As long as you have a charger around you, just plug in the iPhone to charge it, drive it out, and connect the iPhone to the car to charge it. Go out with a backpack and a charging treasure, and charge at any time; The mobile phone is very smart, so don't worry about charging. If you recharge from 100% to 0% every time, the percentage of remaining power will drop rapidly, so try not to let the power drop below 75%, and 60% is the bottom line.
If it is really unfortunate that it is below 60%, then find a place to charge as soon as possible; You can put some wireless chargers at home, office and other places, and you can charge them when you put them down. Don't charge at high or low temperature, try to charge at room temperature.
The health status of the battery displayed by the iPhone is actually the ratio calculated by the resistance on the motherboard and the sensor, which actually only plays the role of "placebo". However, because the battery health does not show the expected continuous use time or more actual data, it is more likely to be panic caused by the unknown.
In fact, the results calculated by the sensor have great variables, and the temperature has great influence on the current. When testing the battery after it is officially sold, it is often necessary to use professional bypass diagnostic tools, HDI tools and battery test board for diagnosis, and also observe the actual packaging condition, cable arrangement, appearance structure and back gluing of the battery.
In addition, the temperature in many places in China is low, and the performance of batteries decreases at low temperature, which is determined by the chemical properties of all batteries. In this temperature environment, it is normal for the battery to charge slowly and have problems with its endurance.