• Facebook
  • Instagram
  • Black Twitter Icon
  • YouTube

© 2019 by Aptera Motors Corp.

Sep 25

Batteries ( lithium-ion) Regarding temperature = to performance and life


Edited: Sep 25

EV batteries are impacted by extreme hot and cold temperatures, which can effect their  performance and  life.Where a warm/hot battery battery could hold a charge longer but could impact life.Whereas a cold battery would not hold a charge as long.

 I understand, during  charging there is heat gain. More with fast charging.

What is the ideal temperature for (Aperta’s) lithium-ion batteries 40-100 kWH  packs ? 1) while in a garage/charging 2) operating temperature


Could routine normal charging vs rapid charging be optimal for battery life?

I imagine charging frequency and use power(%drain) might factor in too...

🤔I understand there was a 2015 “lizard” battery, which are more heat tolerant. Any experience on that technology? If any advantage...could certain lithium-ion batteries types be considered / offered for different climatic zones? Living in the SW... impact from heat would be my immediate question, but I also do cross country travel in the winter months. I don’t own an EV vehicle so I am not sure what manufacturers out there are recommending and what people are actually realizing.

My family has 3 EVs at the moment, and we had 2 others previously. My extended family has had a total of 12 EVs since 2012. We have had 4 Leafs, 2 i MiEVs, 2 e-Golfs, 2 Bolt EVs, 1 i3 REx, and 1 Smart EQ.


Most / all of them had heating in the pack - it is a must for cold winters - we live in New England. And a few have active cooling, and the Chevy Bolt EV has liquid cooling. Cars go through extensive testing, and that includes temperature extremes.

Sep 27

Wow! Lots of “electrified experience there”.

Given that line up of various commercialized EV cars.. we know who to query especially, with New England seasonal temperatures/conditions.

Even though my family member’s Volt and i3 REx experience is also from the east coast, for selfish reasons... I may ask questions meaningful to my present SW heat. Although our 4200’ mountain elevation location offers a nice micro-climate.... I have a need to explore the many environments throughout the US.


Sep 30

Hi Neil

I am not sure if any of your family of EV cars have similar electric motors to each wheel... like the new Aptera but, do you think the the new Aptera AWD will be quieter than the 2e which had a motor under the hood/FWD ?

@Len The most common source of noise in EVs is the reduction gears, so the new Aptera won't have that.

Oct 1

Thank you. Nice to hear

New Posts
  • I own a velomobile, which is a three-wheels recumbent tricycle with a hard shell. It is a tadpole configuration with two wheels in front and one at the rear. I had it for over six years and always have a concern regarding rear tire blowout. It never happens to me but many people owning a velomobile have scary experience with rear tire blowout. It loses lateral stability once rear tire loses traction. The Aptera has a similar configuration. I wonder your design team looks into the rear tire blowout sceneraio or not.
  • I am curious if this AWD three-wheel (w/ electric motor in each wheel) vehicle with low resistant tires, which only has a curb weight of ~1800, with an impressive acceleration for 0-60 mph(!)... will wear tires quickly? (The old Aptera 2e had P165/65R14 tires (brand?) .. but not sure what is planned for the new Aptera) I am not sure we have a forum members with a light three vehicle (same tadpole configuration design), AWD (?) , low roll resistant tire experience...to share their tire wear experiences. We know...  Driving Patterns  – Certain driving maneuvers also quickly wear your tires down. Some of these maneuvers include: Spinning your tires Hard braking Gast acceleration Driving at fast speeds So if you do a lot of city driving, avoid slamming on the accelerator or the brakes as you make your way through town. If you do, you’ll be buying a new set of tires before you know it. I digress....Not a good comparison...but this memory brought  up the subject.... I remember my wife’s past Mercedes Benz sports coupe going through tires frequently. I kept up on the tires’ air pressure, alignment and rotation. That car hugged the road, with the sport suspension.  * “Little Old Lady from Pasadena”?😁. Well she put on the miles with only MB performed regular maintenance.Her daily commute was interstate diving at 65 mph and I am sure she ever exceeded that speed😇.I had summer tires and winter snow tires for the vehicle and tried different high end tires but it seemed I replaced them more frequently. This was a much different animal, compared to the Aptera. Four wheels,  a RWD vehicle . Automatic.  (3400 #)   * “Put an “Aptera” in your garage Hon-ey!”
  • Is the rear view mirror a mirror, camera display (like the chevy bolt) or both? Cant see side mirrors on any of the images. Are those cameras too? The little side displays inside seem to imply it.