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[tracy216]

Yesterday I turned the bike on and the display came on for a second then turned off. Turned the ignition off then on and the display blinked on then off. After that it never came on again. Plugged in the charging cable and the fan turned on but not the display. Called the local dealer and they said they could trailer it tomorrow (which is today).

The bike has never been wet and the battery was around 50% after my last ride. I bought it new and put 1,100 miles on it. I'll post an update once I hear from the dealer.

[Auriga]

Sounds like it might be as simple as your 12v battery giving out. If so, you should be fixed up very soon.

[Zelidar]

Yesterday I turned the bike on and the display came on for a second then turned off. Turned the ignition off then on and the display blinked on then off. After that it never came on again. Plugged in the charging cable and the fan turned on but not the display. Called the local dealer and they said they could trailer it tomorrow (which is today).

I and others had similar problems, I linked it with charging but it could be unrelated. You might want to read that: https://www.electricmotorcycleforum.com/boards/index.php?topic=11082.0

In my case my bike was trailed to the dealer for nothing. It seemed that letting it rest for a few days was good enough.

[tracy216]

I talked to the service department this morning and was told it's the 12 volt battery. A new one has to be shipped from CA and will take 10 to 12 days. I'm hoping they'll know why the 12v died.

[Crissa]

...why do they need to ship a 12v battery from California?  It's not... special.

-Crissa

[Auriga]

...why do they need to ship a 12v battery from California?  It's not... special.

-Crissa

Technically the 12V battery is off the shelf, although not that common.

But only Zero has the 12V + the non removable heater PCB attached to the outside. The battery heater is needed if the temperature drops below freezing.

[Crissa]

Why aren't they separate pieces?  That just seems silly.

-Crissa

[ESokoloff]

Why aren't they separate pieces?  That just seems silly.

-Crissa

My guess is they are integrated in some fashion & thus one.

[Crissa]

Seems like a little two-sided tape and an heating pad would do the same thing x-x

-Crissa

[ESokoloff]

Seems like a little two-sided tape and an heating pad would do the same thing x-x

-Crissa

Don’t preach to the Choir.

[Tho ordinary dbl stick tape might tend to be an insulator rather then a conductor of heat].

[Auriga]

Seems like a little two-sided tape and an heating pad would do the same thing x-x

-Crissa

Don’t preach to the Choir.

[Tho ordinary dbl stick tape might tend to be an insulator rather then a conductor of heat].

Probably because its cheaper to buy and has less parts, and availability of non zero replacement parts aren't a priority.
It's a silicon flex pcb heater with adhesive backing.

I think if you wanted an easily swapped replacement it'd have to have a screw clamp mechanism and a metal heat spreader

[stevenh]

I still hate the idea of a little 12v lithium battery sitting on top of a 14KWH lithium battery.  I cant imagine the parasitic draw of the off current on the 14KWH battery would be a big deal with an efficient converter.  I know the DC to DC converters have been failure prone in the past, but that technology is not rocket science.  Just seems like a silly design decision to me.

I know zero is not alone and many EV's have a 12V accessory battery so clearly I am missing something.

Steve

[Eicas]

The importance of that 12 volt battery and no way to see the state of charge concerns me and I have been thinking hard wiring in a simple little LED voltmeter with a "Push to Test" switch so it would normally not have any kind of a draw.  This way one could check the battery before and after a ride to see if it was going bad?

Wonder if that mod would kill the warranty since the owners manual says not to connect anything to that 12 volt battery?

[victor6.7y]

I know zero is not alone and many EV's have a 12V accessory battery so clearly I am missing something.

Steve

The only thing I can think of is that a 12V accessory battery is better in providing high current compared to a DC/DC converter.
When using the 12V system over a few minutes; I hope the 12V charger is able to provide all the current that is needed for the 12V system.
If this would not be the case the 12V battery would need to be charged even when the bike is not driving (possible tho)(would also be better for the 12V battery I asume).

Not sure why and how they desgined the system around the 12 accesory battery.

[Thumpalong]

Do you guys know if the 2013 DS also has this 12v battery? I find this a little worrying that the bike may have a smaller battery that can cause issues.