RET2
SILVER Star
Not to be a nay sayer but this sounds sketchy?
12v Fridge Group Buy
- Thread starter Phulcrum
- Start date
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All the models are on Amazon. They list 45W power consumption. Assume 12.5V, that's only ~3.6amp.
I've had a 65qt Edgestar (Whynter) for about 5 years now. It is rated at 60W and generally pulls 5A. With a 2nd battery (G31) and a 100W panel, things stay topped off no problem.
- Thread starter
- #23
I like the dual zone 75L
This one? The price seems too good to be true....
[Hot Item] TW75 Alpicool 75L New Product Car Refrigerator Mini Camping Fridge Compressor Freezer DC 12V 24V AC Adaptor
Model NO.: TW75 Type: Compressor Car Refrigerator Capacity: 75L Voltage: DC12V 24V AC100-240V Refrigeration Temperature Scope: -18℃~10℃ Certification: CE, RoHS, C-Tick
www.made-in-china.com
RET2
SILVER Star
Well you know what they say?This one? The price seems too good to be true....
[Hot Item] TW75 Alpicool 75L New Product Car Refrigerator Mini Camping Fridge Compressor Freezer DC 12V 24V AC Adaptor
Model NO.: TW75 Type: Compressor Car Refrigerator Capacity: 75L Voltage: DC12V 24V AC100-240V Refrigeration Temperature Scope: -18℃~10℃ Certification: CE, RoHS, C-Tickwww.made-in-china.com
RET2
SILVER Star
but the catch is FOB which means you have to swim over and pick it up
May have a little bat juice left in the bottom.
RET2
SILVER Star
No charge, it's a freebee
- Thread starter
- #30
This one? The price seems too good to be true....
[Hot Item] TW75 Alpicool 75L New Product Car Refrigerator Mini Camping Fridge Compressor Freezer DC 12V 24V AC Adaptor
Model NO.: TW75 Type: Compressor Car Refrigerator Capacity: 75L Voltage: DC12V 24V AC100-240V Refrigeration Temperature Scope: -18℃~10℃ Certification: CE, RoHS, C-Tickwww.made-in-china.com
you cant get it here for less than 734$ Shipping is over 500. Thats why we are attempting to do this group buy. it may turn in to something bigger after the first round.
75 dual zone for me please!
Are those specs on size accurate? 26x22x14?
If the dimensions are in inches... and if the wall thickness is about 3.25" all around, it comes out to 75L internal volume... but, IF is a big word...
- Thread starter
- #36
I dont know what spec you're looking at, but i just the measured the 75L and its 75L (or damn close).
Heres the breakdown:
The Pricing and sizes are as follows:
CF45: 27”x 13.5”x 18” Price: 325$
E60: 32.5” x19”x 18” Price : 450 without the optional internal battery . Battery is 75$
E75: 39”x 21” 18.5” Price: 675 without battery, 750 with. Dual Zone Unit.
TW75L: 32.5” x 21” x 18.5 Price 650 Dual Zone
TW95L: 35.5x 21”x 18.5” Price 725 Dual zone
All units are Bluetooth enabled and upgraded to a LG compressor, which has a three year warranty.
Heres the breakdown:
The Pricing and sizes are as follows:
CF45: 27”x 13.5”x 18” Price: 325$
E60: 32.5” x19”x 18” Price : 450 without the optional internal battery . Battery is 75$
E75: 39”x 21” 18.5” Price: 675 without battery, 750 with. Dual Zone Unit.
TW75L: 32.5” x 21” x 18.5 Price 650 Dual Zone
TW95L: 35.5x 21”x 18.5” Price 725 Dual zone
All units are Bluetooth enabled and upgraded to a LG compressor, which has a three year warranty.
RET2
SILVER Star
$650 is a killer price point.
So on the subject of battery drain. These display the supply voltage and have an auto cut off if they get too low. They also have "Eco" and
"Max" modes. I have left mine plugged in without engine operation longer than I ever could with my Dometic thermo-electric. So far it's taken a beating and works flawlessly. It's made numerous trips including Mojave. Thus far I am happy with it.
Frank
"Max" modes. I have left mine plugged in without engine operation longer than I ever could with my Dometic thermo-electric. So far it's taken a beating and works flawlessly. It's made numerous trips including Mojave. Thus far I am happy with it.
