The weather is getting colder, and electric vehicles have started to "problem" accordingly-battery life has dropped significantly. For example, Bikonit electric bike that could run 80 kilometers, now only run about 60 kilometers. In this case, many users will feel that there is a problem with the battery. But in fact, this phenomenon of "cold weather and shortened battery life" is completely normal, and the reasons for this phenomenon are mainly divided into two aspects.
1.The temperature drops and the Bikonit battery storage capacity drops
80% of electric vehicles on the market use lead-acid batteries. The best charging and discharging environment temperature for lead-acid batteries is 20-30℃. In this temperature range, the battery has the highest charge and discharge efficiency and the best effect.
When the temperature drops, the storage capacity of the battery will decrease accordingly. When the temperature is lower than 15°C, the decrease in battery capacity will be more obvious. And every time the temperature drops by 1 degree, the usable capacity will drop by about 0.8%. When the temperature is zero, the battery capacity is only about 70% of normal.
Compared with lead-acid batteries, the storage capacity of lithium batteries is less affected by the ambient temperature, so the battery life in winter will not decrease significantly. However, because the use of lithium batteries requires higher ambient temperature, it is recommended that you pay more attention to charging and using it, and try to charge in an environment above 0°C. When the temperature is lower than -20°C, the vehicle should be suspended
In fact, low temperature will not only reduce the battery capacity, but also increase the riding resistance, thereby shortening the cruising range.
First of all, as the temperature drops, the air in the tires of electric vehicles expands and contracts with heat, causing the tire pressure to decrease, and the friction between the tires and the ground increases, and more energy is lost when riding.
Secondly, in winter, everyone wears thicker clothes and a larger area (especially when using windshield quilts), and the influence of wind resistance increases. And the faster the speed, the greater the resistance, and the more obvious power loss..
As the temperature rises, the storage capacity of the battery will be restored, the riding resistance will also be reduced, and the cruising range of the electric vehicle will naturally gradually return to the normal state, so don't worry too much.
In order to minimize the impact of temperature on battery life, everyone can develop the habit of charging in time when using electric vehicles on a daily basis. According to actual usage, charge as you use it.
In addition, the best temperature for charging electric vehicles is 25°C. If possible, they can be parked in an underground garage or charged in a sheltered, dry and ventilated environment. But do not charge in enclosed spaces such as indoors and corridors to avoid danger.
Anyway, Bikonit Electric Bike always the solid backing of customers, If you have any questions when you using Bikonit Electric Bike, please feel free to ask us
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