Search found 65 matches

by DVD3500
Tue Apr 28, 2026 12:45 pm
Forum: Batteries and Charging
Topic: DC Fastcharging via CCS2 for Renault Twizy BMS
Replies: 8
Views: 184

Re: DC Fastcharging via CCS2 for Renault Twizy BMS

Oh right, I got that confused with the Cannonball run Rivian... :-( I am getting old ...
by DVD3500
Mon Apr 27, 2026 9:39 am
Forum: Batteries and Charging
Topic: DC Fastcharging via CCS2 for Renault Twizy BMS
Replies: 8
Views: 184

Re: DC Fastcharging via CCS2 for Renault Twizy BMS

I have a similar problem with my conversion I am planning.
It is likely a ca 100 volt system but when I see the number of CCS chargers on the routes I want to drive with the car I would like to have the option: Not because I want the speed of charging but just to have the freedom of choice.

I ...
by DVD3500
Thu Apr 16, 2026 7:02 am
Forum: Projects
Topic: Tesla Roadster Battery replacement with ID.3 Modules
Replies: 23
Views: 849

Re: Tesla Roadster Battery replacement with ID.3 Modules

Looking forward to seeing this progress as I don't live too terribly far away... (Heidelberg) ... I am Stuttgart often so maybe when I get time I will take a look once it gets closer to being finished!
by DVD3500
Thu Apr 02, 2026 9:38 am
Forum: Climate Control (HVAC)
Topic: New Forum Climate Control
Replies: 6
Views: 248

Re: New Forum Climate Control

I prefer topic-specific rather than Brand/Make/Model specific forums.
In another form there is an excellent thread about getting road-legal LED headlights to work but it is part of a VW Up! thread and anyone who asks a simple general question gets attacked and flayed.... they say to open a new ...
by DVD3500
Thu Mar 19, 2026 10:20 am
Forum: News
Topic: EV1 found in the wild and being restored
Replies: 0
Views: 110

EV1 found in the wild and being restored

Please move or delete if this doesn't count as "news" but I have been watching these videos and there is a LOT of detail on how EVs work and of course history of GMs first production EV:
https://www.youtube.com/watch?v=db3CRxTmzv0
I grew up near where it was built but never saw one except in a ...
by DVD3500
Wed Mar 18, 2026 9:18 am
Forum: V2x
Topic: Energy Controller including CCS interface
Replies: 122
Views: 10225

Re: Energy Controller including CCS interface

Jogi wrote: Tue Mar 17, 2026 6:40 am It's about 300km south of you, in the north of BaWü.

Would be a day trip for a test, no problem for me.

Let's contact via PM for adresses...
Rhein-Neckar Kreis here....
by DVD3500
Fri Mar 06, 2026 8:49 am
Forum: Drive trains (motors and inverters)
Topic: Using a PMSM and inverter to generate and regulate a DC voltage
Replies: 49
Views: 4450

Re: Using a PMSM and inverter to generate and regulate a DC voltage


Ugh, I feel your pain about the battery thing. Since EVs were banned in my local autocross clubs I seriously thought about doing something similar. Except I'd been wondering about just running the phases from one motor to the other.


Banned on what grounds?
That you will beat the pants off any ...
by DVD3500
Fri Jan 30, 2026 9:24 am
Forum: General
Topic: PTC heaters
Replies: 10
Views: 338

Re: PTC heaters


That's what I did with the 3kW PTC heater from Feleten. An Arduino measures the temperatures and regulates them with PWM. SSR and PTC together cost around €250. The one from KIA looks good too. Does anyone know how it is controlled?


I was going to look into Arduino for various things on my ...
by DVD3500
Wed Jan 28, 2026 9:34 am
Forum: General
Topic: PTC heaters
Replies: 10
Views: 338

Re: PTC heaters

I have long been looking for an ethanol heater (so I can use bio-ethanol) and so far I have not found one that would be suitable for a vehicle.

Webasto has bio-diesel ones but they are too big and clunky for my 2-seater car...

I also looked into a heat-pump form a dryer but given I am as ...
by DVD3500
Mon Jan 19, 2026 9:50 am
Forum: Batteries and Charging
Topic: What do you think of the “donut” battery?
Replies: 7
Views: 541

Re: What do you think of the “donut” battery?

Germans more pessimistic?
Perish the thought! :-D
by DVD3500
Thu Jan 08, 2026 12:14 pm
Forum: News
Topic: EV Cannonball Attempt
Replies: 9
Views: 850

Re: EV Cannonball Attempt

So it's a hoverboard trailer then? :D 8-) :evil:
by DVD3500
Mon Jan 05, 2026 10:09 am
Forum: Projects
Topic: [WIP] 1977 Porsche 924 with 2019 Leaf Stack
Replies: 7
Views: 508

Re: [WIP] 1977 Porsche 924 with 2019 Leaf Stack

Nice!
I seriously thought of doing a 924 .... I had one back in the 90s....
Loved it!
by DVD3500
Mon Jan 05, 2026 10:07 am
Forum: News
Topic: EV Cannonball Attempt
Replies: 9
Views: 850

Re: EV Cannonball Attempt

One thing I was thinking is maybe a self-propelled trailer that is full of battery makes more sense.
You could use a car that is not a giant brick and if the trailer is self-propelled it would increase efficiency.
It would also mean you could detach and charge separately.

