Step on it - hard acceleration is good for your battery health

[bthanos]

https://insideevs.com/news/764150/ev-battery-flooring-it-good/

So get out there and enjoy your instant torque (safely). EVs depreciate too quickly not to get some more smiles per kilowatt-hour, and just know that the occasional spirited driving isn't going to cause your battery health to plummet.

Sponsored

 

[mr.Magoo]

I tend to treat my battery with outmost care at least once every time I'm out driving.

 

[Yellow Buddy]

Me: [Comes home with a new table saw, air compressor, and welder]

Wife: What are you doing?

Me: It’s for when we have a power outage, I need to pulse the battery on the truck so it doesn’t go bad.

 

[Highpi]

It cleans out all the gunk from the carburetor.

 

[MountainAlive]

I feel the need. The need for preventative maintenance.

 

[broncoaz]

There is zero chance that lack of full throttle on a regular basis will be the downfall of my batteries. My tires on the other hand…

 

[MidAtlanticLightningClub]

https://insideevs.com/news/764150/ev-battery-flooring-it-good/

So get out there and enjoy your instant torque (safely). EVs depreciate too quickly not to get some more smiles per kilowatt-hour, and just know that the occasional spirited driving isn't going to cause your battery health to plummet.

My battery must be very healthy!

 

[Lightning Rod]

My battery must be very healthy!

Yes... mine too!!!

 

[trev5150]

Oh I give it the beans ? every chance I get

Especially when I’ve been blocked in by abuelita going 15 mph under the limit and I’m trying to get to work.

 

[Storm Breaker]

im happy to hear that we are all in agreeance that it is a non issue with us. lol. as the kids say. yolo

 

[keith.springer]

My battery shall be IMMORTAL!!!!!

 

[MaintGrl]

Eh, Mine might not make it too long, I'm typically @ or below 70mph, and rarely am driving in an area that I can "light em up". Mostly around town, would hate for things to go sideways, literally and figuratively....

 

[chl]

Details matter.

The title is sensational "Science Says Hard Acceleration Might Be Good For Your EV Battery" but the truth is not really that simple.

This study is consistent with other recent studies that have shown longer life spans in real life usage (EV driven by EV owners) vs typical EV battery bench testing - bench testing will repeated cycle a battery at a constant rate until an end of life level is reached.

So what this is confirming is that bench testing in the past has NOT been simulating real EV driving which does involve a variety of discharge currents and amounts, and the bench testing needs to be rejiggered to use "dynamic discharging."

From the article:

"...This might sound like it's a great idea to go flooring your car all over the place, but that's also not exactly true. Like most things in life, good comes in moderation. And your battery? Well, variety (or, rather, dynamic discharging) is the spice of life.... Ultimately, the findings found that battery health responds well to low-frequency pulses and higher peak currents rather than a sustained draw. The study refers to this as low-frequency pulses, which can be thought of as mild bursts of power, like being in stop-and-go traffic or short stints of acceleration. [they cosidered] End of Life (EOL) at 85% SOH...

The study found that after a battery experiences the majority of its age-related degradation (which happens early on in the battery's lifecycle), its main degradation factor is a combination of loss due to two main factors:

• First, positive electrodes become more unstable at higher voltages, meaning that a higher resting State of Charge (SOC) can degrade the positive electrode of a battery quickly.
• Second, negative electrode capacity loss is impacted by the Depth of Discharge (DoD), meaning that if a battery operates at a very low SOC, it can also degrade more quickly. This is why most folks recommend keeping an EV battery as close to 50% as possible for day-to-day driving.

However, it also found that prolonged draw at a constant current (like sustained highway driving on long, flat roads at a constant speed) could result in an accelerated capacity degradation. Meanwhile, mixed driving that simulated urban environments where speed and load varied showed less overall degradation before the battery reached EOL. ... What's more interesting is that as the current increased, the battery was able to reach a higher number of EFCs [equivalent full cycles (0-100%)]...

While this might make you want to get out and start flooring your EV at every traffic light in the name of battery health, that's not what you should be taking away from this study ... the key to battery longevity is variety. Keeping your battery at a healthy level and realizing that driving in rush hour traffic might be frustrating, but it's actually great for your battery's overall health. ..."

 

[bthanos]

Just get on the highway on ramp and punch it till you are at the limit. That should do it .

 

[Jackdforme]

It's like cardio for the truck. Not so dissimilar to revving a small block to keep it clean.

Sponsored