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Author Topic: SOLVED: Can't charge at full speed  (Read 12764 times)

domingo3

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SOLVED: Can't charge at full speed
« on: January 17, 2025, 07:37:40 AM »

Weird behavior. Any ideas what could cause this?

https://youtube.com/shorts/yJIFgOrqJmM?feature=shared

Video is a bit blurry, but if it's set to 15A, it only goes up to 9A.  Then I show that if I set the current lower, it will follow. If I slowly set it higher, it will go up for a few seconds and then drop back down to 9A.
 Any ideas would be appreciated. It's my daily driver and I'm really hoping not to have to leave it at the dealership for days or weeks to diagnose.
« Last Edit: February 21, 2025, 08:41:46 AM by domingo3 »
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Specter

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Re: Can't charge at full speed
« Reply #1 on: January 17, 2025, 08:06:33 AM »

I couldn't see too much but.  A few wag's.

What is the temperature outside, were you running it hard then threw it right on the charger?
what was the battery percentage?  It looked like you were at 2 percent, that's an ouch right there !
If it was that low, sometimes they start out mild to bring the charge up a bit then it may pick up the amps a bit.
What was the voltage you were charging at?  Sometimes, for reasons I have not really investigated, probably should but, if your voltage is low, like you are on a shitty circuit, or it's really loaded down, Ive seen it curtail the charge rate a bit.

If the batteries are cold it can curtail it.
If the batteries are hot it can curtail it.
If you are near the top of being charged it will curtail it.
If it is very discharged, and the batteries are really unbalanced it may curtail it a bit as it tries to even them out before pouring the power to them.

This is an AC charge correct?

Let them charge for a few minutes, unplug turn bike off, then back on and then plug back in and see if it changes.

Without being there to actually see what is going on, I can't give you solid answers but these are a few things that can doink a charge.

Aaron
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domingo3

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Re: Can't charge at full speed
« Reply #2 on: January 17, 2025, 10:32:05 AM »

Hi Aaron,

Not that cold. Temperature was about 50F.

The battery percentage was 30%.

Charging is on 220-240V. I didn't directly measure it, but it's around there. This happens at home and at commercial charging stations. It's also a sudden change - it used to charge normally and then one day it would only charge at 7-9 amps.

It stays at this lower rate throughout the charge, whether I interrupt or not, charge right after riding or wait, etc.  I know it slows down above 90%, but the rest of the charge is limited to 7-9 amps. It's been like this for a few weeks.

Thank you,

Brian
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Pard

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Re: Can't charge at full speed
« Reply #3 on: January 17, 2025, 10:50:38 AM »

Weird behavior. Any ideas what could cause this?

https://youtube.com/shorts/yJIFgOrqJmM?feature=shared

Video is a bit blurry, but if it's set to 15A, it only goes up to 9A.  Then I show that if I set the current lower, it will follow. If I slowly set it higher, it will go up for a few seconds and then drop back down to 9A.
 Any ideas would be appreciated. It's my daily driver and I'm really hoping not to have to leave it at the dealership for days or weeks to diagnose.

Does the battery balance up to 100% after a full A/C  charge?

Open the engineering screen and take a look at the cell balance.

Wondering if the BMS is throttling down the charge rate due to cell imbalance.
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jotjotde

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Re: Can't charge at full speed
« Reply #4 on: January 17, 2025, 12:09:14 PM »

I wonder if the reason for this might be on the supply side.

From your video it looks that you are charging in a car park, maybe the outlets are somehow restricted to 9A?
9-10A (2kW) is the safe limit for prolonged power draw according to my electrician buddy. According to him, the bottleneck is usually the socket which can overheat at higher current.
That's why run-of-the-mill household appliances (hair dryer, electric heaters etc.) have approx. 2kW maximum.

Trying to charge somewhere else could answer that.
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domingo3

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Re: Can't charge at full speed
« Reply #5 on: January 17, 2025, 05:29:48 PM »

I can't get to the engineering screen. I've tried the RRR LLL RRR LRL. Is it something different for older firmware versions?  I have FW EN. A. 002616.037

I used to be able to charge normally at home and at work. I still see cars charging at that station at 7kw. I've tried other stations, too. It's definitely the bike.
« Last Edit: January 17, 2025, 09:35:48 PM by domingo3 »
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Pard

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Re: Can't charge at full speed
« Reply #6 on: January 17, 2025, 06:58:28 PM »

Remember to press the mode button in after the sequence of rights and lefts.  It will work.
« Last Edit: January 17, 2025, 07:00:31 PM by Pard »
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Pard

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Re: Can't charge at full speed
« Reply #7 on: January 17, 2025, 07:00:18 PM »

Follow exactly

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Specter

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Re: Can't charge at full speed
« Reply #8 on: January 17, 2025, 07:53:06 PM »

You may have to press an additional screen   if it is not directly showing you may see the word diagnostics or something like that  press that and it might be in there.  I have to do that on my ego it has an extra screen to get to it.  then again its not regular software on it but see if that may help.

Go into your bikes settings, i think there is a max charge rate or something worded like that, make sure it's set to 100 percent.  If that gets changed somehow even though you may tell it on the screen to go to 15 if it's told only goto 50 percent or so, it won't go all the way up.

On the very top, does it say charging or balancing?  I know mine sometimes will start balancing down in the 80s, but still be pulling the full 15 amp.  If it says balancing then it's the bike taking it down to level out the cells.

when you do charge it up, do you charge it all the way or stop at like 95 percent or so?   when is the last time it went to 100 percent and stopped on it's own.

aaron
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domingo3

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domingo3

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Re: Can't charge at full speed
« Reply #10 on: January 17, 2025, 09:11:56 PM »

Follow exactly

I checked all the screens and didn't see it.

Charge limit is set to OFF, which is 100%

I charge it to 100% five days a week. It says "charging" until it gets to 90% and then the screen changes to say something about recommending continuing to charge up to 100%. Everything about how I charge and how it responds is the same as it's been since I got the bike a year and a half ago except that it suddenly started charging more slowly about a month ago.

https://youtube.com/shorts/iXHEcM06vqM?feature=shared
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domingo3

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Re: Can't charge at full speed
« Reply #11 on: February 07, 2025, 10:54:33 PM »

I finally got into the engineering screens. Of the parts I understand, I don't see anything unusual. Anyone else?

https://flic.kr/p/2qKrqHx

https://flic.kr/p/2qKrugD
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Pard

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Re: Can't charge at full speed
« Reply #12 on: February 07, 2025, 11:15:52 PM »

Looks normal.  Balance is good.  No clues here as to why your charge rate has dropped.
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Pard

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Re: Can't charge at full speed
« Reply #13 on: February 07, 2025, 11:19:23 PM »

Reach out to Chris Paz at Energica USA.  He is the man to ask.  Chris also frequents this forum, so perhaps you can PM him to reach him.

https://www.electricmotorcycleforum.com/boards/index.php?action=profile;u=8405
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FlyMig

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Re: Can't charge at full speed
« Reply #14 on: February 07, 2025, 11:35:21 PM »

You have that check engine light on, what is the bike telling you in the diagnostics?  Is your onboard charger ok?
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