineffective.
You want a fridge, this is the cheapest most efficient front loading compressor fridge available.
http://www.truckfridge.com/tf49acdc.html.
The inverter powering a 120Vac dorm fridge will still use twice the battery power.
I dont want to continue. I feel as If I am being too negative, but your expectations of battery power are unrealistic.
You are seeking to do things others have done before you. The Simple system you are envisioning to power what you want, is actually very energy intensive. The amount of battery capacity required is massive. Properly recharging those batteries will not be easy, and at some point the batteries will just fall flat, and then you will seek out ways to keep them healthier, by using less battery power, and having better recharging sources.
The vehicle's alternator is not a magical nor instant battery charger. It is actually quite limited in its abilities despite the attitudes of the populace toward its abilities. If you run a van's starting battery dead, perhaps it can recharge it to 80% in 5 hours of driving. Another 5 hours or more would be needed to get it to "100%" and if one were really trying to reach 100% and tested the battery at this point with a Hydrometer reading the specific gravity, well most people's Idea of 100% is in reality about 92%. A true 100% is actually difficult to achieve and the alternator is probably the poorest method for accomplishing that goal. It is a goal because that 100% is like a battery reset button, like restarting a frozen windows computer. Batteries cyled in the 50 to 805 range without a weekly or every 10 day near 100% recharge are not going to live long.
Wiring up an effective system is a Lot of work. Expect the labor costs to be the same or a perhaps 35% more than the costs of the battery(s), inverter, solar, Fridge, solar controller/panel, wiring, terminals, Solenoids, fuses and all the other little things needed to complete it. I'd have a hard time trusting any such place to actually do a good job, and mate the right products and wiring sizes with the right battery capacity and solar. Like many modern mechanics, they are just part replacers and have little ability to plan ahead accordingly.
Start out with a cooler and Block ice.
Plug your Samsung laptop model number into amazon electronics and add "car adapter"
Buy a jumper pack and learn how to use it.
When you starting battery fails, jump it with the jumper pack, and plan to replace it with a Marine battery.
:huh: As in every minute of every day of every year?
