[joekitch]

some clarifications about what i mean:

• onboard charge controllers or BMS' or both, not at-home charging boxes
• CCS plug, not chademo. Chademo in my area especially is falling down very quickly and even then very few of them are even fast chargers
• by "fast charger", i mean the standard 0-80% in 30 minutes speed
• in my particular application, i'll be using only a 32kw total capacity battery, so having a way to fast charge so i don't need to worry as much about range is very high priority for my build

so, what's the current state of this? Last i heard, orion was looking into putting this into their BMS'
https://www.diyelectriccar.com/forums/showpost.php?p=1051737&postcount=4
but i can't find any evidence of aftermarket or open source approaches, let alone how successful they've been

 

[joekitch]

Elcon charger,

optionally controlled via CANbus

Orion can

Also:
Emus
Elithion
EPS

in the case of elcon at least, it seems their beefiest charger is only 6.6kw capacity
https://www.elconchargers.com/catalog/item/9034090/10317340.htm

and if i were to pull up to a public DC fast charging station and plug my project in through that, i don't think i'd be getting 0-80% in 30 minutes

 

[joekitch]

i keep forgetting that is the case
in which case what i'm looking out for is a bms which can handshake with the ccs protocol at public charging stations, and a battery which can take that kind of rapid charging (which i think the Volt batteries can, given sufficient cooling)

 

[joekitch]

On the other hand, if the station charges by time rather than by energy, you want to charge at the highest power that your battery can safely handle in order to get as much energy as you can for your money.

that's the open question, how hard can you slam amps into the volt cells?
given how you can draw crazy amps from them for high power ev applications, i'm guessing they'd actually be very stable under very high charge rates

but from what i read historically, the hard part was making something open source that could talk to these ccs charging stations and tell them what they want to hear in order to charge

 

[joekitch]

fair enough
i guess then it's a matter of seeing what other people who have tried fast charging volt batteries can find.
in which case, damien's panzer uses volt batteries and a simpBMS, and looks like he can do some pretty serious charging with that setup on chademo, which was pulling like 72 amps at 400v
https://youtu.be/OpnI4HUsZVE?t=514

 

[joekitch]

Orion's teasing a CCS add-on module to their BMS' which will come out late 2020 or early 2021 and that seems like a good relatively turn key solution

 

[joekitch]

Do you have any source or information on this? I'm REALLY in the market for a BMS that can handle CCS and would love to have some info on it, any at all.

I have not emailed Orion asking about it, I encourage you to do so! Hopefully it didn't get delayed

 

[joekitch]

I emailed orion recently asking for progress on this (on official orion ccs module that works with their bms2) and the individual on the other end linked me to the zero ev ccs module
which is....very concerning as it may indicate they've given up making one internally

 

[joekitch]

both aem and orion's solutions are "in progress" with a TBD release
aem just released their CCU, combined charging unit, onboard charger with dc/dc converter, im hoping with that done there's resources freed up for ccs
some random email from orion claims Q3-Q4 2023 release for orion but i would not get my hopes up

 

[joekitch]

If the GM charger's level 3 DC component can be split out from it's level 2/1 component.....I thought they were combined and joined at the hip?

 

[joekitch]

Ah, I mean more like I believe the bolt has very slow level 2 charging.
A model 3 charger by comparison is 12kw max which is fantastic
So being able to use both fast level 2 and CCS would be gr8

 

[joekitch]

True, but I believe from the various documentation, the ccs solution based on i3 parts has the LIM dealing with the DC fast charging, and something else can run the AC bit, so those can be split apart

But if it's identical to the GM and folks want an all in one solution, that works out quite well

Actually just noticed the 2022+ Bolt euvs have an 11.5kw obc which is pretty dope