We were in Mackay Sat, ended up going to Kings to look at a smaller car fridge because the fridge we have will fit but its a little too big for the Haval.
We ended up buying a 20l car fridge with cover plus a Lithium Battery (153.6Wh/13Ah@12V/48000Ah@3.2V) for $268.00.
The battery is charged via a USB to USB C cable, from straight out of the box to fully charged took about 8 hours.
After it was charged I disconnected the USB cable and plugged in the cig lighter from the fridge as it powered up it showed temp was 29 degrees I set the thermostat to 6 degrees. After 7 hours the empty fridge was at 6 degrees and the battery was reduced to 1 indicator light on and the 2nd was blinking, at a guess it may have had a 33% state of charge left.
My assumption is the battery would last longer with an allready cold fridge 75% full.
THere was a warning in the manual not to leave the battery on charge when fully charged or leave on charge when not supervised. Sound smart to considering the number of lithium battery fires that are occuring.
Peter_n_Margaret said
10:39 AM May 19, 2025
Gundog wrote:
THere was a warning in the manual not to leave the battery on charge when fully charged or leave on charge when not supervised. Sound smart to considering the number of lithium battery fires that are occuring.
That suggests that this battery is NOT LiFePO4, but some other lithium chemistry (there are about 6). I would not touch it with a barge pole.
13Ah is very small for any fridge. I reckon it will use power faster than you can charge the battery,
Cheers,
Peter
-- Edited by Peter_n_Margaret on Monday 19th of May 2025 10:44:39 AM
Whenarewethere said
02:37 PM May 19, 2025
Might be worthwhile looking at my 28L fridge wattage test. I did extensive testing. All the fridges about 20 to 40L will have pretty much the same energy consumption. The Waeco fridges larger than mine, their compressor is barely any larger than my 28L fridge.
https://thegreynomads.activeboard.com/t65059593
You can get down to 13AH per 24 hours but it's going to require a lot of additional insulation.
DeBe said
10:39 PM May 27, 2025
I use a 22L Brass Monkey fridge on the back seat of my car set at 0-4 Deg C. I run it of a 30Ah LiFePO4 battery siting on the back floor of the car. On average a shoping trip is 9Hrs & the picture shows the power consumption for that time. I just recharge the battery when i get home. The charger i use is designed for LiFePO4 batterys & shuts off when its fully charged. When i leavethe fridge is already down to temp.
-- Edited by DeBe on Tuesday 27th of May 2025 10:45:25 PM
We were in Mackay Sat, ended up going to Kings to look at a smaller car fridge because the fridge we have will fit but its a little too big for the Haval.
We ended up buying a 20l car fridge with cover plus a Lithium Battery (153.6Wh/13Ah@12V/48000Ah@3.2V) for $268.00.
The battery is charged via a USB to USB C cable, from straight out of the box to fully charged took about 8 hours.
After it was charged I disconnected the USB cable and plugged in the cig lighter from the fridge as it powered up it showed temp was 29 degrees I set the thermostat to 6 degrees. After 7 hours the empty fridge was at 6 degrees and the battery was reduced to 1 indicator light on and the 2nd was blinking, at a guess it may have had a 33% state of charge left.
My assumption is the battery would last longer with an allready cold fridge 75% full.
THere was a warning in the manual not to leave the battery on charge when fully charged or leave on charge when not supervised. Sound smart to considering the number of lithium battery fires that are occuring.
That suggests that this battery is NOT LiFePO4, but some other lithium chemistry (there are about 6). I would not touch it with a barge pole.
13Ah is very small for any fridge. I reckon it will use power faster than you can charge the battery,
Cheers,
Peter
-- Edited by Peter_n_Margaret on Monday 19th of May 2025 10:44:39 AM
Might be worthwhile looking at my 28L fridge wattage test. I did extensive testing. All the fridges about 20 to 40L will have pretty much the same energy consumption. The Waeco fridges larger than mine, their compressor is barely any larger than my 28L fridge.
https://thegreynomads.activeboard.com/t65059593
You can get down to 13AH per 24 hours but it's going to require a lot of additional insulation.
I use a 22L Brass Monkey fridge on the back seat of my car set at 0-4 Deg C. I run it of a 30Ah LiFePO4 battery siting on the back floor of the car. On average a shoping trip is 9Hrs & the picture shows the power consumption for that time. I just recharge the battery when i get home. The charger i use is designed for LiFePO4 batterys & shuts off when its fully charged. When i leavethe fridge is already down to temp.
-- Edited by DeBe on Tuesday 27th of May 2025 10:45:25 PM