Inside The Twizy Electric Car Battery
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- Опубликовано: 8 сен 2024
- Despite what i said in the video we were asked to put a donate link up so if you want to help you can donate here secure.working...
The github resource I am using can be found here github.com/dex... I am basically replicating Blazej's lead acid Twizy modification. The royalty free music was supplied by bensound from www.bensound.com
Nice job. Another step closer to an FWG powered car. Can't wait to see it running
absolutely mate
Making good progress Rob, steady and sure :-)
I worked in telephone exchanges for many year with 48V battery supply.
You will barely feel the battery unless your hands are really sweaty, although the back emf from operating and releasing relays can make you jump.
The real danger is from being burnt from short circuits caused by metal tools or jewellery, only 48V but potentially hundreds of amps that will vaporise metal !
Use lots of insulation tape on spanners, screwdrivers etc. - Martin.
cheers mate - tbh I was a bit nervous lol
I'll second that. Once when we were using a 24 volt lead acid battery (normally used for powering a Mitchell cine camera) as a lab power source an accidental short circuit caused the insulation on the wires connected to it to melt in a few seconds.
Brilliant! I love this tear-down. Looking forward to seeing your battery in-action!
cheers mate
Really great to see this moving forward, plus can't wait for the joy on your face when the Twizy moves forward!
it will be awesmoe for sure lol
Beyond standard 'safety' issues,... the BMS is to control the charge/discharge 'characteristic' of the specific battery technology.
- Although the LEAD-ACID 'mimic' will allow for a - next stage - function proof,/test... does the FMG cell have an IDENTICAL 'characteristic' ???
- - If you can alter these 'curves' via software or harware thresholds over time,... to match those seen in the FMG cells during these charge/discharge cycles,... all should be well.
(and safe)
.
you didn't read up did you? refer to dexterbg
There are nice 3 phase motor power control boxes for electric bicycles. They are normaly easy to operate and they are not expensive.
For bms it is possible to use small buck+boost dc dc converter boards. Each cell in battery can have its own buck+boost board .Some of these boards can cost less then 2£ and they keep the set voltage stable even when input voltage would be variable.
not on the twizy mate the motor uses a sevcon controller which can be accessed but is fairly complex - plus you need to get into the actual BMS to access the rest of the twizy operating system
I guess if Twizy would be used on roads It would need to use original hardware. Only thing I could think of now is to build a external battery and use 220V inverter that could charge the original battery through Twizy standard charging port, but Twizy would need to be parked in order to use this charging method when on the road.
@@Kapalek84 maybe mate - seems a lot of work though when you can just crack the bms and add your own
@@ThinkingandTinkering that is true.
This video is what I was looking for. Thank you! Un saluto da Venezia.
Interesting dissection, if it was me, all the kings horses and all the kings men.....
Excellent work Rob! Looking forward to seeing how your technology compares to the old stuff....
Also, it’ll be interesting to see how much ‘control gubbins’ you end up actually needing?
Well done on all your hard work!
cheers. mate - tbh it is pretty interesting just from the car control point of view
Great content Robert, looking forward to the tests.
cheers mate
Very pleased to see you start working on the twizzy. A year went by since i saw it in the shop and wanted to give you a hand with that. Let me know if i can help. Cheers mate!
will do mate and cheers
@Crash&Burn Then be the one to do something interesting to take apart of! 👍
Thank you sir 🙏
cheers mate
Twizy Battery TearDown!😎👍🧤🧤
awesome
Thank you mate for the update
cheers mate
keep up the good work your doing Robert
cheers mate
you too Robert your doing the world a grate service.
Building model of Renault Twizy, Thanks for great content!
damn Rob, you're really back in it :D thanks for all the vids
cheers mate
Can't wait to see your twizzy battery mate
it's getting there mate
Glad to see you update this!
cheers mate
You alum. cover needs a lift ring on each side - use a hoist. Stuff inside gets knocked loose after much use, you know! JB Weld is just as serviceable as TIG welkds, really.
speak to renault mate lol
Hi Rob. Looking forward to the vid putiing it back together. If you are like me, there will be three bits left over.
lol - I ama fruid it is why I spend so much time labelling stuff - plus I have the slow version of the speeded up bit - most of that I will help me to put it back together
Cheers Rob - fun to see you are still at it. You guys are like Leonardo DaVinci - lots of different things that interest you and that you could pursue! Do you have an estimate for the generation of batteries you'll first put in the Twizy compare to the current pack? i.e. weight and power comparison? Thanks for sharing this.
cheers mate - but i am afraid i have no idea as to comparisons just yet
Watching this with the closed captions on is hilarious!! Never heard of a turd screwdriver before !!
