That's the average watts per hour over a 24 hour period but compressors don't work that way. They draw a BUNCH of power when the compressor first starts, then will draw less while it runs, then it will stop running for maybe 20 minutes, then repeat the process.
It's like a fluorescent light...
I'm referring to things like solar garden lights that are kept outside where winters get to -10F on a regular basis, and summers up to 80sF regularly. Naturally, some winters get down to -30F ambient and some summers get to 112F ambient.
Seems like these ups and downs would shorten the life of...
The web page doesn't say if he measured the power of the fridge when the compressor was running or not, a very important detail which was missed. The page also doesn't say how he calculated that number. Did he measure power usage over 30 days and divide by 30? Or some other method? The devil is...
These are just a combination battery pack with charge controller and invertor, and often some USB ports and other ports. They make good dumbbells though! :)
Here in Michigan my car regularly gets to 120F INSIDE the car in the summer sun, and the top of my house roof in the summer easily exceeds that on a regular basis. Yes, I actually keep a thermometer inside my car. It was hotter than expected. And I have a thermometer in my attic and that has...
If you know how to add the 12v regulator, add the 12v regulator. However if you just add a "regulator chip" that is not the same as a boost/buck convertor. Plus the regular chip might need a heat sink as it gets rid of the extra power as heat. The regular chip will only prevent the 12v output...
I tend to use clear plastic jars which do not break so easily as glass. I tried the open stackable bins to organize stuff but they got full of sawdust and dead crickets.
I'm trying to test the capacity of some AA lithium batteries that are charged from a micro-usb port. I have tested their capacity while charging, now I want to test their capacity from discharging and compare the results. I'm having a very hard time finding testers that willi go down to 1vdc or...
Solar panels do not connect to the invertor. Here's how the connections go:
Solar panels-> Battery charge controller -> Battery -> Invertor -> your devices
So this:
is meaningless.
Hi Will, I just found your channel this week as I'm very sick with some really nasty virus burning through my sinus. I like your videos.
I do have a small PV system and it works fine, it's the Harbor Freight 100w system. The panels don't create much power so I might upgrade the panels...
@MrNatural22 If you still have time, you can file a complaint with Aliexpress and they are good about refunds, though I've never done a return with them. I buy from Aliexpress all the time, about 60 orders per year. If the sellers is giving you a hard time, stop playing games and file a...
Yes I can put the batteries in a single AA holder and wire it to a tester if needed. The problem here is the range of voltage the tester will test. So I'd prefer a device that has 2 screw terminals (+ and -) for the battery.
Wow! What country and city are you in? Some countries are just like that. Oh wait you said US.
But what state? California intentional power outages didn't start until October. I mean we'd have a few power outages a year in northern Michigan but not 17 per year.
Contact mods to move the post to another forum on this site. Go to the thread you want to move and ping Will by typing in @ and his name like this: @Will Prowse . He will get a notification that he has a message where the bell is at the top of the browser window.
Welcome!
Did you get hit too...
Wow, you're right. I just found a comparison on Youtube.
Koolatron P75 uses Peltier technology: uses 91amps (1092watts) per day
Alpicool C20 uses a compressor: uses 5.8A (70W) per day
I'm testing some AA lithium batteries that are charged via a built-in micro-usb port. On power banks I normally test via a discharge test. I do not yet have the equipment to test these AA cells via a discharge test. Most USB testers only go down to 3.7vdc. But when testing a lithium power bank...
Say whaaat? It just does a simple votage regulation with no increasing of the amps like in a transformer? I've seen voltage regulator chips. They just chop down the voltage to, say 3.3vdc, and the rest of the power is lost as heat.
The panels put out 25w each at 18v, so max 1.39amps under perfect conditions. I think that's my problem, they are crappy panels. Well, it was just a starter system that I could learn on. What a waste of $160. I would have been better off getting a single Renogy panel for $160. Today is a cloudy...
From video: "These are designed for specific regions." Because in North America we use, what, 60hz power? And UK uses 50Hz I think. Or vice versa. Or versa vice. And much of Europe uses 220-240vac.
Wouldn't a travel convertor handle that though, if it can handle the amps the charger wants to draw?
Yes. The sewing machine is only drawing 0.4amps (400ma) so pretty much all solar "generators" (I hate that name) will provide that at their AC outlet. If they get a moderately expensive solar "generator" that will provide 10amps or more on the AC outlet they can use it for other things, like a...