ElectricMotorcycleForum.com

Hi,

I’ve seen lost of posts with people using power monitors and various methods to assess the power going in / out of Zero’s to gauge the health of there batteries and the capacity.

Is there a way to ’professionally’ confirm the health of the battery? I’m guessing dealers and service reps read the logs or plug into the serial terminal.

Does anybody know how a dealer or zero would assess the battery properly? Is there a way we can get the same result using the bikes software? As a dealer would?

I have access to a serial dongle and terminal and know how to download the logs.
My zero is a 2015 S but I’m guessing the approach would be similar for all 2013+ zero’s

Thanks

Thanks remmie

Just to check are we talking about the same connector? Your diagramme title is ‘J1772 signalling circuit’ and you mention 11kw stations.

For the U.K. system we have the Mennekes connector and 7kw or 43kw (I think) outputs.

On the L1, L2 etc setup for multiple chargers I had the same idea initially as I have two TC Chargers and the onboard, however the number of chargers that just offered single phase 7kw has pushed me down a different route.

I’m considering having a second cable for the multi phase approach.

Sorry, yes LiPo is not correct, however they operate in a similar manor for the purposes of charging.

Correct term - Lithium Nickel Manganese Cobalt: LiNiMnCoO2

Wow, didn’t expect all that from what I thought was a relatively straightforward question! Brian, love the work you’ve done so far - I’m a big fan and wouldn’t know a fraction of what I know today without the unofficial manual.

So far I’m gathering that I can use the two pins on the aux port but nobody is sure if this is a 5v signal, a 3.3v signal or simply a resistor.

If this point could be resolved it would help me out a great deal.

On the TC Charger point, they work great. I’ve been working with lipo cells for some time and understand the bulk of the science. My TC chargers are programmed at the factory for zero’s (cc-cv 116.4vdc) and although DigiNow will provide a better solution with CAN bus coms and a slightly different charging profile, for me personally it doesn’t justify the extra cost. If the zeros operated in the extreme ranges of the cells I may be more cautious but at 116v this doesn’t come close and any ‘special’ charging will make negligible difference to the life of the cells. I keep reading a lot in these forums where people try to make things appear more ‘special’ than they really are.... it’s a LiPo and a BMS folks! Oh and the BMS does the clever balancing of cells, not the charger!

I do have an Arduino to CAN-bus interface board available and if I can’t find the Aux connector solution I will intercept the messages and simulate the onboard charger, however that’s always a lot harder that soldering a resistor and a switch!

Thanks for the tip on the spring. The main head scratcher at the moment is the location of the magnet. I haven’t a clue how it’s seated with the rest of assembly, hence the hunt for photos.