Great to see this video, I have one on order and am waiting for it to arrive, I was just thinking the way those pads were once you cleaned them up that a small blue SM LED would fit perfect on those pads and would make nice low profile indicator, I will send you a pic once my PCB arrives, Dave from BMUK
Misfit the mad I'm not an english native speaker and this is the first time someone pointed me at this mistake. I must've used it wrongly alot of times :D I always assumed it could not be spelled like the animal :-)
+Maico English is a strange language my friend. In this case it is spelled like the animal. If you spell it the other way you're talking about exposing yourself! ;-)
so... basically I just watched someone fail to charge their super capacitors, with a solar panel and then charge them via another source and then.... nothing. I could also go outside and watch the grass grow for the same entertainment value
interesting video. Amazon used to sell those capacitor banks but when I last looked I couldn't find them any more. It's a cheap way of getting a lot of 500F caps
Go the whole distance and put volts, amps and time sequence logging onto the capacitor bank?
7 лет назад
I only had cheap 10W solar in parallel to capacitor bank. Great thing for inline solar for 12V usage without batteries. I even did some spot welding with it this stores amazing amount of amps.
This panel can put out close to 100 watts ru-vid.comUgkxOqI2yqX0XVrhR2BMJciTWrHJpG8FhJyg when positioned in the appropriate southernly direction, tilted to the optimal angle for your latitude/date, and connected to a higher capacity device than a 500. The built in kickstand angle is a fixed at 50 degrees. Up to 20% more power can be output by selecting the actual date and latitude optimal angle.The 500 will only input 3.5A maximum at 18 volts for 63 watts. Some of the excess power from the panel can be fed into a USB battery bank, charged directly from the panel while also charging a 500. This will allow you to harvest as much as 63 + 15 = 78 watts.If this panel is used to charge a larger device, such as the power station, then its full output potential can be realized.
there will be a slight capacitance difference in most electrolyte types. there's nothing to worry about. if never shore use a cap tester to test them individually. good video keep up the good work
Thanks for the video. What do you suggest to slow down current while discharging the capacitor bank? For example, If you wanted to charge battery from the super cap bank but not just at any rate but perhaps twice the current of the solar panel?
How well do you suppose super caps would perform in an impulse generator? I've often thought about using them for something like that. I just don't know how well they would tolerate a sudden short circuit discharge. I've known other more standard caps to bulge or even pop under conditions like that.
The protection board I bought had a Led already. The balancing of the Supercaps is usually quite off until they are all up to 2,7V. Interesting is that this only happens when I charge them with my powersupply set to 13,5V for a 5s configuration. When I charge them with a 5W Solar panel (18V) The individual capacitors are charging much more evenly right from the start. Surely the Caps are charged much slower but I have no idea how the can allign their voltage other then "burning" energy when the protection kicks in (which happens rarely with the 5W Panel)
Yeah, "Mad Electron Engineering" recently posted a video about those cheap crappy supercapacitors. But I guess the are good for experiments. I have some too. Thanks for the video!
One thing about capacitors, static charge volume is based on the distance between layers. When you put them in series, it may increase the maximum voltage, but it will exponentially decrease capacity. Batteries do not suffer from this aspect.
It would be interesting if you measure the total capacity of the bank using your static DC load after it is fully charged and see how close the total capacity meet their specs. Thanks.
@@chrislp8293 At the rated specs, the capacitor bank will hold 10,935 joules, or 3 watt-hours, at 16.2 volts... not kilowatt-hours, just 3 watts for 1 hour. With realistic loads, perhaps 1/2 or 2/3 of the stored energy will be available, as the voltage will drop too low for most loads.
my experience with fuses to a 6 set of 500F connected to a 45W solar panel is that it blew the 30A fuse upon connection. I have decided that the LEDs will indicate over charging and if i want to slow charge, I will use a small resistor inline with 2 LED in series. It seems to work. 1 V per 30 min charge at slow charge and 8 V TO 14V in less than 1 hour with 1 LED lit in 1ess than 1 hour.
