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[valnar]

(bike not in long term storage mode - which turns on after 30 days, but the manual states to check the SOC at least once a month - this way the storage mode is useless)

Ain't that the truth.  Who's going to trust Zero with not checking their bike monthly.

[staples]

I wonder, as Zero has added this always active OSB2 port on the Zero's for Europe, in which way we coulded use this port to communicate with the motorcycle from distance or use it as a data collection point to drive by example a IFTTT script for the charging of the motorcycle to 80%, or monitor when the bike is charged?

I'm not a electronics or It specialist, but as we can't avoid loosing 1% of load each day, why not using this in a positive way for us as users?

I would personally be very happy to have 2 extra functions on my 2020 FXS, being:

• to be able to see the present loading of my bike by using a web app on my phone ad distance
• to be able to stop automatically the charging of my bike when I'm at work without the need to go to the garage. I haven't always the time or I forget to do so, by result I do overload my bike regulary, which would be nice to avoid

It the thinking above to simplistic? Is there some one in the forum how has more indept knowledge about this or maybe is there someone how has already worked on this.

Best regards,

Jan

This is exactly why I want the 12v always on circuit on my 2018 FXS. I tied a small microcontroller (ESP-01) to the OBD-II port and so can monitor the bike while it is charging or powered on and within wifi range of my house. See my code. I'm just using a little USB battery pack to power it for now.

[Auriga]

I think Zero has probably added a second low power dc/dc converter just to provide the 12v pin on the European OBD socket.

I doubt they would leave the main converter enabled all the time, not least because it would mean they would need to add a relay and some additional electronics so that the lights and ABS module are active only when the bike is keyed on.  Given there is a second socket for this, it's probably a self contained unit that is just tapped into B+ and the existing lines going to the original socket, either in the factory, or maybe even in the Netherlands to ensure imported bikes comply with the EU homologation rules.

They may be using an inefficient dc/dc converter which would explain why the SOC drops so much quicker.  If it is a separate converter, it would be easy to check.  If the 12v supply is still present in the second OBD socket even when the main dc/dc converter is disconnected, there has to be an additional unit.

If anyone wants a permanent 12v feed, why not use something similar: small 3w or 10w PCB mounted dc/dc converters are available at relatively low price. Build one into a small case, fit an inline fuse just to be safe, tap into the B+ supply, and you'll have a constant 12v available for trackers or anything else you need...

Ulster Zero

I bet they went with the relay/ transistor switch. Small, cheap dcdc converters usually don't accept >100V input. Here is the digikey page for converters that can take that delta V. There are only 4 choices and they are not cheap. A transistor switch/relay would cost less than 5...

https://www.digikey.com/en/products/filter/power-supplies-board-mount/922?s=N4IgjCBcoKwOwGYqgMZQGYEMA2BnApgDQgD2UA2uAAwBsVATACwgC6xADgC5QgDKnAJwCWAOwDmIAL7EwMejGQg0kLHiKkKIABxw4YLaw7dIfQaInSQAWgPQlGHAWJlIlfTRqtLV%2BouWCAV3UXSgU2EC4eKUlJIA

[ms_smart]

This is a little off topic since observed on a Zero SR/S. I have permanently mounted a Raspberry Pi to the OBD2 port that gets power from the USB port. I have realized, that the device is powering up ~once a day and shuts down after ~30 minutes.

I am also tracking data from the mongol api where the bike sends ~every second hour a datapoint including 12V DC voltage. Attached a chart showing the current the last 22 datapoints (44 hours).

As you can see: 12 V DC voltage drops gradually ~0.25V during the day and gets back to ~13.13V during the phase of powering up the bike.

My Raspberry Pi reads certain parameters from OBD2 including SOC and stores it in a database. I therefore know, that I am loosing roughly 1.5% / week (see attached).

[stevenh]

This is a little off topic since observed on a Zero SR/S. I have permanently mounted a Raspberry Pi to the OBD2 port that gets power from the USB port. I have realized, that the device is powering up ~once a day and shuts down after ~30 minutes.

I am also tracking data from the mongol api where the bike sends ~every second hour a datapoint including 12V DC voltage. Attached a chart showing the current the last 22 datapoints (44 hours).

As you can see: 12 V DC voltage drops gradually ~0.25V during the day and gets back to ~13.13V during the phase of powering up the bike.

My Raspberry Pi reads certain parameters from OBD2 including SOC and stores it in a database. I therefore know, that I am loosing roughly 1.5% / week (see attached).

I seem to be losing more SOC than that per week on my SR/F.  I've not carefully measured it, but I've been topping off the bike every two weeks, and my SOC has been dropping from 51% to 43% in that time-frame.  I have nothing connected to my ODB2 and the bike is not in storage mode (older firmware).  I have my charge limit set to 51%.  I just set a reminder every two weeks to plug it in, lucky it's in my basement and easy to get to.

Steve