Frank
I did a test to ascertain the steady state power draw of the 95L unit which will have the highest energy consumption of the options due to the largest surface area to conduct heat from ambient. For those who just want the bottom line, typical consumption overnight with an average ambient temp of 50 degF will be about 5Ah.
For those who like the tech, here are the assumptions, test parameters, and conclusions.
The test performed is a severe case scenario where the conclusions assume the system is operated over 10 hours on a hot day (60-100 degF swing). The cooler was started from an ambient at rest condition, allowed to reach steady state, and then monitored for on and off current consumption vs. time to assess and average DC current draw.
Test Details:
Ambient: 80 degF
Starting internal temp as reported by the unit: 68 / 66 degF (fridge/freezer)
Target temperatures: 34/28 degF fridge/ freezer
Time to reach target temperature: 18:41 (mm:ss)
Dwell duration: 14:50 (mm:ss) or 890 seconds
On duration: 05:42 (mm:ss) or 342 seconds
Peak current draw observed during test (start up): 6.7A
Steady state current draw: 4.8A
Quiet loads: 0.075A
Energy consumed in 1 hour (342/890 * 4.8): 1.84A + quiet loads ((1-342/890)*.075A) 0.046 = 1.89A
Steady state Power (13.6V * 2A): 27.2W
The unit averaged 1.89A at 80 degF ambient in the shade . So, over 10 hours at an average of 80 degF (assume a swing of 60-100 degF over the day, 34/28 degF fridge/freezer) it will consume 18.9Ah or 19Ah in rounded numbers. At 13.6V this equates to 27.2W or 30W in round numbers.
Note that the heat transfer is linearly related to the difference in temperature from the hot vs cold region. Assuming 32 degF average of the zones, the deltaT during this test was 48 degF. If it is 40 degF outside, the deltaT is then 8 degF, and the consumption over 10 hours would only be about 3-3.5Ah (1.84 * 8/48). A general overnight consumption at 50 degF would then be 5Ah. This should hopefully give all a good idea of battery drain when the vehicle is off. If one were to operate the cooler on a hot day on a single battery vehicle with no solar support one would probably want to start the vehicle ever 6 hours or so to keep the battery charged.
On the subject of solar, the average consumption 30W is easily supported by even a small 40W panel should one want to leave the system in a hot ambient for extended periods of time.
Frank
For those who like the tech, here are the assumptions, test parameters, and conclusions.
The test performed is a severe case scenario where the conclusions assume the system is operated over 10 hours on a hot day (60-100 degF swing). The cooler was started from an ambient at rest condition, allowed to reach steady state, and then monitored for on and off current consumption vs. time to assess and average DC current draw.
Test Details:
Ambient: 80 degF
Starting internal temp as reported by the unit: 68 / 66 degF (fridge/freezer)
Target temperatures: 34/28 degF fridge/ freezer
Time to reach target temperature: 18:41 (mm:ss)
Dwell duration: 14:50 (mm:ss) or 890 seconds
On duration: 05:42 (mm:ss) or 342 seconds
Peak current draw observed during test (start up): 6.7A
Steady state current draw: 4.8A
Quiet loads: 0.075A
Energy consumed in 1 hour (342/890 * 4.8): 1.84A + quiet loads ((1-342/890)*.075A) 0.046 = 1.89A
Steady state Power (13.6V * 2A): 27.2W
The unit averaged 1.89A at 80 degF ambient in the shade . So, over 10 hours at an average of 80 degF (assume a swing of 60-100 degF over the day, 34/28 degF fridge/freezer) it will consume 18.9Ah or 19Ah in rounded numbers. At 13.6V this equates to 27.2W or 30W in round numbers.
Note that the heat transfer is linearly related to the difference in temperature from the hot vs cold region. Assuming 32 degF average of the zones, the deltaT during this test was 48 degF. If it is 40 degF outside, the deltaT is then 8 degF, and the consumption over 10 hours would only be about 3-3.5Ah (1.84 * 8/48). A general overnight consumption at 50 degF would then be 5Ah. This should hopefully give all a good idea of battery drain when the vehicle is off. If one were to operate the cooler on a hot day on a single battery vehicle with no solar support one would probably want to start the vehicle ever 6 hours or so to keep the battery charged.
On the subject of solar, the average consumption 30W is easily supported by even a small 40W panel should one want to leave the system in a hot ambient for extended periods of time.
Frank