Respect brother not lying your video postings are top a top very detailed neatly explain I bet if I had a wife even she would understand the way you explain things though. Now brother my question can this be added to a solar battery bank? to ease the load draw off the batteries?
I have a bank of 6 Maxwell 3000F caps in series as my "battery" in my TDI. Starts strong but doesn't have much reserve capacity. Have a 20 watt solar panel on the roof to keep it charged when not used for some time
I imagine that stubborn 2nd cap is somewhere closer towards the outside values allowed within tolerance. If so, then it seems a little odd to me that the module manufacturer wouldn't test, bin, and match the components more closely. Otherwise it seems to be a magnificent little board. What is the part number, where can I buy one?
Hi Julian, Obviously we can't actually see the PCB tracks but I was thinking that you had soldered the LEDs to two ground points! That would be a magical change in laws of physics. Kind Regards Alan
I bought this same solar capacitor module on Ebay. I tested the capacitance and it ended up being about 67 Farad. meaning 400 Farad each. I looked up the date sheet on these green cap Supercapacitors and it said there is a 20% tolerance so 400 Farad is within that. They all held there charge for a good amount of time except for One. I told the seller about it and they agreed to refund me $8.00 for the one bad capacitor that self discharged rather quickly. There was another one that was not as good as the other four but decided to leave it. I ordered another brand capacitor to replace this bad one. I feel it is a crap shoot when ordering these. I know those small black 120 Farad caps you can buy in a module are all junk the one I bought self discharged to 1/2 voltage in less than an hour. Mr. Julian uses one in some other videos.
Without a diode, current will flow back to the solar panel, heating it, when a cloud passes. Ever thought using a joule thieve to get optimal charging voltage? Would be loading quite faster.
Check the weight of the capacitor. tap it with a pencil or pen or small metal object. If its hollow you will hear it. My 100F samwha brand cap is for sure 100 farads. Lasts as long as two 200mAh NICD's in series when i'd test both of them in my battery powered drink mixing cup. Has even more power too! MAYBE even longer. Impressive and for sure it's 100 farads AT LEAST. And when its charged up to 3.5v like i've done a few times. It lasts for ageeeees I had a 2 farad 16v capacitor and it could barely power a motor for longer than a few seconds. It you could hear and see the motor slowing down quite noticably.. Now this 100 farad capacitor running the same motor. Just kept chugging along and the voltage barely dropped at all. If they feel excessively light or feel/sound hollow. they might be fake. if not. they could be the real thing. You could test by trying to crank a car engine with these. It should give at least 1 good second of full cranking power and start the car successfully..
This is why I laugh when government idiots think that renewable energy is the only way to power a country, give me a break, the sun doesn't always shine and the wind doesn't always blow. But a great vid none the less Julian, very educational.
A note of reference capacitors do not retain their values when placed in series. All the caps in series. What you have there is 16.2V @83.333F. Not 500F
You should play around using less in series and using buck converters. That's what I used to do on my solar panels. Instead of wasting 36 cells in series I did 10 in series. Paralleled 2x 10 cells with it so I effectively had 10s 30p and boosted up the output to charge my 12v appliances. Re arranging around a 100w solar panel instead of the 5.29A I usually get on a 100w panel with the new arrangement and a buck converter I was getting the same voltage but instead I had about 15A. So same cell amount. Different arrangement. Better output. I don't know why all major companies don't do this
Hi Julian Nice Video Your style encourages me I think, heeding the safety warnings in comments here, you do need to push the volts. Stored Coulombs go up with the SQUARE of voltage, so overcharging the capacitor pays dividends provided it can be demonstrated to take the charge "safely". Everyone is quick to jump to a conclusion that this cap is faulty, but in fact it might just be that this is perhaps a cap that is from a superior rather than inferior batch. Where is this going? You are not explicit in this video about what your thinking is regarding storing solar PV energy, but I am thinking (a) that the conversion of low voltage at the panel array location, to a higher voltage for transmission to the grid or battery storage location makes a lot of sense when cable costs are considered and (b) RGHxFTW is on the right track...
