-
👉 Slate Reservations Tracking List: Add Your Slate Reservation 📊
Don't Baby Your EV, Hard Acceleration Extends Battery Life
KevinRS
Well-Known Member
- First Name
- Kevin
- Joined
- Jul 4, 2025
- Threads
- 1
- Messages
- 403
- Reaction score
- 545
- Location
- California
- Vehicles
- Nissan Versa
It doesn't really say hard acceleration extends the life, it says real world driving does. Lab test slow charge and discharge is worse than the real world pulses that occur with real driving, stop and go traffic, etc. So many drivers are getting more lifetime miles out of batteries than expected.
AZFox
Well-Known Member
@KevinRS makes a good point. The article's title is misleading. They just charged and discharged batteries in a manner that more realistically represents the way EV batteries are actually charged and discharged.
Here are some snippets from the article in Nature Energy that the AutoBlog article is reporting about:
Dynamic discharge profiles
We designed four different types of discharge duty cycle to simulate different operating conditions (Fig. 1). These consisted of (1) baseline constant current cycling profiles (with or without rest periods), (2) periodic duty cycles (including regenerative braking portions), (3) synthetic discharge profiles generated from field data and (4) real discharge profiles from field data. To create the synthetic profiles, we used field driving data that encompassed both highway and urban driving41. [...]
Synthetic protocols
Synthetic discharge protocols were designed to emulate trips between a start and end location. We tested several different synthetic profiles that captured highway driving, urban driving and a combination of the two, based on driving data from two cities. Synthetic profile 1a contained a single highway trip from City 1 followed by a rest. Synthetic profile 1b contained four consecutive highway trips from City 1 followed by a longer rest. Profiles 2a and 2b contained characteristic urban driving trips from City 1 and City 2, respectively. Synthetic profile 2c contained a characteristic urban driving trip from the driving profiles of City 1 and City 2 combined. Finally, synthetic profile 3 captured mixed urban and highway driving obtained by concatenating profiles 2a, 2b, 2c and 1a. These synthetic profiles were generated from the real city driving data from City 1 and City 2 using an algorithm previously developed by Moy et al.67 (for details, see ref. 41).
Here are some snippets from the article in Nature Energy that the AutoBlog article is reporting about:
Dynamic discharge profiles
We designed four different types of discharge duty cycle to simulate different operating conditions (Fig. 1). These consisted of (1) baseline constant current cycling profiles (with or without rest periods), (2) periodic duty cycles (including regenerative braking portions), (3) synthetic discharge profiles generated from field data and (4) real discharge profiles from field data. To create the synthetic profiles, we used field driving data that encompassed both highway and urban driving41. [...]
Synthetic protocols
Synthetic discharge protocols were designed to emulate trips between a start and end location. We tested several different synthetic profiles that captured highway driving, urban driving and a combination of the two, based on driving data from two cities. Synthetic profile 1a contained a single highway trip from City 1 followed by a rest. Synthetic profile 1b contained four consecutive highway trips from City 1 followed by a longer rest. Profiles 2a and 2b contained characteristic urban driving trips from City 1 and City 2, respectively. Synthetic profile 2c contained a characteristic urban driving trip from the driving profiles of City 1 and City 2 combined. Finally, synthetic profile 3 captured mixed urban and highway driving obtained by concatenating profiles 2a, 2b, 2c and 1a. These synthetic profiles were generated from the real city driving data from City 1 and City 2 using an algorithm previously developed by Moy et al.67 (for details, see ref. 41).
