Low temperatures can reduce the activity of e-bike batteries.
With the sudden drop in temperature in the past two days, many owners have found that their electric bicycles have also experienced a rapid "power loss".The Yangtze Evening News reporter interviewed Wu Shiping, senior test engineer of Nanjing Quality Inspection Institute and National Smart Grid Application Product Quality Inspection and Testing Center (Jiangsu).
Yangtze Evening News Purple Cow News reporter Xue Ling.
Low temperatures will make the battery less active.
In the past two days, Nanjing has cooled down, and I found that the electric bicycle 'loses power' very quickly. Ms. Li, who usually relies mainly on electric bicycles to travel, told reporters that when the weather is warm, it is no problem to ride her electric bicycle for 50 kilometers, but she can only ride 40 kilometers in these two days, "I don't know if the battery is not working." ”
Why does the electric bicycle "lose power" so quickly in winter?Wu Shiping said that the batteries used in electric bicycles on the market at present, in the cold winter, the activity of the battery will decrease with the drop in temperature, and the power storage capacity of the battery will be reduced accordingly, generally speaking, it will be reduced by about two to three percent. If there is less stored power, the amount of power that can be released will naturally decrease, and for users, an obvious feeling is that the "power off" is particularly fast.
Replace the battery capacity to adapt.
When you find that the electric bike "loses power" very quickly, does it mean that the battery needs to be replaced immediately?Wu Shiping said that the normal use time of electric bicycle batteries is 2 to 3 years, if the use time is more than two years, and it is found that the mileage is significantly reduced in both winter and summer, it means that the battery needs to be replaced. If it is only a "power loss" in the case of low temperature in winter, and the situation improves significantly after the weather is warm, there is no need to replace the battery.
It should be reminded that when consumers replace the battery of an electric bicycle, it is best to choose the same capacity as the original car, do not blindly covet large capacity, and do not reduce the capacity to let "small horses pull big carts".
If the power drops to 30%, it should be charged in time.
In winter, the electric bicycle "loses power" quickly, and timely charging is not only a guarantee for smooth riding, but also a protection for the battery. Deep discharge is one of the most damaging practices for batteries, i.e. the battery is completely discharged to a lower charge level, and frequent deep discharges will result in a shorter battery life. No matter what the season, it is recommended to charge the electric bicycle in time when the power drops to 30%. If you don't use the e-bike for a long time, it is recommended to charge it once a month or so. Consumers should also be reminded that in winter, due to the decrease in temperature, the tires will become stiffer and the coefficient of friction will also decrease, which will affect the stability and safety of riding. It is recommended that consumers regularly check whether the air pressure of the tires is sufficient, check the sensitivity of the brakes, and regularly maintain the e-bike. When riding, it is best to try to maintain a constant speed and drive smoothly, and avoid operations such as sudden braking and sudden acceleration, which will increase the discharge current of the battery and accelerate the consumption of battery power.
To be on the safe side, don't be greedy.
In addition to the battery, the quality of the e-bike is also closely related to the safety of the rider. In an interview with a reporter from the Yangtze Evening News, it was learned that from the previous spot checks, the unqualified items of electric bicycles are mainly concentrated in the quality of the whole vehicle, speed limits, chargers and batteries, lighting, reflectors, etc. Electric bicycles have clear requirements for the quality of the whole vehicle, including the battery, and the weight of the whole vehicle shall not exceed 55 kg. In order to increase the mileage of electric bicycles, some companies will replace large-capacity batteries or replace the materials on the vehicle, which will lead to unqualified vehicle quality. In addition, according to the standard, the maximum speed of electric bicycles does not exceed 25km/h, but in fact, some vehicles can increase their driving speed by cutting the speed limit line and software decoding. (Yangtze Evening News).