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What's the battery durability like with 5 minute flash charging? EV makers quote durability and charging speed, but gloss over the fact that it's typically "ei

by femto 2y ago

What's the battery durability like with 5 minute flash charging? EV makers quote durability and charging speed, but gloss over the fact that it's typically "either/or" because fast charging normally reduces the life of a battery (as can charging to 100%). Does the charging speed outweigh impact on battery life in this case? Current electric cars work well because you can fill them at home, reserving the need to fast charge to 100% for special occasions. If you have a home charger there's no need to stick to the same refueling regime as a petrol car, so there's limited advantage in being able to "treat the car like a petrol car". 5 minute charging is good, but put it in context until we have "perfect" batteries that have no significant limitations.

SideburnsOfDoom 2y ago
In general, 1) Concerns about EV Battery durability are overblown. https://spectrum.ieee.org/ev-battery-life https://spectrum.ieee.org/ev-battery-life 2) "very fast charging" should not be the default, it should be rare. It's there to answer the other concern: "But what if I want to road trip?". As you say, the default is overnight at home or during the day at office or a mall, with the software giving you that "topped up as specified, every morning", that's better than what an a ICE vehicle can provide. You can decide for yourself how valid these concerns really are, and to what extent EV critics like to inflate them beyond what's real. But nevertheless, they are being addressed.
FirmwareBurner 2y ago
Not everyone is a home owner where they can have chargers. Many people in Europe live in apartments and use street parking so charging points are sparse.
- numpad0 2y ago
  Some EVs like Tesla burns battery while parked, and external power is effectively a requirement for extended parking, or so I've heard.
  - lathiat 2y ago
    That’s only true with sentry mode on. Without sentry mode it uses very little.
dzhiurgis 2y ago
This. Most EV batteries can pull off similar rates for 5 minutes at the expense of battery longevity. There's a reason why makers put cap on. Without long term data or some technological explanation I feel that's marketing gimmick by BYD.

by femto 2y ago

SideburnsOfDoom 2y ago

In general, 1) Concerns about EV Battery durability are overblown. https://spectrum.ieee.org/ev-battery-life https://spectrum.ieee.org/ev-battery-life 2) "very fast charging" should not be the default, it should be rare. It's there to answer the other concern: "But what if I want to road trip?". As you say, the default is overnight at home or during the day at office or a mall, with the software giving you that "topped up as specified, every morning", that's better than what an a ICE vehicle can provide. You can decide for yourself how valid these concerns really are, and to what extent EV critics like to inflate them beyond what's real. But nevertheless, they are being addressed.

FirmwareBurner 2y ago

Not everyone is a home owner where they can have chargers. Many people in Europe live in apartments and use street parking so charging points are sparse.

numpad0 2y ago
Some EVs like Tesla burns battery while parked, and external power is effectively a requirement for extended parking, or so I've heard.
- lathiat 2y ago
  That’s only true with sentry mode on. Without sentry mode it uses very little.

dzhiurgis 2y ago

This. Most EV batteries can pull off similar rates for 5 minutes at the expense of battery longevity. There's a reason why makers put cap on. Without long term data or some technological explanation I feel that's marketing gimmick by BYD.