What behaviors may affect battery service life?

The first thing to protect lead-acid batteries is to protect the charger.

Generally, the charger should not be placed in the trunk or basket of the electric bike. Under special circumstances, it must be moved, and the charger must be packed with foam to prevent vibration.

After many chargers undergo vibration, their internal components will be unsoldered and the resistance of the potentiometer will drift which may make the entire voltage parameter to drift and result in an abnormal charging state. Moreover, keep the charger ventilated when charging, otherwise it will not only affect the service life of the charger, but also may cause thermal drift which will affect the charging state. This will damage the battery. Therefore, it is very important to protect the charger.

Second, charge it every day. Even if you don't have long requirements for the ability to continue, you can use it for 2 to 3 days with single charge, but it is still recommended to charge it every day, so that the battery is in light cycle state, and the battery life will be prolonged.

Some early mobile phone users think that it is best to charge the battery after it is basically used up. This is not correct. The memory of lead-acid batteries is not that strong. Frequent discharge of electricity has a greater impact on the life of the battery. Most chargers may be 97% to 99% charged after the indicator turns to indicate full charge. Although the influence of only 1% ~ 3% undercharge on the running capacity can be almost ignored, it will also form undercharge accumulation, so after the battery is fully charged, it is better to continue the float charging as much as possible, which is also beneficial to prevent lead-acid battery sulfuration.

Deep discharge regularly. A regular deep discharge of the battery is also conducive to "activating" the battery, which can slightly increase the battery's capacity. The general method is to fully discharge the battery periodically. The method of full discharge is to ride the bike under normal load conditions on a flat road to the first undervoltage protection. Note that special emphasis is placed on the first undervoltage protection. After the battery is under voltage protection for the first time, after a period of time, the voltage of the battery will rise and return to a non-undervoltage state. At this time, if the battery is used again, the battery will be seriously damaged. After the complete discharge, the battery is fully charged. You will feel that the battery capacity has improved.

Users should pay attention to the charging environment. The best ambient temperature for charging is 25°C. At present, most chargers do not have an automatic control system that adapts to the ambient temperature, so most chargers are designed according to the ambient temperature of 25°C, so charging at 25°C is better. Otherwise, the problems of undercharging in winter and overcharging in summer are prone to occur. However, it is rare that the ambient temperature is really 25°C, so there will inevitably be the problem of overcharging in summer and undercharging in winter. When charging, it is best to arrange the battery and charger in a ventilated and temperature-regulated environment.

It is especially reminded that when the battery is in high temperature in summer, pay attention to the safety of the battery. Try to put the battery in a ventilated environment, do not charge in a high temperature environment, and avoid water in the battery as much as possible.

The life of lithium batteries is related to the followings.

The charging temperature of the lithium battery is 0℃～45℃, and the discharge temperature of the lithium battery is -20℃~60℃.

Lithium batteries have no memory effect and can be charged as they are used, but it should be noted that lithium batteries cannot be over-discharged. Over-discharge will cause a very large capacity loss.

The safe working voltage range of the ternary lithium battery is 2.75~4.2V, and the safe working voltage of the lithium iron phosphate battery is 2.5~3.65V. If the lithium ion in the battery is lower or higher than this voltage range, it will become very unstable and even cause an accident. In order to ensure that the battery is in a safe range, a dedicated charger is required, and lead-acid chargers cannot be used for charging.

When the lithium battery is left unused for a long time, it needs to be charged and discharged every six months to restore its original performance.

Before using the lithium battery, check whether it meets the requirements of the load. Using it under conditions that cannot meet the load requirements or high current (over 1C) will damage the battery or shorten its service life.

Avoid frequent use of lithium batteries in high or low temperature environments. It is best to be at room temperature, as the temperature has a great influence on the characteristics of the lithium battery.