What is the Best Remaining Battery Level to Charge a New Energy Vehicle?
3 Answers
New energy vehicles are best charged when the remaining battery level is between 20% and 90%. Here are the relevant details: Follow the principle of shallow charging and shallow discharging: Pure electric vehicles use ternary lithium batteries, which have minimal memory effect. Unlike other battery types, they do not retain a charging memory, meaning the battery's state is not affected by how much it is charged. The power battery in new energy vehicles is designed for cycle usage, and frequent charging does not impact the battery. However, when the battery level is too low, it can lead to a discharge phenomenon. If the vehicle 'stalls' due to low battery, it can significantly shorten the power battery's lifespan. Therefore, whenever possible, do not wait until the battery is nearly depleted to charge; instead, charge frequently. Avoid driving with low battery: If an electric vehicle runs out of power, it not only risks stalling but can also cause severe damage to the power battery. There have even been cases where the power battery became irreparable after deep discharge.
I've been driving for many years, and the battery of an electric car is like an old friend to me—it needs to be taken good care of. Generally, when the battery level drops to around 20%, it's time to charge it. Don't wait until it's too low, like below 10%, as that's not good for the battery and can accelerate aging. I remember one winter when my car's battery was down to 5%, and I almost ran out of power on the road. Since then, I've made it a habit to set a reminder on my phone to find a charging station when it hits 25%. For daily commuting, I try to keep the battery between 20% and 80%, charging it two or three times a week. Occasionally, for long trips, I'll charge it up to 90%, but there's no need for a full charge in daily use. After following this routine for three years, my battery efficiency remains high, saving me a lot on maintenance costs each month. Developing good habits makes driving much more enjoyable.
I just bought an electric car and it feels quite novel. The salesperson told me not to let the battery drop below 20% before charging, suggesting to charge when it's between 30%-50% to extend the battery life. I tried it a few times and found it very convenient to charge for half an hour at the community charging station when the battery is at 40%, without disrupting my schedule. Discussing with friends, they said to avoid deep discharge, like checking for charging points at the destination before a trip to prevent anxiety over low battery. Now, I use a mobile app to monitor and set reminders for charging, making life much easier. Through experimentation, charging at around 30% feels the most reassuring, and stopping at 80% after a full charge is also fine.