There are some self ...
by DVD3500
Fri Dec 12, 2025 9:40 am
Forum: General
Topic: How To: 12v Inductive Chaging (retrofit Heated Steering Wheel)
Replies: 8
Views: 525

Re: How To: 12v Inductive Chaging (retrofit Heated Steering Wheel)

Can I just say it is both calming and alarming that I was having almost the same thoughts the other day and seeing someone else going down this path makes me feel slightly less strange... :-)
by DVD3500
Sat Dec 06, 2025 10:16 am
Forum: General
Topic: Heating and Cooling the car with a heat pump
Replies: 23
Views: 1486

Re: Heating and Cooling the car with a heat pump

Please correct me if I am wrong but are these pretty much the same as so called "mono block" heat pump heaters/air conditioners?
I am looking for things for my Triumph Spitfire project but I think this is too big and heavy...
Still, an interesting idea!
by DVD3500
Fri Oct 10, 2025 7:29 am
Forum: General
Topic: using H2 fuel cell in EV conversion
Replies: 7
Views: 2022

Re: using H2 fuel cell in EV conversion

Can we stay pragmatic and ask where would you possibly get the hydrogen?
Also, if you do find it, the cost is likely going to make the project completely impractical unless it is being done purely as a thought experiment...

I don't want to thread-drift but I read this morning about efforts to ...
by DVD3500
Thu Oct 09, 2025 7:28 am
Forum: Nissan
Topic: Minimum HV voltage for testing
Replies: 4
Views: 1976

Re: Minimum HV voltage for testing


Really?

This has been answered like 3x in the past month. However nobody have moved this info into the wiki pages for ease of reference.

https://openinverter.org/forum/viewtopic.php?p=85368#p85368

https://openinverter.org/forum/viewtopic.php?t=3770


Wait until this moves to social media.. I ...
by DVD3500
Tue Jul 08, 2025 12:17 pm
Forum: Battery Managment (BMS)
Topic: Question about 12 Volt "starter" Battery (Please move if incorrect)
Replies: 32
Views: 22292

Re: Question about 12 Volt "starter" Battery (Please move if incorrect)

How big are each of these components?
I would like to get an idea on how to mount the all...
by DVD3500
Mon Jun 16, 2025 3:36 pm
Forum: Projects
Topic: Would keeping the Overdrive help range?
Replies: 2
Views: 924

Re: Would keeping the Overdrive help range?

Interesting and thank you!

Keeping the gearbox is mostly to make it easier to get through the TÜV. The less I change the less I have to explain.

I have an aluminum bell-housing and flywheel that bring down the weight by almost 20 KG. The gearbox itself only weighs about 15 KG (I know because I ...
by DVD3500
Mon Jun 16, 2025 12:57 pm
Forum: Projects
Topic: Would keeping the Overdrive help range?
Replies: 2
Views: 924

Would keeping the Overdrive help range?

HI All,
I haven't posted much about my project because it is still in bits and pieces all across southwestern Germany but on the weekend I took my differential to a specialist to have it refurbished and put into an aluminum case (to save weight).

The car is a '72 Triumph Spitfire. Because of the ...
by DVD3500
Mon Jun 16, 2025 12:48 pm
Forum: Battery Managment (BMS)
Topic: Question about 12 Volt "starter" Battery (Please move if incorrect)
Replies: 32
Views: 22292

Re: Question about 12 Volt "starter" Battery (Please move if incorrect)

With any luck I will tackle this next year when the conversion starts in earnest...
by DVD3500
Thu Jun 12, 2025 12:31 pm
Forum: Batteries and Charging
Topic: 20kW DC charger from china
Replies: 5
Views: 3627

Re: 20kW DC charger from china

I don't know the cell voltage but I think we are looking at only 20-22KW total.
My concern is not speed but simply if I cake a trip not being able to find a Type 2 charger close to my route.
Almost are are CCS only...
by DVD3500
Wed Jun 11, 2025 12:11 pm
Forum: Batteries and Charging
Topic: 20kW DC charger from china
Replies: 5
Views: 3627

Re: 20kW DC charger from china

Very interesting.. now if I could find something to go the other way as my conversion will likely be AC only (sub 200 volt). :-)
by DVD3500
Wed Mar 12, 2025 1:59 pm
Forum: Batteries and Charging
Topic: Please don't stone me ;-) CCS to Type 2 AC Adapter/Converter?
Replies: 16
Views: 20215

Re: Please don't stone me ;-) CCS to Type 2 AC Adapter/Converter?

Just to let people know I have not stopped researching this topic. :-D

Someone claimed there was a Tesla model a few years back that had AC charging only and that it had an onboard DC to AC charger converter that would allow DC charging without adapters... As with many claims on the internet I have ...