DIY Batteryless Jump Box AKA Supercapacitor Jump Box
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- Опубліковано 21 жов 2024
- I've had these two supercapacitor strings sitting around for a year doing nothingso I decided to make a simple supercap jump box. The supercaps I used aregood for 4 cylinder cars. If you want to make something similar for V6, V8, or Diesel engines, I would reccomend getting some 3000F supercaps and running them in series since they have higher amperage and energy capacity.
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Im not sure if this has been asked or not and i know this is an older video, but would this set up be able to start a semi that has a 3/4 battery set up?
Excellent idea. everything nice and neat in one place. thank you for sharing
Use a smaller box, make the lugs / terminals protrude out the side of the box so you do not have to open it. Now you can just connect standard jumper cables to the box and the alternator/ battery., and or just fill the box with super caps, now you can jump start Semi Trucks / Tractors / Trains as well.
That is another valid idea. This project was going for ultra portable, self contained and water proof style.
Your video series on building the capacitors for the car were fantastic. I've been interested in having a capacitor array used as a compliment to a standard lead acid car battery for better starting when a battery is low on voltage. Would it be practical to use the same method you used, build a string of capacitors with a balancing protection module, but wired between the lead acid battery and the cables leading to the car starter?
Also, it appears the boards you used were already power balancing boards. What was the purpose of the additional MOSFET in combination?
Thanks for the video. If you have a running car with a good battery, then you don't need a jump box; standard booster cables will work fine. An improvement to this would be a way to switch between a boost converter input and the supercap output. The boost converter would consume power from a low battery to charge the supercaps to a maximum voltage (i.e. 14V). The retail versions have delay circuits to give you time to climb into the car before the units dump the power from the supercaps.
Supercaps are awesome for transferring power. But... if you are on your own, and your battery is dead, they wont help --- unless --- you put in a boost PSU to bring the voltage up to 14V in the super caps. Most often a dead lead acid still has some power, but not enough to turn the motor over. you can use that power to boost charge the super caps.
drive an old manual transmission that gets CVT gas mileage, last for +300k miles, and can be emergency push started with a single digit battery voltage.... why did we ever get rid of manual transmissions... the worst thing to come out of the 1970s-1990s planned obsolescence cancer. the amount of extra carbon emissions from decades of low efficiency automatic transmissions combined with the junkyard fleets of totaled 2000-2015 CVT's with barely over 100k miles on their speedos....
some kids tried to steal my car twice and couldnt get it out of the parkinglot coz the stick shifter is basically a millennial interlock device.
@@vevenaneathna "the stick shifter is basically a millennial interlock device"
I laughed very hard a this
I have a commercial version and it starts my 5.7 V8 Toyota Sequoia from a cold start with a completely dead battery. It also can charge off as little as 3-4 volts I think because it switches between series and parallel (I think). I have the 750 CCA version from OzCharge and have been impressed so far!
Not trying to advertise or anything, just exceptionally happy with my purchase :)
I was looking at the 750 CCA one from OzCharge, how has it faired since you bought it?
@@s.c.o.s4672 so far so good! I haven’t had to use it in a while but about 9 months ago it jumped my Sequoia without an issue.
@@patrickcallahan2210 cheers mate.
One thing you don't have listed above is that copper rod and lug connector, if that's what it's called.
Good idea 👍 Excellent
Nice job sir 👍
quick and profesional build . sweet.thnx for the video
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Sir, Can you give the link for purchasing the boards to which the capacitors are connected
Would like build one where do I buy the components thanks
How fast will the dead battery drain the caps if you dont hit the key fast enough?
Excellent job. Can you ad a solar charger to the box?
Did you not see the amperage it pulled while charging? The minimum it pulled during charging was like 30 amps. A small solar charger would take a month to charge that thing
How do you discharge the unit for storage? And is there a protection circuit to prevent accidental shorting out if the leads touch?
can it start the car with a dead battery connected? so, no disconections made, stricly jump box cables gator clamped to vehicles dead battery posts, connected to car?
Could this be charged with a power tool battery or is the initial current draw too much for them . ? Also what about using a big battery power tool battery power tool battery like the 40 V 36 V 56 V power tool batteries. Would that hurt the caps?
Tricky vid . I have a LFP 135Ah battery in my 4 cylinder now . The BMS is a 40 amp charge/discharge type but it starts fine . Have a problem with the alternator overcharging it though and the BMS turns everything off.
I'm wondering if attaching a string of capacitors in parallel might allow me to start 6 cylinder and diesel cars and how I might go about that.
I'm hoping this note might steer you into trying such things for bigger harder motors?