Clive is not intelligent actually, he tries to talk in a posh voice while pretty much calling things BS based on false premises. He called one product BS for a separation between both sides only being like 5mm, yet the whole thing was only for 240v max and it would actually require 15000v to jump a distance that great which would never be present, so there was no problem in the design. Clive just likes to invent problems in his head to call something BS, this is why he has never invented any circuit or isn't the designer of any products, because he doesn't actually know what he is talking about 90% of the time. You could give him the most advanced circuit from Japan and tell him it was from China and he would start thinking that it's shit and make up strange reasons for his belief. He is a joke, sorry. Anyone who calls themselves "big" before their name has a clear psychological complex.
You should make yourself a small wind turbine to charge things up on cloudy days, you have plenty of wind if the buffeting against your mic is any indication. Also a solar charge controller works perfectly fine on a turbine.
Am I right that this pack has a total 3Wh capacity (about 1 AA-battery), so for example you could run a europe legal e-bike (250W) "full throttle" for 43 seconds? that could be a nice help for 1-2 short uphills. Of course one would need to efficiently convert voltage for example to 48V(/5A) for a typical motor (just a guess) and be able to do so even when voltage drops from that 6*2.7 (16.2) towards zero as i think it does with capacitors.
Graphite airogel formed in strips then compressed and constructed like how ultra capacitors are made. The size of a 30 gal propane tank with a rewired drum motor generator with magnetic bearings and a vacuum spark gap at the core of the ultra graphite airogel power cell. Do you think you could make one?
500 f in series capacitor array is a misnomer, try 83 f bank...To make the capacitors really be helpful you need to match the Vpm of the panel.... which means more cells in series, and sadly will lower the overall capacity...
I have never thought to bother around with super capacitors, I never saw the point in them really. They have low capacities and very limited usages. My fav devices are lithium batteries, charge controllers, solar panels, LED's, buck/boost converters, mini relays, inverters etc. It is fun to mess around with components and make your own circuits for various purposes, but I have found that it's mostly a waste of time because you can always buy a far more efficient and smaller premade device from China that will be better than anything you can make yourself.
Would love to SMD leds to make it neat, It's a shame that these boards don't come with them as standard. (edited, I really need to watch these to the end before commenting :))
hi try eBay or maplin, thy last well but if you can get some replacement fiberglass tips. because ones you start to realise what thy can do to clean parts you'll keep it at the top of the tool box
It may not mean anything, but Julian do you notice how all of the other capacitors are all an equal blue colour and that second one is slightly lighter? Could this be a damaged one? I know when I damaged one of my NIMH cells that it's outer coating became paler than the others, I think it's caused by heating too much. I suspect the second one was damaged or has a design fault that lead it to overheat.
How about a 2.4 volt zener diode in reverse polarity, and a 3 volt led to burn off the excess power. As a cheap and easy capacitor balancing management system? I know any amount of real amperage being conducted through a simple system like this will burn it, but that is only on the charging portion. It should not effect the output side in any way.
Hi Julian Enjoy your videos I have a similar kit with Maxwell super capacitors purchased from USA originally to start my diesel ride on lawn mower. They give out a massive surge of power. now not used for the original purpose was considering using to power a ham radio which needs max 13.5 volts what output was the board you used to Power the bulb is this an off the shelf circuit? Thanks again for the great videos Best regards JB Sydney Australia
@wu ming quite good for short time outage + granting time for safe system shutdown... However, super capacitor voltage is not constant, so need a wide range converter. Long term UPS will use lithium storage today, instead of lead acid battery no longer ➯ need compare prices & performance...
lots of fancy sums but why not just use a battery with that solar panel would love to know what the benefit of this is over batteries other than physical size
My brother my batteries in my solar setup in getting old currently I can not afford new ones and I am thinking of using some capacitors to combine with my batteries to help them with the load. My question is can this be attach to my battery bank and what would be your recommendation?
What's the self discharge on these like? Considered replacing the battery in my lawn tractor with supercaps but don't want to have to leave it on a charger or jump start it every week.