What is the absolute highest voltage the batteryback has going in/out? Is it ~52V? There are alot of opinions about the "HV"-side.
Contact me if you need help with the VirtualBMS, Robert. Also note there was a small fix to the SimpleBMS template three days ago, be sure to fetch that. SimpleBMS is a good starting point.
Like what your doing.Sometimes a little hard to here though, is it possible to get the mike closer?
yeah I thought that - I'll do better on the next one mate
Hay Rob! I don't know if will see this but there is another RUclipsr Called "Next EV" hes had success in getting into the gubbins of the Twizy, maybe you both could link up and put your cells in his car or he could help you get yours into your car! Worth a shot.
Congratulations, @Robert Murray-Smith .Very good video. Do you know if the battery for Twizy 45 and Twizy 80 are interchangeable?
Cars are nice, but they have form-factor constraints on drop in replacements that you'll find inconvenient to match. Why not focus on Home Power storage for Solar/Wind/Microhydro, etc. instead, where the shape, size and weight are less critical (and the main competition, deep cycle FLA batteries, much easier to beat on those points)? Here's the thing: The cost of buying and replacing battery banks for Home Power applications is a major inhibiting factor, as the costs of both Solar Panels and Wind Turbines are plummeting. Moreover, its difficult to accumulate and connect battery storage capacity in regular small increments. If you could offer a monthly subscription to buy your paper Carbon batteries/supercapacitors in one or a few Blades at a time, on a regular basis, it would be a winner. I could easily install two 400W Wind Turbines on utility poles I've already got, but after lurching through FLA battery issues with a 100W Solar Panel, I tested for several months, I'm on hold on the Home Power project, over batteries. I (and, I'm sure, others) would love to subscribe for your Blades on a monthly basis, and grow thousands of dollars (and Watt-hours) worth of storage capacity over a period of 2-3 years, at between, say, $40 - $120 per month. Selling power storage capacity in discrete increments on subscription isn't being done anywhere, but is something most Home Power enthusiasts would go for. With your snap-in interconnects, and programmable controller, all you need is a cheap chassis that you can give away with every X# of Blades purchased (i.e. half the number required to fill it), and you've got a huge value proposition there. People would overprovision themselves with storage and add more Solar or another Turbine if the storage problem were solved this way; you'd end up selling both as accessories to the storage bank itself (which really is the biggest bugaboo in Home Power).
we all do what we do mate -if you think it is better to go another way then by all means give it a go - cheers
@@ThinkingandTinkering I'm just talking about selling *the same Blades* to *additional customers* that you may be able to address *sooner* . "Off-the-Grid" or non-Intertie Home Power systems may not be very big in the UK, but they are here (and in CA & AU). There could be thousands of people subscribing to buy new Blades each month, assuming the controller program just managed the ramping up of storage in discrete increments - a relatively simple software issue. Because 'Direct Sales' will always net you more than sales through dealers/distributors, the question is: 'What way of productizing the Blades makes those direct consumer purchases most user-friendly?' It is unlikely (although not impossible) that adding to an electric car's range incrementally would be practical, but in Home Power, most users do that anyway - just in bigger, heavier chunks of nasty, obsolete, acid-bathed Lead.
@@PressToDigitate i hear you
@@ThinkingandTinkering (and, Yes, I've already emailed Steve about setting up manufacturing for them here in Virginia, as well at some point...)
@@PressToDigitate awesome
Please is there a follow up video, to using the Arduino based BMS emulator to run the Twizy on the Lead Acid test batterys, to see if it fools the EMS im really interested in this, as i would like to upgrade the capacity of my own battery. Regards Richard
Nice to see the twizy again.
Keep up the great work!
cheers mate
Incredible how fast you can work to a bit of music. :)
lol
Why do you need double rubber gloves for a 50V battery? Non-metal screw drivers are far more important for not producing a short circuit...
Only if he is wearing any jewelry, not for shock hazard but you do not want a ring on your finger shorting out a cell/s and getting red hot. :)
Came up with a different control/trigger option instead of an Adriano.
Hi. Can you tell, is there somekind of automatic battery heater. Greets Matti from cold Finland.
It was about time.. XD
I understand everything you said, but you need to respect the media rules.
This was the original project and demonstrator, until this is not done, few people would really jump to think that your new battery designs are actually useful.
