As lithium batteries are widely used in new energy pure electric vehicles, some people predict that lithium batteries will replace lead-acid batteries. In fact, it is too early to draw such a conclusion. Since Plante invented the lead-acid battery in 1859, it has a history of more than 150 years. Through constant reform and innovation, it is now more environmentally friendly and safer, and has long been favored for its stable performance, mature technology, low price, safe use and wide range of applications. Many consumers also point out its shortcomings, and the main problems are as follows:

1. Poor-quality chargers cause overcharging. Electric vehicle fires while charging under carports are often seen even in winter. Some vehicle manufacturers or dealers purchase batteries and chargers separately to reduce costs. Dealers choose high-quality, well-reputed brand batteries such as Xupai batteries. Xupai batteries are of excellent quality with good service; its sales, customer service, technical support and maintenance systems are well established and provide consumers with better after-sales service. But when it comes to chargers, the cheaper the better. If the charger is of poor quality and its overload automatic power-off function fails, the lead-acid battery will be overcharged. During charging, both the lead-acid battery and the charger give off heat, and if charging continues under prolonged high temperature, spontaneous combustion can occur. In fact, in addition to battery quality, charger quality is equally important.

2. Charging only after the battery is drained, or using fast charging. For convenience and to save time, many consumers wait until the battery is completely drained before charging, or ride with little charge left until the vehicle stops and then use coin-operated fast chargers. In fact, batteries have an under-voltage protection function. Discharging at high current when there is no capacity left will obviously shorten battery life, and fast charging also seriously damages battery capacity.

3. Long storage without charging causes sulfation. If an electric vehicle is not used for a long time, it should be stored fully charged. Batteries discharge naturally, so the charge level should be checked and recharged regularly. Keeping a battery in a deficit state for a long time will sulfatize it, greatly reduce its capacity and eventually make it fail.

4. Overloading does great harm to the battery and other parts. Overloading requires high-current discharge, which greatly shocks and damages the motor, controller and battery. Some consumers buy electric vehicles specifically to carry heavy goods, and it is foreseeable that such a vehicle will not travel far within one or two months.

5. Do not park the vehicle under direct sunlight or in the rain. Lead-acid batteries fear heat, high temperature and rain. Prolonged exposure to high temperatures will damage the battery. Likewise, the vehicle fears rain. If the waterproofness of its power connectors is poor, leakage will occur, and with a large-capacity battery there is a risk of electric shock.

6. Poor riding habits.Some consumers like to twist the throttle to the maximum and ride at full speed, causing high-current shocks to the motor, battery and controller. When climbing slopes they twist the throttle even harder to increase current, trying to get over the hill in one burst instead of getting off and pushing. These are major taboos in using electric vehicles, and high-current discharge seriously affects the battery.

Take Xupai batteries as an example: at the normal temperature of 25℃, their cycle number is 360. If the wrong practices above are corrected and proper maintenance is carried out, the cycle life of a lead-acid battery can easily be extended to more than 650 times.