Solar generator for your cabin that can charge your laptop battery and then be used for fridge and other appliances.
What can a solution look like in a cabin
How many appliances do you want to use? do they need to have power all the time?
Lets say you need a:
150W – 400W
30W – 60W
40W – 120W
10W – 60W
10W – 60W
1500W
1000W
24/7
2 hours
2 hours
3 hours
3 hours
15 minutes
10 minutes
This is altogether about 2500Wh a day
The fridge/freezer is not working all the time so it takes about 800Wh to 2000Wh per day
An inverter that deliver about 2000W is ok for this situation, then you can use a charger while the air fryer is on and the fridge won’t power down
The solar input per day should be as much as possible and for an easy setup use the brands solar panels, often you can buy them together with the power station at a lower prize
This is a perfect specification of portable power station in my mind
You can carry it with you everywhere and its big enough for a backup solution at home
| Product | EcoFlow |
| Model | EcoFlow DELTA 2 |
| Max watt | 1800W |
| W hours | 1024Wh |
| 12 regulated | Yes |
| Battery type | LFP |
| Lifecycle | 3000 cycles to 80% |
| 230 volt | |
| 120 volt | Yes |
| Light | |
| USB-C Watt | 2st 100W |
| USB | 2st 12W + 2st 18W |
| Wireless charging | |
| Solar regulator | MPPT |
| Solar input | Adapter MC-4 |
| Max solar input | 500W Max 11-60V, 15A |
| Max watt charge | 1200W |
| Charging time AC | 0-80% in 50 min |
| 12v car charging | 8 A |
| Solar | 11-60 V, 15A |
| USB C PD Charging | No |
| Built in charger | Yes 1200W max, 10A |
| App | Yes |
| Support Extra Battery | Yes |
| Weight | 27 lbs / 12 kg |
| Dimensions (LxWxD) | 15.7 x 8.3 x 11 in |
| Dimensions (LxWxD) cm | (40 x 21 x 28 cm) |
| Warranty: | Up to 5 Years |
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A refrigerator use power when it works its way down in temperature, when it has come down in temperature it turns off the compressor.
My portable fridge is using about 12V 5 amps (60W) when it is running at first but when it is down at the right temperature it stops and only kicks in now and then. It only works to maintain the temperature that is set. They say that it is operating about 22% of the time and it seems be about right regarding to my observations
Depending on how much I have in the fridge, the time to get down in temperature takes about 15 minutes. I use an ice clamp to help it drop in temperature to save power. My fridge uses this formula to calculate what power it takes per day.
Formula: Current draw x average running time* (48 W: 12 V = approx. 3.75 A)
Example: 3,75 A x 22 % (22% of the time) 10W
48W * 0,22 = 10,56 Wh
10,56 * 24H = 253 Wh / day
This is how my fridge is running so the formula should be correct.
So if I use the example with the DELTA 2 with 1024 Wh then it will power my fridge for about 3 – 4 days
As you can see it runs on 230V and it takes about 0,8 Amps when its running, that would be 230 * 0,8 = 184W
So for one hour it takes about 184 Wh but it is not operating all the time so its just an estimation depending on outside temp and what’s in the fridge
Best way to check this is to measure how much power the fridge takes in 24 hours
My freezer runs on 230V and it takes about 0,9 Amps when its running, that would be 230 * 0,9 = 207 W But they have specified 274W on the label so it varies depends on temperature, 274W is probably the max power
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