If you accomplish this, everything else would follow with ease. I wish you the best.
i would love the old cells
it was an interesting video , , verry interested to see wat is needd to get the twizzy controlls to work on any battery as long as its the right voltage , i think you can sell that alone and make some money
thre plenty of twizzies available with the batterypack taken out as those are leased from renault the vehicle left isnt mush more than a garden ornament unless you have a way to run it on different batteries
Aren't Twizy batteries usually leased? Didn't know you could buy that one from Renault.
interesting! What kind of battery modules will you use? Im considering to do the same for old 22KW Renault battery on Kangoo E.Z. I dont know whats needed for replacement if controll management doesnt allow replacement cells. I look forward to hear from you!
Rob, When will this blade battery be available?
Cool ! Progress. If you need any help with the electronics/programming, i'd be more than happy.
Oh, you should be wearing protective Glasses !
They don't just protect the eyes from flying saucers, but assist in seeing small things, like a screwdriver, that battery, the door ... ;)
cheers mate - but tbh i quite like struggeling through -helps me learn - i'll go look for some glasses right now lol
@@ThinkingandTinkering Great Attitude to have !
BTW - beer googles are not the same kind of glasses.
@@aga5897 one i thought we shared mate lol
Hi Robert: if I simply wanted to replace each old cell with a new one of the same capacity (or higher) then I shouldn't make any changes to the BMS ... right?
Very nice Christmas comes early again! IRC the Twizzy's original batteries are a leased item? So did you buy it off them somehow?
no mate - I just took it apart - I guess ig they charge me I'll have to put it back together or pay
@@ThinkingandTinkering It tis what it is I hope it works out or they just never notice.
@@Barskor1 they have changed their attitude a lot and now support open source - so who knows
@@ThinkingandTinkering Wonderful I hope they just let people get on with their lives and make the world a better place, Keep up the great work Robert.
Thanks Rob! I wish i could knew about virtual bms before i sold my leaf cells, damn i feel sorry now! 😶
that's a shame mate for sure
@@ThinkingandTinkering what happens to original cells? For experimenting or for sell?
@@eddieeddie7715 when i have done i'll probably put the whole thing back together and return it to renault
The Twizy battery is inside such a weighty and bulky enclosure partly to contain an explosion - should the li-ion cells go into meltdown. If your battery technology is much safer than li-ion, you should be able to dispense with the existing box and build a much lighter one - possibly even of a rigid plastic.. Of course, the weight savings of doing so would go towards increasing the vehicle's overall performance.
What is the dimenssions od cells?
Thanks
Hi. Have you thought about setting up a Patreon link so people can donate on a regular basis?
yes mate - but it didn't work for us
So if I find the twizy without the battery can I make the battery myself? I did a lot of battery's in my life but not for cars
Are your batteries and supercapacitors for sale as yet? Interesting video.
2 years later , and no progress
How much it cost for new one
Nice Video WhatsApp is the Modell of Zehe Modell vor the Batterie
How many cells?
Good evening Roger, what happened? No update?
Brother,
We have friend with electric scooter,
do you provide such battery,
and,
how much would that set him back ...
Nice video; but, you really need to 'normalize' the voice and music levels. The music is extremely loud when volume is set for your voice.
ok mate cheers
I am fine with it I like Robert focused on the real tasks and not on showmanship.
What is the size of Twizy battery box?
Yeeeeeeeeeeeeeeeeeeeeeeeees!
lol
Dear Sir Robert,
Good afternoon from Pakistan.
My country has focused on renewable energy and main source is solar.
Almost everything ok but we don't have good storage batteries for domestic use.
I had researched a little and found nickel iron and nickel cadmium could be good option for small systems. But both batteries are not available in our market due to high prices and lack of good publicity.
Can we make replica of iron Edison battery?
Or could we go for another option which could last for at least 5 to 7 years.
Temperature is main issue in summer, it's 45 degree (+- ) almost daily.
So we need those batteries which could perform well in high temperature.
Need your guidelines please.
I thank you
I am afraid all the guidance I can give is in the videos - sorry about that
For the most part I enjoyed it, sadly the music was twice as loud as your speaking voice,so it was tad hard on the ears to start, then just took off the headphones.
I'll adjust that for later
I need to speed up video 1.5 times to watch it.
ok - you do have another option mate - don't bother
@@ThinkingandTinkering I love your videos, Robert. I am a big supporter.
What is a twisy 🤔🤓
Er...What is a Twizzy?
probably a typo lol
it's an electric quad cycle produced by Renault - Twizy
@@ThinkingandTinkering Quite... I should have known that.
@@a0cdhd no worries mate
The horrid voice audio aside, maybe watch back your videos before posting so you don't blow people's hearing with the music overlay. It's called volume leveling, and it's important.
I went and looked at a couple of your vids - your sound is just horrible! - especially the outside one - here's a few words to make a sentence from - just play with it and see what you come up with - kettle, black, pot, calling - lol - so much easier to criticise isn't It mate?