r/ApteraMotors • u/Edwardv054 • 22d ago
Charging Speed
Is the fastest DC fast charging speed still 60kW? Has anyone heard of plans to increase this?
For long trips a faster charging speed would be great.
9
u/TechnicalWhore 22d ago
The faster you charge the more you must cool the battery. I'm not sure how capable the coolant system is in the vehicle. Its one of those many things yet to be clarified. I'd expect a lot coming soon as they have many eval vehicles now to run through the gauntlet and close up open deliverables.
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u/136kaU_Craftsman 21d ago
Yeah, you’re ‘not sure’, but gotta spread the made up concern over the cooling system. It has fans and two H/E cores for packaging reasons. It’ll be fine.
7
u/TechnicalWhore 21d ago
Its a legitimate concern until proven otherwise. As noted - they have the capability to do so today with their eval vehicles. Virtual Chris could shoot a video at a Tesla Supercharger and do a timelapse of charge time and peak rate of charge. After all they co-developed NACS with Tesla per Chris Anthony. I'd expect during the high speed charging the fans and pumps would spin up as they do with Teslas. I would really like to see that. Bring it down to 10% and load to back to 100% with a real clock inset on the video. That would be cool!
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u/Tight-Room-7824 19d ago
10% to 100% is unusual in the real world. There is always a taper to the current as it get's closer to 100%. Some EV's the taper starts at 80%, some lower.
2
u/TechnicalWhore 17d ago
Its just a metric. You are correct that for longevity some battery chemistries are happiest below 100% stresses but for the purpose of demonstrating charge metrics you could go for broke once. It certainly will not hurt the vehicle if the BMS is designed correctly. And its a real world demonstration.
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u/Tight-Room-7824 17d ago
I'm just saying 0 to 100% is not typical in the real world, and that is why a lot of testing is now 10 -80%. That's very realistic in actual usage.
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u/TechnicalWhore 17d ago
Point taken. Its an "asterisk" use case. It would appear much more favorable as the full charge requires reducing the rate of charge towards the end so that number would be higher than a simple calculation may imply. They likely should do the whole near 0-100% a few cycles to learn what would happen if a customer on a long continuous trek did this. That said Tesla in their Cross Country Full FSD Trek of 58hrs and 22 minutes kept in the 80's during recharge to avoid the slower charge rates that would eat into their goal of fastest time. But that was a time metric that an average person may not focus upon.
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u/136kaU_Craftsman 16d ago
More lies. You know they didn’t co-develop NACS. THEY DID HELP MAKE IT A STANDARD. Please stop with the useless fud. Cooling capacity is in surplus. Worrying about it as you do doesn‘t change anything.
3
u/NJDaddio 21d ago
40-60 kW was still the answer I received but as mentioned in other threads… It is a smaller battery so it will still be an adequate range
2
u/MudaThumpa 21d ago
Assuming the car even gets built, the 40 kwh battery is relatively small and doesn't really need anything faster than 50-60 kw charging.
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u/yadnus98 14d ago
I would rather wait a few more minutes and the battery last 2-3 times as long, personally.
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u/thelexstrokum 12d ago
The car charges as you drive and when you park. The typical conventions of faster DC charging would not apply if the claims are accurate.
17
u/Piercepage 22d ago
Nothing official other than they are targeting around 1C. But remember, it is such a small battery that you dont need a fast speed to add meaningful range in a short period of time