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Supercapacitors

by Electronoobs

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Published 30 Jul 2023

Some differences between batteries, capacitors and SuperCapacitors. Now ypou whould know when to use them. Calculate mAh using this link: https://www.convert-measurement-units.com/conversion-calculator.php?type=ladung Select units from Colomb to mAh knowing that Q = CxV so for example a 500F capacitor at 2.7V would have a charge of Q = 1350 equal to 375mAh. 🔀LINKS ------------------------------------- Buy my T-shirt: https://electronoobs-merch.creator-spring.com/listing/arduino-vs-raspberry 🤝SUPPORT ------------------------------------- Join my Arduino Course (Spanish): https://bit.ly/2JY8icE ELECTRONOOBS.io: https://electronoobs.io Help my projects on Patreon : https://www.patreon.com/ELECTRONOOBS my Q&A page: https://electronoobs.io/forum/index.php Facebook page: https://www.facebook.com/Electronoobs Canal en Español: /channel/UCL_QvUUeriC6q610RCXDlSQ

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Comments - 97

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@myboisaul9 months ago when your mom says that you have GreatScott at home 139
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@thatoneweirdkidfromschoolt95218 months ago I once shocked myself with a super capacitor in a disposable camera by accidentally touching the 2 contacts when it was charged 61
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@LMB2224 months ago Capacitors discharge not linearly, but exponential decay. 1
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@jpunditreviewsandtutorials68786 months ago Exponential decay! Capacitors are not linear 8
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@rafikamin66176 months ago Thanks for your information, I have always thought why we don't use capacitors in place of batteries. 3
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@elfnetdesigns7024 months ago different battery chemistries charge and discharge differently. A Li-ION cell will hold a stable rate of discharge until the end then drop out fast and with a proper BMS circuit the power will just cut out to save the cell from low voltage damage. A Ni-Cad will drop voltage gradually as it discharges just like an SLA will, This is the same with Alkaline cells only those cannot be recharged safely. Ni-Cad cells do not last very long and will develope a charge "memory" where it may not fully charge to capacity over time due fast charging the cell. This was the plague in 2-way radio batteries way back when. An SLA will allow a lot of current to use but will sulfate and start to bloat in time thus making the battery a hazard aside from off gassing during charge cycles ... 2
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@Engineer_Anton4 months ago “Capacsitor, ba- thery, and then the super capacistor!”
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@HaseebAdnan06 months ago Question of the year: How do you measure the voltage across lightning? 2
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@236vic2 months ago Will it discharge all or only what the item is drawing ?
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@TheMattia27c9 months ago How many mAh supercapacitor (the one in the video) has ? 8
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@lucasmatas13615 months ago The capacitor discharges exponentially* 1
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@starlordpro20774 months ago what about those large blye once in amplifiers or the ones in microwaves? i do have a few of the microwave types laying around~ and the transformers as well. might turn them into a tesla coil eventually..
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@user-bm8ws4oq9k9 months ago Can I use this to boost a 1.5v battery for a short amount of time?
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@RamanKumar-ke7xk9 months ago man are you sure that it is 500 farad capacitor 4
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@Chozo48 months ago A simple DC Boost circuit would work wonders to at least make voltage curve flatter but would discharge faster to maintain it. 2
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@aydenbourdeau66966 months ago Anybody got the link to the single 18650 charger he uses in the video
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@raymondwalker27525 months ago All caps charge up fast. No such thing as a supercap. It is the resistance in series with the circuit that affects the speed of charging. 1
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@user-ug7dn4nx7x9 months ago Tap on a clip to paste it in the text box.🎉 12
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@scott32714keiser5 months ago then use a boost converter to keep the voltage up
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@adolphtrudeau9 months ago How many mA do you lose by using a buck boost to level out the supercap voltage? 1
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@simonmasters32956 months ago Isn't a "super battery" a battery where every cell has its own super cap?
When the cap sees the battery cell it will charge to that voltage, and then rapidly absorb charge (rising quickly to the higher voltage of any charge being put across it). If the [solar] charger sees amps increasing it will assume it is safe to raise the voltage and or current depending on charge cycle phase, but when the sun goes in and clouds reduce charge rate, the super caps will discharge to battery cell.
I regularly see the MPPT on my array report a change from 200 to 450 volts DC in, 2 to 40 Amps to battery. PV production varies from 250W one minute to 2.5kW in another on grey days.
Storing 400v in a cap or super cap is probably asking for trouble, but using super caps across individual cells at 3v to 4v should both improve charge capture in variable solar conditions and then (possibly at night) assist the battery to meet high current discharge rates when inductive loads call for amps on startup.
Anyone agree or have exerience of this?
I would love to know if i am thinking correctly.
I dont think it is generally done thus ways because the super caps will only cycle between 3.4v and 4.2v in LiPo and 1.5v and 2v (or whatever it is) with Lead Acid, and the number of cycles will be minimal e.g. 3-20 times per hour ...
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@jacek-jan5 months ago 500 F??? A 0,5K???
Regular capacitor operate in mili or nano territory.
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@shapelessed4 months ago "milli-amps-hour".
Yep. I'm never watching this guy again. Baii!
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@truck-140-hp-engine.6 months ago how 12v charging 3.7v is fast better super capacitor.
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@Meteorsnipers5 months ago Sigh… I wish I had seen this like a month ago while designing my cccv circuit
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@wazileiyjh6 months ago But capacitor, the faster it charge or store the voltage the faster also it discharge
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@CALEB-kt8mn9 months ago So I was dismantling a old camera, and touched something and brrrrrrr electrocuted
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@lii1Il8 months ago Anyone know how to hook up and wire a capacitor up with a car battery? 3
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@furioustester40568 months ago So your saying that, that AA battery has the same capacity as an iphone, and half my phones battery.
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@gabedarrett13015 months ago "It can store a lot of power" is misleading. A miliamp-hour is a unit of charge, not power. Also, a farad is a unit of capacitance, not charge. And capacitor voltage doesn't decrease linearly. Even that graph is wrong: there is an asymptote at V=0. Lastly, power density is not energy density. Energy, charge, capacitance, and power are all different. For an educational channel, almost everything here is wrong ...
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@duderguy15719 months ago not good for car truck bike etc. Railgun however ✅ 💪💪😃 2
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@lukyva79558 months ago In which world do you live where Supercaps charge quickly?
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@ugurunver24039 months ago So there is a missing part in this scheme: where are super-batteries?
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@justinpatterson52919 months ago We need a hybrid. A battery with a supercap as the output. Give it built in BMS IC and have it tuneable on the output.
One sec it's: 3.7v 3A, next it's a 1.5v 2A.
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@Giga_Benek9 months ago From yesterday, i hate all caps. They HURT
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@Unintelligent709 months ago Nope cap doesn't replace battery coz low charge density