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Messages - jesus

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1
Zero Motorcycles Forum | 2013+ / Re: zero 11.4 2013 problems
« on: March 25, 2023, 05:47:59 AM »
today I charged the bike with my benchtop power supply set to 105vdc 3amps.
I only charged for 1hour as I ran out of time.
my multimeter read 101v after charging.
the meanwell still don't charge, the BMS light still haven't seen them.
tomorrow I will spend more time charging to maybe 108v
I'm not sure if the bms is dead or is triggering faults or something else???

2
Zero Motorcycles Forum | 2013+ / Re: zero 11.4 2013 problems
« on: March 24, 2023, 02:25:25 AM »
"at the terminals" I removed the doghouse cover and measure before the contactor.

if NMC is fine at 3.4v for cell why is the BMS shutting down?

3
Zero Motorcycles Forum | 2013+ / Re: zero 11.4 2013 problems
« on: March 23, 2023, 09:17:56 PM »
- the front BMS lights never blink, even when I press reset, only ccu blinks

- I will check today that chargers are outputting correct voltage

- it is possible that battery is too discharged to allow charging. from my estimate the cells are at 3.4v maybe for the chemistry zero is using this is too discharged.

I could still try to bypass charging system and charge the battery a little bit, I can either connect to the contactor doghouse. or trigger the contactor.

4
Zero Motorcycles Forum | 2013+ / Re: zero 11.4 2013 problems
« on: March 23, 2023, 04:22:48 AM »
ok today I tried charging the bike.
-theres a clicking sound every second or so close to the chargers
-the chargers are energized
-when I turn the key, error O1 comes up

please see two videos attached



5
Zero Motorcycles Forum | 2013+ / Re: zero 11.4 2013 problems
« on: March 22, 2023, 09:35:35 PM »
ok sounds like the wiring of the contactor is more complex than described in the wiring diagram.

6
Zero Motorcycles Forum | 2013+ / Re: zero 11.4 2013 problems
« on: March 21, 2023, 11:53:38 PM »
I will try charging the bike again tomorrow.

let's say one of the 28 cells is over charged, and the pack keeps charging what mechanism wether ccu or BMS cuts out the charge to prevent overcharging

7
Zero Motorcycles Forum | 2013+ / Re: zero 11.4 2013 problems
« on: March 21, 2023, 06:57:58 AM »
i read a little about Dr bass standalone battery trailer.
1) When I enable contactor standalone.... am I then able to connect to MBB BMS and read cell voltages ?

2) Where is the circuitry designed to cutoff charge ??? is it the ccu? is it the BMS? are the mean well PSU connected to the contactor? sorry for ignorance, complicated motorcycle...

8
Zero Motorcycles Forum | 2013+ / Re: zero 11.4 2013 problems
« on: March 20, 2023, 10:22:45 PM »
I pressed the reset button, nothing happened no lights.

am I supposed to get lights when pressing ?????

9
Zero Motorcycles Forum | 2013+ / zero 11.4 2013 problems
« on: March 17, 2023, 12:39:49 AM »
ok guys I bought a 2013 zero S.

when I turned it, dash came up flashing battery level.

I put multimeter to battery contacts I got 95v

at this point I'm assuming the battery is not getting charge.

I will be diagnosing chargers, charger fuse.

but I don't have a lot of information regarding the ccu

what is it what does it look like where is it located ???

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