A
Adam8374
I recently purchased a new powerbank - Anker solix S2000. and boy, I can tell you its awsome. compared to my previous model it's smaller while having double capacity. but the best part is, that it has VERY low self-consumption. while a normal powerbank might consume some 20-50w while idle, this one takes around 5w. the difference is even larger when AC inverter is on. BUT the S2000 comes without a 12 CL socket. this is problematic if you want to plug your fridge into it.
I decided i'll try to utilize its 100w USB-C output while asking AI how to do it. It turned out to be more difficult then expected, but after about a week or so, it was sucesfull. First I purchased a simple PD trigger from amazon. I requested 15V and the fridge started. but the invertor did not. it requires very high peak current for few miliseconds to start. usb-c allows to draw 20V, but my fridge requires either 9-17V or 23-40V range. 20V is out of both of these ranges. So I needed to buy a DC-DC buck converter, to request 20V but convert it down to 17V. But the compresor still would not start. my last hope was connecting a capacitor after the DCDC converter, that would smooth out the first few ms of hight power draw. AI recommeded a 4800uF capacity, but this still was not enough. I nearly gave up at this moment, but was still nearby the shop so I tried to connect 2x 6400uF in paralel using Wago terminals. and this finally did the job. the fridge hapilly starts and runs from the usb-c in the anker, whitout needing to use AC.
the low consumption of the S2000 is a real dealbreaker. the previous powerbank consumed some 10-20% every day just for being on. this one barely takes 1%. it completely chages the way I can use it. i literally never switch it off and I know it can power my fridge for many weeks without charging. i highly recommend go and buy it. but if you want to power your fridge, I think it might make more sense just buy some small battery made for fridge specifically. I wanted to avoid it and save some space and money, but I ended up not saving much....
examples what i found online:
www.4camping.es
and few pictures from my build:
I decided i'll try to utilize its 100w USB-C output while asking AI how to do it. It turned out to be more difficult then expected, but after about a week or so, it was sucesfull. First I purchased a simple PD trigger from amazon. I requested 15V and the fridge started. but the invertor did not. it requires very high peak current for few miliseconds to start. usb-c allows to draw 20V, but my fridge requires either 9-17V or 23-40V range. 20V is out of both of these ranges. So I needed to buy a DC-DC buck converter, to request 20V but convert it down to 17V. But the compresor still would not start. my last hope was connecting a capacitor after the DCDC converter, that would smooth out the first few ms of hight power draw. AI recommeded a 4800uF capacity, but this still was not enough. I nearly gave up at this moment, but was still nearby the shop so I tried to connect 2x 6400uF in paralel using Wago terminals. and this finally did the job. the fridge hapilly starts and runs from the usb-c in the anker, whitout needing to use AC.
the low consumption of the S2000 is a real dealbreaker. the previous powerbank consumed some 10-20% every day just for being on. this one barely takes 1%. it completely chages the way I can use it. i literally never switch it off and I know it can power my fridge for many weeks without charging. i highly recommend go and buy it. but if you want to power your fridge, I think it might make more sense just buy some small battery made for fridge specifically. I wanted to avoid it and save some space and money, but I ended up not saving much....
examples what i found online:
Powerbank outdoor Viking Technology Vidar I
Batería externa para exteriores Vidar I Viking Technology con una capacidad de 38 400 mAh, una potencia de 160 W, resistencia IP65, múltiples salidas y opción de carga solar.
and few pictures from my build:
