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[Crissa]

I can't imagine leaving it half the year, but there are alot of little trips to eat up the top 20% on even my S

-Crissa

[2014ZeroSR]

To all, Thanks for the input.

MVetter  - Lots of valid points - Maintain between 80/20, Monthly to 100% for balancing, Sounds good. Thanks.

After reviewing the manual, I was curious, I decided to attain 0%.
Went for a ride, returned with about 7%, then drove back and forth somewhat slowly (~ 15-20 mph) on the road in front of the house.
At 5%, sure enough, the warning appeared - "Activating Limp Mode, Low Battery SOC ...."
I deactivated the warning.
Shortly after achieving 3%, 1 mile remaining, the SOC immediately dropped to 0%.
Top speed was now 22 mph.
Now parked, charging overnight at 120vac / 6 amps.
Tomorrow, perform a range test.

[MVetter]

The more aggressively you ride the earlier Limp mode will appear. I've done a lot of highway miles and seen it come up as high as 15%. Again though. I am the worst human example. No one should ride like I do.

[dryhte]

The more aggressively you ride the earlier Limp mode will appear. I've done a lot of highway miles and seen it come up as high as 15%. Again though. I am the worst human example. No one should ride like I do.

I had Limp mode appear at 18%. Now this was at 10°C at highway speeds, on a day where I hadn't recharged/balanced overnight, and after CCS charging from 20-80 multiple times the previous day.

Wasn't riding aggressively though. Just 120ish (km/h)

[Sklith]

I'm just leaving my Ego plugged in with it set to "LPR" mode.

[enaef]

I dare to re-ask the question I asked earlier in this thread but has not been answered as far as I can see:

May I ask about a specific point:
For recalibration / reballancing the battery he [lex summer in his youtube video 'BMS calibration'] recommends to deplete the battery completely. Then to turn off the bike, turn on again and deplete it once more. The same procedure for two to three times, until the bike does not move anymore.
After that IMMEDIATE charging of the battery with slow AC up to 100%.

Is this save?
Does it really help?
Does it work for other batteries than the Energicas?

[Crissa]

Is this save?  Is what what?

Is it safe to ride your bike?

-Crissa

[enaef]

Crissa, out of your reply now I'm not sure if
a) my question is not clear or
b) if I asked a stupid question

In case of a)
Is the battery not in danger of damage if one follows this procedure?

[Fran K]

I dare to re-ask the question I asked earlier in this thread but has not been answered as far as I can see:

May I ask about a specific point:
For recalibration / reballancing the battery he [lex summer in his youtube video 'BMS calibration'] recommends to deplete the battery completely. Then to turn off the bike, turn on again and deplete it once more. The same procedure for two to three times, until the bike does not move anymore.
After that IMMEDIATE charging of the battery with slow AC up to 100%.

Is this save?
Does it really help?
Does it work for other batteries than the Energicas?

The KTM manual printed text are sort of similar.

How one would deplete the battery with a street bike near the charging spot (multiple times) would seem problematic.  I have area uphill from my charging point and coast once it goes no more.

The battery really should only depete to the point the battery management allows it to so this may not be really helpful unless mentioned in the owners literature.

The part "does it really help" is what I am curious about.  I read that parts inside these kind of batteries change in length as the charge cycles from full to empty or empty to full.

[Crissa]

How about c) your question is unclear via typo or d) your question is difficult to answer for lack of further specific context.

I think it means 'Drive around the parking lot until it runs out'.

...Although I don't know what they're expecting this to do; it's not a 90s era lithium with crystalline memory problems (like early cell phones) or a battery management system which should attempt to map amperage to voltage like Apple devices do as it doesn't have control over most of the power draw.

-Crissa

[Sklith]

Yeah, I'm not doing that drain until it's dead thing. No way. Even if my neighbors are cool with me driving up and down our road constantly, I'm not going to push a 650 lb bike up my drive way to plug it in! Lowest I got mine down before charging it up is 3%.

[DonTom]

Yeah, I'm not doing that drain until it's dead thing. No way. Even if my neighbors are cool with me driving up and down our road constantly, I'm not going to push a 650 lb bike up my drive way to plug it in! Lowest I got mine down before charging it up is 3%.

When you're down to 0 SOC, you should have at least a few miles left.

IIRC, the book says it should be done once in a while, perhaps was just to calibrate the SOC. But I have not done it yet either. 

I start to get range anxiety when I am not much below 50%!

-Don-   Reno, NV

[Sklith]

Just watched this vid from Lex Summer, this guy's nuts (in a good way)!


I'd be freaking out if my bike shut itself down. Glad to see it can come back to life, and get you home if you're close.

[Crissa]

Lex is hilarious.

Heh, I had my Zero die at 10% going up a 10% grade about a quarter mile from my house (almost all of it up hill).

-Crissa

[DonTom]

Lex is hilarious.

Heh, I had my Zero die at 10% going up a 10% grade about a quarter mile from my house (almost all of it up hill).

-Crissa

Zeros don't count in this section.

FWIW, I finally drained my Energica down to limp mode just because the manual says it should be done once in a while.

When I got back to my Auburn house, after a long ride a couple of days ago, I only had a few % SOC left. So I rode it around that area until I got down to limp mode, which was at 1% (not 0% as it says in the manual). I didn't have the guts to find out if it would really go down to 0 SOC, I rode it perhaps another mile and then slow recharged back to full, using 120 VAC, with my portable fan, since the bike's fan was not then yet replaced.

-Don- Reno, NV