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[DonTom]

Don, I think PWM is talking about the + models without the additional cooling channel through the battery...

Is the battery cooling done differently on the SS9+ ?   I assumed it would be the same as my SS9- .

-Don-  Reno, NV

[MVetter]

Is the battery cooling done differently on the SS9+ ?

Very much so. That's part of how they added more batteries and dropped 40 lbs on the bikes.

[DonTom]

Very much so. That's part of how they added more batteries and dropped 40 lbs on the bikes.

Which cooling works best between the "+" and the "-" models?

I have had many yellows on my 2020 SS9-. Usually right after  after a CCS charge and perhaps for another half hour or so  of riding depending on where. But I have ridden on many days this summer that were above 100° F.

-Don-  Auburn, CA

[MVetter]

Cooling works better on the 13.4kWh packs. Go ahead and look at yours from the front of the bike. See how the battery case has a series of open holes down the middle? Those are cooling channels. They direct air around the smaller internal sealed packs. This allows your battery to actively cool while you ride. Works very nice.

[DonTom]

Cooling works better on the 13.4kWh packs. Go ahead and look at yours from the front of the bike. See how the battery case has a series of open holes down the middle? Those are cooling channels. They direct air around the smaller internal sealed packs. This allows your battery to actively cool while you ride. Works very nice.

OIC.   I didn't realize the + models didn't have such. But even my yellow has been on for quite a while when riding, but it is always right after a CCS fast charge. Too bad there wasn't a way to keep the battery cooler while fast charging.

-Don-  Auburn, CA

[MVetter]

Turn down the charge rate.

[DonTom]

Turn down the charge rate.

Is that what you have been doing?

That will be a good way to deal with it, especially when they stop charging for the time it takes to charge which is more expensive than the KWs used to charge up  a motorcycle.

On a hot day, how much should I turn down the charge rate to stay in the green?

-Don- Auburn, CA

[MVetter]

On a hot day you straight-up may not be able to stay in the green. Case in point: I recently rode from LA to Monterey Bay. When I left LA it was 107F, and this put my battery in the yellow just from highway riding. At my first charge stop my rate was throttled down to 14-15kW. It took until the ambient air cooled down to around 80F before I saw green battery again. You have to remember that the delta for battery temperature being hot or cold is INCREDIBLY narrow.

Think how hot a gas bike's pistons get. Like 600F or higher. Even if it's 107 outside you've still got 500 degrees of cooling to work with. Batteries, on the other hand, explode at around 175F. As a precaution, most manufacturers disengage them at around 130. If your batteries are in the mid 120s and it's 107 out you have a paltry 13 degrees in which to cool them. Even if they were fully exposed to the air with fans on them they're going to be in the yellow because that temperature within that window.

[PWM]

Good info - I agree on first generation design is better at cooling but can't speak from experience.

A battery sock with electronically metered water drip for extreme temperature riding - one measure.  Water mist is the other method and easier to implement both options need a water bottle no bigger than a thermos and arduino and tiny pump.  The on time would be short and quick under high pressure for the favored water mist approach - the off time gives a tiny pump time to spin up the pressure and it shuts down under pressure.

Everything I've seen about the (+) series is they are well sealed to tolerate water exposure particularly the front face where short front fender on a rainy ride presents much more random splash versus the controlled amount that makes a difference on a hot dry day - the 40C yellow trip point is nothing to get ones panties in a wad either - just sustained yellow is not healthy and yeah, happens after CCS which makes sense even w/ the factory throttling at play...

[DonTom]

On a hot day you straight-up may not be able to stay in the green. Case in point: I recently rode from LA to Monterey Bay. When I left LA it was 107F, and this put my battery in the yellow just from highway riding. At my first charge stop my rate was throttled down to 14-15kW. It took until the ambient air cooled down to around 80F before I saw green battery again. You have to remember that the delta for battery temperature being hot or cold is INCREDIBLY narrow.

Think how hot a gas bike's pistons get. Like 600F or higher. Even if it's 107 outside you've still got 500 degrees of cooling to work with. Batteries, on the other hand, explode at around 175F. As a precaution, most manufacturers disengage them at around 130. If your batteries are in the mid 120s and it's 107 out you have a paltry 13 degrees in which to cool them. Even if they were fully exposed to the air with fans on them they're going to be in the yellow because that temperature within that window.

Ever got into the red zone? How likely is it to get into the red on a hot day? IIRC, that puts the bike in a limp mode, doesn't it?

-Don-  Auburn, CA

[PWM]

I can see my Ribelle morphing into a mad-max road-warrior sorta thing...this should work...

https://www.amazon.com/Seaflo-100PSI-Self-priming-Diaphragm-Pump/dp/B0166UBJX4/ref=sr_1_20?dchild=1&keywords=High+Pressure+Low+Flow+Water+Pump&qid=1600999583&sr=8-20

[MVetter]

Ever got into the red zone? How likely is it to get into the red on a hot day? IIRC, that puts the bike in a limp mode, doesn't it?

-Don-  Auburn, CA

I have never gone into red, no. That's a combination of aggressive riding and fast charging, and even my highway riding doesn't do that. Brandon, on the other hand...

[ultrarnr]

This past Saturday my Ribelle was at my dealer for several hours so the battery would have been completely cooled down from the trip there. Temps were around 70 degrees. There was a CCS charger four miles from the dealer so the battery would not have been warmed up by the time I got there. Battery was at 21% SOC. It started to taper at 37% SOC which is an indicator the battery is in the yellow. The battery icon stayed yellow for the 64 mile trip home and for over half an hour after that and possibly longer. This is similar to a week ago when I CCS charged after getting the 600 mile service done.

For comparison: In July 2018 I rode my Eva 107 on the Blue Ridge Parkway in North Carolina. I rode 414 miles that day and CCS charged 6 times and never got the battery into yellow. I don't remember the temps but most likely in the 80's maybe close to 90.

Bottom line here is at 70 degrees and a cool battery the Ribelle battery quickly gets hot while CCS charging. Right now summertime charging when temps are in the 90s or hotter are going to be extremely slow unless Energica gets something figured out. I think it is going to be interesting with winter coming and much colder temps on the way to see just how cold does it have to get in order to CCS charge a Ribelle without the battery going into yellow. My guess is it has to be in the 40 degree range, maybe colder.

[reini]

I think it is going to be interesting with winter coming and much colder temps on the way to see just how cold does it have to get in order to CCS charge a Ribelle without the battery going into yellow. My guess is it has to be in the 40 degree range, maybe colder.

Yesterday I rode with ambient temperature between 8 and 14°C (46 to 57F) around 90km before charging from 25 to 60 percent in 15 Minutes at the full 24kW. I started from a 20C warm garage and rode quite quickly to and from the charger. Never saw any yellow battery.

I think those batteries are hard to cool down by just standing around. Was your battery yellow before you arrived at the dealer? How long is "several hours"?

EDIT: I'm so glad that I ordered the heated grips

[ultrarnr]

reini, The battery icon was green when I got to my dealer and was there for 4 hours or so. Agree, they are hard to cool down by just standing around. Also hard to cool down when going 70+ mph on 4-lane roads. Of the 64 miles home about 48 miles was at 70-75 mph.