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[BrianTRice@gmail.com]

No, there is no scheduling functionality onboard the controller. You would have to implement scheduling by scripting a mobile app.

[originalspacerob]

With DigiNow's permission, I've published some documentation of the v2.5 protocol and linked to a Google Doc I've been maintaining for my own sake. Contributions are invited, especially for installation.

https://zeromanual.com/index.php/DigiNow/Super_Charger_V2.5

Thank you Brain for sharing this. I was wondering how the Bluetooth communication would work. Great Documentation. Thank you both Doctorbass and Brian. Very much appreciated.


Sent from my iPhone using Tapatalk

[dennis-NL]

With DigiNow's permission, I've published some documentation of the v2.5 protocol and linked to a Google Doc I've been maintaining for my own sake. Contributions are invited, especially for installation.

https://zeromanual.com/index.php/DigiNow/Super_Charger_V2.5

Great detail !
Love to see it live when my 2.5 arrives, especially the Blue tooth monitoring/ adjusting.

Thx for the effort and getting permission from Diginow.
Really appreciated 

[dennis-NL]

On the interface:
1 Diginow 2.5 unit.
What will happen:
• 4kW instruction (will it ask for 4, but if it only can do 3.9 it's not a problem for charger?)
• 6kW instruction (will it ask for 6, but if it only can do 3.9 it's not a problem for charger?)

[dennis-NL]

Removing standard 1.3kW bellypan, charger, kabels:

NewZeroland made good video again:

[BrianTRice@gmail.com]

On the interface:
1 Diginow 2.5 unit.
What will happen:
• 4kW instruction (will it ask for 4, but if it only can do 3.9 it's not a problem for charger?)
• 6kW instruction (will it ask for 6, but if it only can do 3.9 it's not a problem for charger?)

The target power is definitely a maximum. I don't know what to tell you about requested versus actual, except that it may vary due to:
• Station voltage for an entire session or as load increases, called sag.
• High charger temperature after the first (maybe) half hour.
• A capacity limit being approached by one battery/BMS, usually a Power Tank but applies to any module on an FX.
• Battery voltage reaching the target level, triggering tapering. This will be a linear effect at the end of a session.

The charger temperature feedback should update which after a while should indicate when the controller starts cutbacks, but I haven't had time to work that out since you have to monitor it live to know. This is implemented by the charging units themselves, IIUC, and therefore is reliable even if the controller or fans fail.

There is definitely a design idea that the chargers are meant to operate as high performance travel units, which means a duty cycle of:
1. Charge fast.
2. Immediately ride, to cool the chargers down.

Or charge slow (under 40% capacity, say?). I've charged at 110V using 2 units at once at 50% power specification to get this effect. Charging at 30% specification on 3 units would distribute the power even more but I'm not configured yet to try this.

I would like to know at what level the fans turn on, and try to de-rate the chargers to avoid that, since I use a charger in place of my OEM onboard charger and would like to make it quiet(er) and last as long as possible.

[DanielCoffey]

One other factor we need to consider is the Efficiency of the charger(s) at a certain load.

Thinking of PC power supplies, they have an efficiency curve that falls off at either extreme and is usually at its best between about 60% and 80% of max load. It may be better to run the charger(s) at about 75% for the run up to 80% SOC and suffer the fan noise rather than coax the battery up to that point by running the chargers really gently.

It would be nice to hear from Brendan (at the appropriate time of course) to see what he advises.

[Richard230]

Thanks for posting that great video, Dennis. I think even I could remove the stock charger after seeing NewZeroland do it. 

[Richard230]

Thanks for that great video, Dennis. I think even I could remove the stock charger after seeing you do it. 

I didnt do it: NewZeroland did, he's great.

Sorry.  My apologies to NewZeroland.  But thanks for posting his video.  I'll correct my post.

[Erasmo]

Indeed it's mounted in a more simpler way than I would have expected, I also didn't saw the Anderson plug coming.

[nnelson65]

Thanks for this!  I've been running around for a few weeks with two active SCV2.5's and an inactive stock onboard, but this helped me get off my butt and remove the old charger last night...

Removing standard 1.3kW bellypan, charger, kabels:

NewZeroland made good video again:

[nnelson65]

OMG...I read through this and my brain hurts!  I'm computer illiterate, but need to be able to dial back my 2x SCV2.5's for 110V wall charging on occasion...is this my best bet?

With DigiNow's permission, I've published some documentation of the v2.5 protocol and linked to a Google Doc I've been maintaining for my own sake. Contributions are invited, especially for installation.

https://zeromanual.com/index.php/DigiNow/Super_Charger_V2.5

[MVetter]

OMG...I read through this and my brain hurts!  I'm computer illiterate, but need to be able to dial back my 2x SCV2.5's for 110V wall charging on occasion...is this my best bet?

One of our other customers wrote up the following:

: 1. Download [https://play.google.com/store/apps/details?id=de.kai_morich.serial_bluetooth_terminal&hl=en_US this] app for android
: 2. Open the app and select the Menu button in the top left corner, then Devices, then Bluetooth LE
: 3. Plug in the charging system / motorcycle to a power source
: 4. Press scan on the app on your phone
: 5. You should see a device discovered which includes SCv2 in it's name, select that device, the left side of the menu item should turn green
: 6. Press the menu button again, then Terminal
: 7. Once in the Terminal View, press the connect button on the top right hand corner to the left of the trash can icon
: 8. The terminal should indicate a successful connection and there will be CSV output approximately once a second
: 9. Enter a CSV string corresponding to the following - End voltage,battery amp hours,number of chargers,target wattage,1C+ flag,ramp rate in watts
::My CSV config strings:
:::-6.6kW wall charging
:::1164,104,2,1300,0,50
:::-6.6kW EV station charging
:::1164,104,2,6600,0,50
: 10. Select or compose an appropriate CSV string for your setup and input it in the entry at the bottom of the app and send it to the charger by pressing the arrow button to the right of the entry
: 11. Observe either through the zero app or some meter that the actual wattage is as desired.

[dennis-NL]

Yup, seems the same as in manual.

[BrianTRice@gmail.com]

The explanation written in the manual is overly verbose to get people through the first time. I can understand it seeming offputing.

To be fair, this protocol is not meant for human consumption. This control+monitoring system deserves a proper UI.

For now, we can definitely tighten up the language or make the description generic and simpler. I'm not sure which to do yet.