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Makes And Models => Zero Motorcycles Forum | 2013+ => Topic started by: NervEasy on March 02, 2023, 08:31:20 PM

Title: Reaaaaally slow charging to 110%
Post by: NervEasy on March 02, 2023, 08:31:20 PM
Hi,

Anyone with a 2022/2023 SR/F or SR/S and extended range option?

Is it normal for the last 10% (when charging to 110%) to take ages? Like several hours? (Charging on a 3 phase EVSE that can supply the 2 onboard chargers with more than enough power for them to go full speed).

Sincerely
Title: Re: Reaaaaally slow charging to 110%
Post by: princec on March 03, 2023, 09:31:33 PM
I should think it would be normal, yes. Wasn't the idea that the overcharge thing was something you were supposed to plan head right before a particularly long journey and set off riding immediately?

Cas :)
Title: Re: Reaaaaally slow charging to 110%
Post by: NervEasy on March 03, 2023, 10:55:55 PM
Yes that’s true. But I’m talking 4-5 hours for 10% :)
Title: Re: Reaaaaally slow charging to 110%
Post by: electrictwowheeler on March 04, 2023, 10:48:16 AM
So, I assume you have gotten your new battery, Yes?
When I access info through the OBD port it says target voltage is 116.3v for 100% and max charge voltage 117.6 which would be a full 4.2 per cell. When I charge on 120v it charges at 1.3 KW right to the point where it shuts off. No tapering under 1.3 KW. Do you think the 110% is just charging to 117.6v max at a very slow rate to soak the battery? I have always been curious about how they could get 10% extra charge without going over the 4.2v limit. According to the MBB info the charge target for 90% SOC is 112.8v so 3.5v difference between 90% and 100%. So a 1.3v difference in charging voltage wouldn't give you 10% increase but if they charged really slowly for a long time and to a higher voltage they might do it. What was the charge rate? Are there any members out there with the 110% charging feature?
Title: Re: Reaaaaally slow charging to 110%
Post by: NervEasy on March 04, 2023, 12:31:19 PM
My bike doesn’t have the extended range. A new Zero owner I know asked me if that was normal.

It seemed odd. But yeah I had many odd charging sessions on my bike. I was thinking that maybe temperature was a factor?
Title: Re: Reaaaaally slow charging to 110%
Post by: electrictwowheeler on March 05, 2023, 01:09:03 PM
You were saying in another post that you might be getting a new 2023 battery replacement so I thought you might have gotten the new features also. Are you still waiting for the new battery?
Title: Re: Reaaaaally slow charging to 110%
Post by: NervEasy on March 05, 2023, 01:42:31 PM
Yes, at the moment the range an SoC are ok. Only slight recalculations 1 to 3 % up or down when keyed off. I’ll see in 2000 km what the result will be…