Thanks for the vids.
Would it charge using the drained battery instead?
Thank you
You use total 12 capacitor for 160f..Is it minimum for jump start?...I would try to make only 6 capacitor about 83f...Is it possible to jump?..
I think that size cap may struggle on a cold start. How would a cars alternator manage on a larger bank of caps delivering a few hundred amps for a short duration
It may, it's what I had on hand. If I had some extra cash I would have bought some 3000F supercaps off of goldmine electronics.
Why would I do this when smaller boxes are less
supercapacitor 2.7 volt x 6 in series.
Can It charge for 2 ( 5.4 volt) soldered with usb plug, so it can charge with phone wallcharger or using car usb charger mount directly to the car battery in case no one near to give the jump start
Yeppers ... most often unless the battery is bone dead and has been sitting forever, if you design it with the right caps, you can get a good enough charge on 'em from the battery you need to jump even!! If it has enough juice to give ya the dreaded starter click or power the interior lights, it'll be enough. Not to mention, they do hold high amp current for ... like ... ever. If you're the adventurous type, hit your local scrap yard, find some big old electric motors that look like they have a beer can sized little motor attached, and Bingo was his name-o ... super cap for about a buck or less. Hope that helps Homie,
Much love!!! ✌
ϻя.ƹ
Good idea, innovation through Extensive Experience indeed. Bro. 👍 🎉 🎉
OOOH...you know what you should put in that box...a buck/boost that will suck the current out of a "deadish" battery, step up the voltage and feed to the caps....it will take longer to fully bring em up...but will allow a "can't start the car" dead battery into a "plug it in, wait 20ish min then jump itself from it's dead self
Most of the time "dead" batteries aren't dead, just can't push the current and sag too low to have enough voltage to crank over the motor
Good idea Brian!
@@madelectronengineering Lets see it!
Would it be able to replace a car battery?
Can’t find the copper buzz bar that you use to link the super caps
From where did you get the bcp boards
To support your work, do you supply kits?
Where’d you buy the caps?
Hi Rick, any idea whats the best supercap available in market as of today?
Any name brand supercapacitor will probably be perfectly fine, just stay away from the cheap Chinese Rebrand reject supercapacitors and you'll be good.
DIY better than Manufactur sells. However like most DIY not done until detachable in cab, never need to open the hood.
Now that's brilliant. I have a commercial cap bank set permanently connected to my battery. It's for a classic car which is driven occasionally. It has a circuit breaker which disconnects the cap bank when not required. Otherwise the cap bank will drain the battery in about two weeks. A standard battery will hold it's voltage for a few months at most. But using a high current relay and actuating it from the cab is a serious step up. Thanks for the idea!
Where can I get the brackets for the super capacitor array?
Need one with either less than 5v. to zero volts to jumpstart. Otherwise all bets off.
Can you make me one and how much you want
What’s the copper rod you use to link the caps together
It's just a 1/4" square copper rod. Did a random Google search and bought the cheapest one shipped. I think it was $15 for 3 feet.
@@madelectronengineering copper tubing works pretty well, and you can buy it at ordinary hardware stores. Hammer it flat (at the ends) to make connections easy, and you are good to go.
nice! its all compact! the only problem is it wont stay charged for when you need it the most.
Just quick charge it on a good car for 30 seconds.
@@madelectronengineering - A weak battery will charge it too, just slower. With the volt meter you'll know when your charged. Even at 10 volts (a drained car battery) it would probably start most cars.
@Johannes Davidsen - It's impossible to charge supercapacitor too fast (too many amps) from a car battery, the internal resistance of a car battery won't allow it. When you say truck, are you thinking pickup truck or commercial truck?
OOF...they are crazy expensive! But I guess you get what you pay for.
But boy howdy do they crank over the car like it ain't even there!
Do you sell these you would have customers I'll be keen can you make me one I'll send you funds cheers
The capacitors are shorting the car system for short time -not a agood idea. you will need to conncect all the time to charger to maintain the charge. also it is very expensive way to make jumper in ame cost yu can just but good jumper that is also a powerbank and so on..
can this or would this work setup as a permanent fixture to the battery never having to worry about a dead battery
If left connected, when not charging or discharging, the supercapacitor's internal resistance will slowly drain the battery. There are circuits with relays that can be built to mitigate this.
Will damage ecu, regulator. You can't.
Alright Steve Wozniak
that back ground music was really annoying and ruined the video. Would have loved to watch it and sub but can't support someone who ruins a video on purpose.
FIRST!!!!!!!!!!!!!
this video is like watching an old Asian video or movie in which the person's lips and sounds do not match.