True, many hybrid vehicles use smaller packs and it's nice (cost-wise) to have an air cooled pack inside the cabin. Batteries are comfortable in similar conditions as people, temperature wise. But they're designed have the air circulated through them. They could get condensation (some spring days where the vehicle & battery is cold from the previous time in the cold garage, and the outside air is now warm and moist), but it would not be on the terminals, wiring, controller, etc, it would be on the cooling channels and would shortly be removed by dehumidified cabin air. Some are high voltage like ~100V or less, but not usually 400V DC.
It's so tight in there, it would require ducting to circulate it evenly, a little power to run the fan (maybe 40-100 watts based on what a squirrel cage blower on my woodstove can use), for benefit just some times. The bigger thermal mass of the batteries, and the better cells. I respect Nissan for keeping it simple, and not giving in to the 98th or whatever percentile use cases. The little 24kWhr battery with no cooling works great 95% of the time. Now I feel a little guilty dragging this heavy sled around, just to have enough range for some longer trips.
Kia does the same thing. There is quite the difference between ambient air and forced air circulation. Even modest positive pressure is good. Granted Kia has a fan to help but its still cabin air. TBH; It would be the most helpful in Summer as many EVs do not have the cold weather fits that plagues TMS. Its heat and you would be pushing conditioned air thru the pack which is naturally lower in humidity anyway.Oilpan4 wrote: ↑Mon Jan 13, 2020 2:41 pmHyundai appears to be circulating cabin air through their hybrid battery.
That's the thing with water. You think something is sealed up well enough to keep water out, but only sealed up enough to not let it back out.
Today relative humidity is 14%. That's normal for winter.
No room. It was already a challenge getting the 62 kwh pack to fit (this is why they were released late.) So adding more stuff w/o a complete redesign would not have happened. I am guessing they "could" have done it to the 40 kwh pack with the advanced cell design but felt that is was a different driving segment and I agree on that point.
Ssshht, I've been doing this since last sunday and it's not going quite as planned yet, but don't blow my cover, I want to make a big video where it seems like everything just worked first try!Rodriguez wrote: ↑Mon Jan 13, 2020 3:08 pmI tried to search this thread, but apparently the words ''charging'' and ''charge'' are too common and the forum doesn't want to return a result.
I was just pondering, if we'd assume that the DC inlet, cabling etc is up to spec to receive more power than 50kW would it be possible to trick/hack the car to getting a higher charge rate if the charger can supply it? With a 50+ kWh pack the battery doesn't get stressed that much as it used to.
You can't just put in a fan into the battery. Physics won't work.... Heat moves from hot to cold... To cool, you don't ADD cold, you take away heat and send it somewhere.DaveinOlyWA wrote: ↑Tue Jan 14, 2020 7:24 amNo room. It was already a challenge getting the 62 kwh pack to fit (this is why they were released late.) So adding more stuff w/o a complete redesign would not have happened. I am guessing they "could" have done it to the 40 kwh pack with the advanced cell design but felt that is was a different driving segment and I agree on that point.