Electric bikes lose power quickly in winter. How to keep the battery sufficient and long-lasting?
Temperatures have dropped to lows in many regions across the country. The cold weather has affected people's travel. Many electric vehicle users have found that when the weather gets cold, electric vehicles consume electricity faster and faster and cannot be fully charged. It turns out that a full charge in summer can last a day. It's no problem to travel 60 kilometers to and from work, but when it's cold, you can only run 40 to 50 kilometers! Why is this?
Most electric vehicles currently on the market use lead-acid batteries or lithium batteries. The power generation principle of lead-acid batteries is to use chemical reactions to generate electricity. After the temperature drops in winter, the temperature of the solution in the lead-acid battery decreases, and the activity of the substances in the lead-acid batteries also decreases. When a chemical reaction occurs, the amount of electricity generated and released will decrease.
Generally speaking, the more suitable temperature for lead-acid battery power release is around 25°C. Once the temperature is lower than 15°C, the power generated by the battery will be less than two-thirds of the original; if the temperature drops below zero, the power generated will still be There will be less.
Lithium batteries are chemical batteries, and their discharge is also a chemical reaction process. The negative electrode of a lithium battery releases lithium ions through a chemical reaction, and the lithium ions are transported through the electrolyte solution and embedded in the positive electrode, thereby generating current for power supply. The discharge performance of the battery depends not only on the positive and negative electrode materials and electrolyte, but also on the discharge temperature and current of the battery. The viscosity of the electrolyte increases at low temperatures, resulting in a decrease in the ability of lithium ions to pass through the solution, a decrease in activity, and an increase in resistance, resulting in a decrease in battery discharge voltage, thereby reducing the battery life. available capacity and results in faster power consumption
First of all, when charging your electric vehicle, try not to do it outdoors. When charging in some communities or buildings, you can give priority to choosing a special charging cabinet or charging room. Charging here is faster, more durable, and safer than charging outdoors. In order to ensure that the battery has sufficient power, some flame-retardant materials can be used to cover the battery. In this way, as the temperature of the battery rises, the capacity will also increase. When charging, even if the color of the charger turns green, the charging time can be extended for a while, but remember not to take too long.
Secondly, keep a good grasp of the battery's power. When the battery power remains at 25%, it needs to be charged in time. Long-term fast charging will also shorten the battery life. You should try to avoid this situation, check the electric vehicle power in time, and charge reasonably.
When riding an electric bicycle, do not push the power door all the way. In winter, the battery power is relatively low. If the switch is increased, the current of the battery will increase, which will accelerate the consumption of the battery. Sudden braking and restarting consume several times more power than during normal driving. In order to reduce power consumption in cold weather, try to ride at a constant speed and safely
