did you go new or used?
Freezers?
- Thread starter SmokeySquid
- Start date
stickfigure
Member
Used of course
You can't get a ULT25NEU model on eBay lower than about $1000 right now (that is working). You got a bargain on this one!
stickfigure
Member
People are stocking up with peptides because of the upcoming changes to customs procedures. This is driving the prices of ULT freezers up
ThatGuyJay
New Member
I’m not worried about China not producing it. I’m more worried about trying to get it into the US. I bought a used Lab freezer off eBay for just a little over a grand. I’m sitting on a 2yr supply right now at -80°C. Walgreens and CVS are getting rid of the freezers they used for the Covid vaccine. So many used freezers on the market. The freezers have a 10 to 12 year life. Most of them are 3 to 4 years old. The maker of mine is a Striling Ultracold 25L.
Is this the model that Walgreens/CVS are (or were) using?
I searched eBay and the Google and can't find anything in working condition under about $1k. Many of the vaccine freezer I am finding only go down to -20C (which my Amazon 1.3cu special already does).
ThatGuyJay
New Member
Yeah, some of them were using this model. Back during the pandemic they were using anything they could get that could do -80. Yes, they are around $1000 used they cost over 5K new.https://www.ebay.com/itm/1869201914...wdawbt9qp6&var=&widget_ver=artemis&media=COPY
Are there any people here with a strong working knowledge of electricity? I purchased a small freezer (1.1 cf) that gets pretty cold (-10 f), but not lab freezer cold. My understanding is that freezing cycles are very bad for peptides. So I’m looking into getting a UPS to not interrupt the sleep of my peptides. How much backup power do I need to keep a 79 watt freezer operating for 8-12 hours? Is it possible with a UPS that is readily available to consumers?
SmokeySquid
Registered
If you can get it to withstand the inrush current from the compressor starting on the freezer, then it probably wont last longer than an hour at most for your consumer level 1500va ups (given the tiny batteries they use). When we size them for server racks, they start to get not only humongous, but down right expensive.
My personal solution was to get one of those "power stations" that a lot of generator companies are selling now as they are much cheaper and are general purpose. Originally, it was for short power outages where I didn't want to hook up the generator but I find it incredibly useful for other stuff like camping.
That's the one I have and doing some basic math, you should get ~11 hours out of it at 80 watts assuming continuous draw (not likely).
scarywood75
Scarlett Johansson
Mmh 4h with a "big" consumer UPS maybe, so you need one that can be extended like the SMX3000C with an external battery pack, but that's getting expensive lol
I got one of the -40 3.5 cubic foot chest freezers from Amazon for 300. It is holding at -45C. I keep the extra space filled up with cheap 80 proof vodka bottles. That mix freezes around -27C. So in theory the freezer should stay well below -20 or so till all that 80 proof is melted. Should give me a couple of days at least before anything thaws.
You could put your peps in a Thermos food storage container, I tested the 47oz model, it holds about 10 kits and it took about 5.5 hours to go from -5 to 32F. If you add a couple of ice packs to the freezer I bet you could get a few more hours out it. My 1.1cuft Amazon freezer will hold three of the containers. Add temp sensor that gives you notifications and you should have enough warning to fire up a generator.
Here is a link to the post I made with more details, after testing.
I've been shopping for a freezer recently. Everytime I find one on a med/lab supply, I put the details/specs in Made-in-China and BAM! The majority are on their website at a fraction of the cost with a longer warranty ... seeing as though you'd be purchasing from the manufacturer and all.I think this would be an interesting topic for the new supplies and accessories group so I will propose the question. If it doesn't really fit here please move it or I can delete it.
Would it potentially make a difference in longevity of the peptides if they were stored below -20c? Now I know that at -80c they supposedly last an indefinite amount of time but the scientific freezers that can get that low are ridiculously expensive and probably not practical for most people. But could there be a middle ground that might buy more time in storage at a reasonable cost equipment wise?
I know from years of fixing old junk that most cheap freezers (freezer only freezers) have a manual thermostat that controls set points for the compressor cycle and they can usually be adjusted up and down a bit to account for different environmental conditions or just drift as they age. I was once able to get a chest freezer to reliably get down to -32c after changing out a thermostat that had failed and wondered if I could get one of those little cheap amazon freezers to do the same.
Something like the Honeywell H11MFB might be modifiable to get much colder than it otherwise would and would be a good size to store peps in without burning a bunch of electricity.
Would a difference of 12c really make that much of a difference? Could a little freezer like that even stand to hold that much of a temperature differential? Not sure but for $150 I'm tempted to try just to see if it's possible.
But I suppose that wouldn't mean anything if it wouldn't allow them to last any longer
Any thoughts?
Most of the M-i-C manufacturers have MOQ's of 1pc which is nice. A lot of products have minimums of 2 or more.
I'm using a -40c chest freezer from Amazon. It holds below that. Single stage.
That's awesome!! We have 2 giant chest freezers so I would really like to get a smaller, cabinet/counter lab freezer, but still haven't quite decided on one yet. ... it also doesn't help that I get side-tracked looking up "lab freezers" on made-in-china and end up looking though all the mortuary freezers listed. All the different options, slide out lengthwise or sideways ... some drawers have "mortuary prep" setting while others are colder for freezing (for longer term stays, I suppose) ... the Dexter/Morticia side comes out in me and i can't get back on track! Lol!!
Super Trips
Registered
I use a normal freezer at -20f seems to do ok
Last edited:
TooBigtoFail
New_Member
I replaced the acid batteries with 2x10amp LIFEPO4 lithium in each of my 3 Cyberpower Sine Wave UPS 1500watts. I doubled the run time - 2 hours for 65" TV with DVR/settop box (120watt drain). LIFEPO4 batteries have a BMS circuit board that protects you from making mistakes. I tested the UPS many different ways, trying to get it to burn, or melt. Nada. One year later, and still fine with LIFEPO4. They requires a charge voltage 2-3volts higher that lead acid, so this UPS does not over charge. It actually begins to cycle charge on/off when the LIFEPO4 reaches 95% full. It recharges to 50% in a day, and take about 3+ days for the drained Lithium batteries to get fully charged by the UPS. A 1500W UPS with LIFEPO4 batteries may do the trick if you only plug the freezer two hours on/off (the inside temperate will only vary 1-2 degrees). My chest freezer will remain below 32F after 4 days without power, and not opened. I now have have 4 X 100 amp LIFEPO4 connected to a 2000W sine wave inverter, for real power failures. I live in a hurricane zone. Been without power once for 5 days, so I learned. 79 watts X 12 hours=948watts. Freezer runs on/off so you need less, but a UPS is 80-90% efficient, 1500W is maybe 1200W. The defrost cycles of refrigerators are the killers. I have a Blink camera inside my freezer and can check the temp from anywhere (yes, the wifi signal is strong like the other cameras).
I don’t understand a goddamn thing you just said, but I like it! lol. I just need to know if there is a consumer product out there that I can buy.
Before you spend money on a power system, find a way to actually measure how the temperature in the freezer changes when it loses power. There are inexpensive weather stations with temp sensors that can live in a freezer, for example. There are also temp logging devices, that you could put inside a thermos like people use as extra pep protection. You may be surprised how long your freezer stays frozen without juice.
Any kind of battery that can keep a freezer cold for day would be awfully big and expensive. A generator would be a lot cheaper.
Agreed. Add thermal mass inside your freezer. Preferably something that will freeze and thaw at a low temp. My freezer has several gallons of 80 proof vodka in it. That thaws at around -18 and absorbs a ton of heat doing it. That will keep if frozen for days without power
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