diy solar

diy solar

Hacking EV battery?

Aridom82

Aridom82

Learning addict
Joined
Aug 3, 2022
Messages
386
Location
Piedmont (Italy)
Hi!
I am searching online if somebody has successfully increased their EV's battery capacity adding cells in some sort of diy setup.
So far a lot of info on hacking EV chargers (i didnt knew this was a thing), but nobody getting into the car's battery bus and hacking it.
Do you know somebody?
Thanks
 
Proace already has up to 200 miles (320km) of range, why mess with it?
We have a saying:"If it ain't broke, don't fix it"
 
The integration of an EV battery is way too esoteric and model specific. There are a few places that have kits that allow you to put a larger pack than the original for older Nissan Leaf's. It requires some spoofing hardware, and it ain't cheap, and it completely replaces the original module. No way you are going to "add-on" cells to an existing EV as a DIY endeavor.
 
sunshine_eggo said:
Create your own portable charging station...

8S 280Ah cells and whatever inverter/charger you need for low rate EU charging. That's a 7kWh range extender for about US$1.5-2K
Click to expand...
What is missing is the ability to inject the power while the car is on. 7kW (gaining 20 something miles of range per hour) is a more than decent amount of range extending power while driving. It’s pretty slow if charging after the fact.
 
sunsurfer said:
Just wait for the EG4 pull behind trailer to come out of beta testing....I think they are just a couple of firmware updates away from release
Click to expand...
Actually that is hilarious but not an incredibly bad idea. A way to increase battery size is a feature missing in EVs
 
ksmithaz1 said:
No way you are going to "add-on" cells to an existing EV as a DIY endeavor.
Click to expand...
It all depends.. If you are fluent with CAN buses, protocols and hacking and foolishly brave to not to be afraid of high voltage EV batteries it's doable. But generally speaking this is one of those projects that if you need to ask how to do it is not for you.
 
MattiFin said:
If you need to ask how to do it is not for you.
Click to expand...
I needed to ask to build my diy solar system and here i am, enjoying solar power.
I dont know what is the big deal with 400v dc, i tried a setup for plasma nitriding at home with voltages in the range of 550v - 600v dc. And in my warehouse i wire 380v ac stuff all the time. My whole solar system produces three phase 380v ac, the solar panels strings produce around 300v dc.

Anyway i would like to learn more about CAN buses and protocols. I am surprised there is not a community of people hacking into EVs already.
 
Aridom82 said:
Anyway i would like to learn more about CAN buses and protocols. I am surprised there is not a community of people hacking into EVs already.
Click to expand...
Some interesting forums and posts from my bookmarks:
www.diyelectriccar.com

Dala's EVNX

www.diyelectriccar.com www.diyelectriccar.com
secondlifestorage.com

Dala's Battery-Emulator

Hi all, Thought I'd make a new thread for this, since quite a lot of development has been made since last year. I set out to connect used 400V EV packs directly as-is to grid-tied solar inverters, skipping the steps to open up packs, reconfigure for 48V, add BMS, add busbars, contactors...
secondlifestorage.com secondlifestorage.com
www.evcreate.com

BMW i3 LIM CCS Fast Charging module - EVcreate

The BMW i3 LIM lies at the heart of the CCS DC fast charging Damien reverse engineered. This is a used charge controller module (LIM) from a BMW i3.
www.evcreate.com www.evcreate.com
 
MattiFin said:
It all depends.. If you are fluent with CAN buses, protocols and hacking and foolishly brave to not to be afraid of high voltage EV batteries it's doable. But generally speaking this is one of those projects that if you need to ask how to do it is not for you.
Click to expand...
One thing mechanics do is to keep a broom stick near by when working on hybrids or an EV. That way, if you get shocked, someone can safely pry your body off before it catches fire. Makes for a nicer looking corpse for the funeral.
 
There is a big community, I watch tear down videos and rebuild videos of old cars pretty regularly.

There is just a lot of harsh mechanical skill checks, programming skill checks, equipment investment checks in dealing with traction batteries, along with the life safety critical factor of what happens if you cause the car to throw a code and get nasty with you on the highway. Best case it goes into turtle mode. The lithium retrofit for gen1/gen2 Priuses both throw nasty codes and catch on fire.
 
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