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[beatmaster]

I just bought a 2021 ego+ RS - battery warranty will end in 4 weeks.
How can I check SOH?
Are there recommended tests, e. g. DC charging, AC 100% charging with balancing, ...?

[MVetter]

Charge the bike to full and do a balance cycle. Then ride the bike down and empty it all the way to 0%. Then, using a measuring device like a Kill-A-Watt meter, do a full charge again. Record how much power it used and report back.

[Specter]

Correct me if I am wrong but, I think Energica just extended the warranty on some of their older models battery, so you might still have a year or so warranty left on it.  But still, this is a good check to make to get an idea how it's holding up.
Also, how many miles is on it?  Typically though you'd have to put about 120k miles or more on one to really start wearing the battery hard if it has been taken care of.

Aaron

[beatmaster]

@Aaron: Mileage is <5000 km 
Early Energica models had issues with battery defects, so it would be helpful to identify upcoming problems within warranty and contact manufacturer in time...
Achim

[Stonewolf]

If you're concerned about that you can do the above procedure to check your battery retains roughly the same capacity in its usable portion. If it's any solace my Ribelle is a '21 (EMCE model) and I've not noticed any capacity drop after 34k km.

[Pard]

https://www.electricmotorcycleforum.com/boards/index.php?topic=12766.msg121509#msg121509

[beatmaster]

Due to some broken parts, I can't ride the bike. I just charged to 80% SOC.
I now tried an AC full charge, this stopped at 98% and balanced for hours.
Within an hour or so, SOC decreased to 96%.
Unplugging and plugging AC started balancing again for some minutes, then stopped again at 96% - no charge to 100%.

Do I have a battery issue?

[MVetter]

Keep letting it balance. It may need another day or so of the BMS doing its thing.

[beatmaster]

Balancing starts when connecting to AC power, but stops after several minutes at 96% SOC.
So I have to do this again at a lower SOC?

[PWM]

Do I have a battery issue?

No, you do not have a battery issue.

After a full charge, you have to get back into a discharge state to best serve ALL cells, so ride bike and burn-off 5-10% for cells to start their balance session from a normal charging transition where only a few low capacity cells have thier high-side cut-off activated versus a majority of the pack having to self-discharge...that's why it seems nothing has happened...

Repeat steps, betcha after the third iteration it will read 99-100%.

[jotjotde]

If memory serves me well, the SOH is checked by the bike. My dealer showed me a printout with data when I had my bike there for maintenance at 15000 and 30000 km.
I think the bike records each charging and calcuates.

Here in Germany a company is trying to establish themself as something like a certifying body for used EV batteries. It's name is Aviloo Battery Diagnostics. They measure the charge performance and deduct from that the SOH.