Hybrid Supercapacitor Car Battery Part 8 - Shrinkify & Custom Monitoring Hardware
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- เผยแพร่เมื่อ 27 มิ.ย. 2024
- In this episode we'll work on shrinking the supercap battery so it will be able to fit in the stock battery location. Also we explore designing and testing our own version of battery monitoring hardware using a STM32 arm microcontroller with a sharp memory LCD, INA219 voltage & current sensor, and 3 TMP36 temperature sensors.
Mbed link for code:
os.mbed.com/users/madelectron...
Small adjustable DC Buck Converter:
amzn.to/2Cq5dKw
Hinged Plastic Enclosure:
amzn.to/2CrlyhX
Amperics 350A 120F 15V Supercapacitor Pack:
amzn.to/2EgAgbY
Dakota Lithium 12v10ah Battery:
amzn.to/2DzuqBu
Morpho Prototype Board for Nucleo-64:
oshpark.com/shared_projects/Y...
TMP36 Temperature Sensor:
amzn.to/2EgIiSp
INA219 Breakout Board:
amzn.to/2CbwCTn
Sharp Memory LCD 400x240:
www.wide.hk/index.php?route=pr...
RJ45 Waterproof Cable Gland:
amzn.to/2CooFqX
0.1 Ohm 25 Watt Power Resistor:
amzn.to/2BXbgVw
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Dude, you are a hero of the people. You are sharing your research into a technology that addresses many environmental issues caused by conventional main stream power storage methods, which are threatening the future of humanity. I would give you a million thumbs up if I could.
Liking the improvements!
Great Video
great job but i do like the other method i think with the meter mod and the set up in the trunk not in front where the weather may hurt the new technology..... or old lol i am building a ham radio set up but i need as much charging for it as possible and this is brilliant very small amount of charging involved to run the car in which it allows basically all the charging for the radio station to the other electrical resources in my mobile. the largest alternator i can use is a 200 amp one so this is perfect for my use. i will look at this video a few more times and absorb it in.... great job brothaaaaa once again every little amp i can squeeze and power i can get is a blessing !!!!
As an engineer, I often get accused of needlessly over-complicating things, but you my friend, take the concept to a whole new level :-P
I'm still looking for some more info about the daughter board you made for balancing the supercap string- Are you going to make that design publicly available, or do you have a couple spares lying around? Great project - looking forward to seeing it back in the car.
You should have measured the current from the buck converter to get a more accurate power consumption. You might find the converter consumes a lot more than 10mA
Where can we buy that sab board you are using? Did you make it yourself?
Perfect work on that, but about that 1sec that arduinos take to boot up its because of the bootloader. They have a delay command to wait for reset to program them. If you use atmega328 chips or any other standarlone, without bootloader like the stm32 is, they wont need time to start up :) Great job overall, thanks for the useful info
you can also reduce the power needed with sleep states instead of delay. I got one down to 5 uA using a low quiescent LDO.
Need a complete build video and program files so i can attempt to do a build still need to learn alot.
Are you going to make it available in your store as a complete Unit ?
wow that is cool, I have never been able to get my own microcontroller things to be very accurate, how accurate are your sensors actually?
I would venture to say within 1%.
What's the thickness and width of the copper bus bar? What's max DC current produced by the super capacitor? Were you able to measure it? I plan to apply your method on my 48v etrike with brush less DC hub motor 750w, 13s li-ion battery pack. Figured I need about 21pcs super capacitor in series. Your info would help me to make the hybrid li-ion supercapacitor for my application. So as not to cook my motor controller and motor display. Thanks.
Unfortunately, the amperica stuff is no long available on Amazon.
Can anyone point me in the right direction for a diagram with super capacitors to make a vape box mode????????? Please help me out
what is the case size
+1 subscriber. /sorry for my bad english/ Have similar idea and found your hybrid car battery project's videos here. I just wonder how it will behave on diesel car, because of the 2 step engine start (heating the glow plugs and then start the engine) and the higher start current load.
What do you think will be the minimal/recommended capacity of the supercaps that can handle for example 2.0 4 cylinder turbo diesel car?
Does the supercaps make the battery drain faster when the car is off (how fast)?
Am thinking of doing the same. Let us know your specs if you succeed for diesel!
Any reason to not use 5 Amperics 3000f supercapacitors? Would get me 600f total and is cheaper than 10 600f caps.
Both are overkill. You could easily start that car at even 8V because of the low resistance of the super caps. So 5 600F in series (120F@15V) would be sufficient together with that battery and the 0.1 Ohm resister.
How many capacitors are needed and what F?
I like the LiPo battery, my question is, could i use the same capacitor concept with a standard car battery? I would assume that this would extend the life of the god-awful batteries that most places sell... I remember getting 7 years out of batteries... just replaced a battery that was only 2 years old :-/
Yes you could. You can buy ready to use packs with 6 caps on AliExpress and Ebay. Just put them in parallel with you battery and add the 0.1 Ohm resistor between the pack and the battery. Your battery will thank you for it ;)
Why did you switch the resistor to .01 ohms 25W? Doesn't this allow a boatload more amps than the 1-5A charging/discharging current or 30A max recommended by Dakota? I'm really bad at this math, but want to understand before I'm soldering. Anyone else know the answer to this? My probably faulty use of Ohm's law gives me 120A max, and that sounds way higher than what you would want to protect this battery's life. What am I missing?
Hope you found the mistake before this, but since no one else followed up in 4 months, here it is: You're off by a factor of 10: that resistor was changed from a 0.5 ohm 200W resistor to a 0.1 ohm 25W resistor. 1/10 ohm, not a 1/100 ohm. Thus, your calculated 120A max would change to 12A -- which is under the 15A max charging current the battery was Rick mentioned in one of the earlier videos.
@@chrstphrr Thanks for clearing that up.
It's getting complicated. I will never do this, but good info.
+mlg779 the shrinking isn't complicated, just the monitoring hardware which is still optional.
We all might be geeks (or nerds) around here but I also agree this is complicating things, but good info. Also in my opinion the resistor out from the caps might be limiting other good functionality that you can get from the super capacitors, like faster power windows, better car lights, louder radio, cooler A/C and other car lighter functions. Test them 👍🏻
The resistor is between the supercaps and the LiFeP04 battery. The connection between the supercaps and the car is direct, no restrictions.
Could I possibly get some info on building this unit for myself if possible. If I can contact you in any way I would appreciate it. Thank you
The final version is just supercaps with a small lifepo4 battery in parallel with a 0.1ohm 25 watt resistor on the positive wire between the supercaps and the battery for high current isolation.
What is the overall weight?
i was about to ask the same question =D
222 ferrets
I followed your first build and learned a lot, but now you went off to nerd land and I can't follow any of it. You just geeking out, and thats cool, to each thier own. I don't get it, you replacing a startup battery, not building a space station. I think the whole LiFePo4 battery is just a bad idea. It doesn't work in the cold. It gets -20 degrees in MI. Have you heard of LTO cells, work at -50 degrees , Like 20k cycle life, Like 10 C in and out. Yinlong makes 30/40/55 a/h cells for like $50. You don't even need the supercaps with such a high C rating, and it works in the cold. Problem solved.
interesting point..... but if ya trying to use every little amp out of your alternator for a radio project this is a great idea with very little time and amps to charge the supercap.......... so i guess ya got to find a battery to trickle charge the capacitors that work in the sub below temps...... it is the battery that charges the supercaps that ur talking about right?