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The general service life of electric bicycles is 3-5 years, and the batteries of electric bicycles are replaced every 1-1.5 years.

Electric vehicles generally use lead-acid batteries. Based on 70% of the daily battery capacity, the cycle is one year. After one year, it is not that the battery is no longer used, but rather that the battery capacity gradually decreases until it runs out.

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If you want to increase the lifespan of electric vehicle batteries, you should pay attention to the following points when using them:

1. The smaller the discharge depth of the battery each time it is used, the longer its service life. Therefore, no matter how large the capacity of the battery pack is used, users should develop a good habit of charging as needed. Regularly charge to keep the battery in a saturated state, try to drive without people as much as possible, switch to pushing when encountering slopes, and try to avoid braking and starting more while driving.

2. When batteries need to be stored for a long time, they should be fully charged and regularly replenished, usually once every 1-2 months.

3. High current discharge can cause certain damage to the battery of electric bicycles, so please use pedals to assist during starting and uphill driving.

The general service life of electric bicycles is 3-5 years, and the batteries of electric bicycles are replaced every 1-1.5 years.

Electric vehicles generally use lead-acid batteries, which have advantages such as low cost and recyclability, and are widely used by most electric vehicle manufacturers. Generally, electric vehicles use batteries with a one-year warranty (and if there are quality problems in the first 8 months of this year, replace with a new battery, and replace and maintain the battery within the next 4 months). Therefore, electric vehicle batteries are used at 70% of their daily capacity, with a cycle of one year. After one year, it is not that the battery is no longer used, but that the battery capacity gradually decreases until it runs out! However, if you use it properly and charge it frequently to keep the battery in a saturated state, try not to drive with people when using it, and switch to pushing when encountering slopes. Try to avoid braking and starting more while driving. That is to say, if you follow the above points and use it, the battery life will greatly increase, which may be two years or even longer.

Due to normal use and wear and tear, the normal lifespan of a lead-acid battery is 2-3 years. Like commonly used batteries such as mobile phones and laptops, it is recommended to replace the battery after about 2 years of use for an electric vehicle.

But have you ever seen a battery that has been used for 12 years?

That's right, this is not a joke. As early as 2015, we discovered a set of Tianneng batteries that had been used for 12 years in Jiaxing, Zhejiang! This small 10AH battery has been used for a full 12 years!

Tianneng has been established for 31 years now, and this set of batteries has been 14 years since the date of production. It has accompanied Tianneng from a naive and energetic young man to a mature and stable man who has stood firm.

Witnessed how Tianneng has steadily achieved the glorious results of being a leading enterprise in new energy power batteries today.

The correct use and maintenance of electric vehicle batteries. Batteries are the power source of electric bicycles and are also consumables with high prices. Therefore, keeping batteries in good working condition and extending their service life has great practical value from both environmental and economic perspectives. The following are some maintenance methods for batteries: 

1. Newly purchased electric vehicles should be fully charged before use. Because many electric vehicles have been stored in stores for several months, even more than half a year, they must be fully charged before use. It is best not to use them immediately after being fully charged, and they should be left to stand for about ten minutes.

2. Remove the battery for charging, and during installation, ensure that the battery is securely installed on the electric bike to prevent vibration damage during cycling. Batteries must not be thrown, rolled over, or subjected to heavy pressure during transportation. 

3. Regularly remove dust and dirt from the battery cover, and pay attention to keeping the battery dry and clean to prevent it from discharging on its own. 

4. Never let the battery run low for a long time, and cultivate a good habit of charging the battery every night. If not used for a long time, it should be fully charged, placed in a cool and dry place, and regularly charged (usually for 10 days). 5. When starting an electric bicycle, you should use a foot pedal (if there is no foot pedal, you can use your foot to push the ground) to assist in starting. When going uphill, use the foot pedal to help the electric bicycle go uphill to avoid excessive discharge current and damage to the battery. 

6. When cycling, be careful not to over discharge the battery. After the battery is discharged to the termination voltage, continuing to discharge is called over discharge. Overdischarge can easily cause severe battery depletion, greatly shortening its service life. Therefore, when using batteries, deep discharge should be avoided as much as possible, and shallow discharge and frequent charging should be achieved. Generally, it is best to charge the battery once when the discharge depth is 50%. Electric bicycles generally have undervoltage protection function. When only one indicator light on the battery level display is on, the power should be turned off, a foot pedal should be used, and the battery should be charged as quickly as possible to avoid over discharging. When the battery is discharged to the termination voltage, the internal resistance is high, and the electrolyte concentration is very thin, especially when the holes and surfaces of the electrode are almost neutral. During over discharge, the internal resistance tends to heat up, expand in volume, and when the discharge current is high, there is obvious heating and even heating deformation. At this time, the concentration of lead sulfate is particularly high, and the possibility of short circuits in the surviving crystal branches increases. Moreover, at this time, lead sulfate will crystallize into larger particles, forming irreversible sulfation, which will further increase the internal resistance. The charging recovery ability is poor, and even cannot be repaired. When using batteries, it is important to prevent over discharge and take effective measures such as undervoltage protection. In addition, as the undervoltage protection of electric vehicles is controlled by the controller, other devices such as voltage meters, indicator lights, and other consumer devices outside the controller are directly powered by the battery, and their power supply is generally not controlled by the controller. Once the electric vehicle lock switch is closed, it begins to use electricity. Although the current is small, over discharge may occur after 1-2 weeks of prolonged discharge. Therefore, the lock should not be opened for a long time and should be immediately turned off when not in use. 

7. Avoid overcharging, stop charging when the charger shows full, and do not charge overnight or even for a few days. Overcharging can cause the active material on the electrode to harden and detach, resulting in dehydration and battery deformation. The main problem with overcharging is that batteries operate during high temperature seasons. Therefore, in summer, the temperature of the battery should be lowered as much as possible to ensure good heat dissipation, prevent charging after exposure to scorching sun, and keep away from heat sources. Avoid overcharging, and choose a charger that matches the battery well. It is important to fully understand the operating conditions of the battery during the high temperature season and the changes throughout its service life. Do not place the battery in an overheated environment during use, especially when charging, keep it away from heat sources. After the battery is heated, cooling measures should be taken, and charging can only be carried out when the battery temperature returns to normal. The installation position of the battery should ensure good heat dissipation as much as possible. If overheating is found, charging should be stopped, and the charger and battery should be checked. When the discharge depth of the battery is shallow or the ambient temperature is high, the charging time should be shortened. 

8. Avoid long-term power loss, as long-term power loss can cause the electrode plate to vulcanize. At low temperatures, charging mainly involves poor charging acceptance and insufficient charging, resulting in battery depletion. At low temperatures, insulation and antifreeze measures should be taken, especially when charging, which should be placed in a warm environment to ensure sufficient electricity, prevent irreversible sulfation, and extend the service life of the battery. 

9. To prevent short circuits, special care should be taken during installation or use, and insulation measures should be taken for the tools used. When wiring, electrical appliances other than the battery should be connected first, and after inspection, there should be no short circuits. Finally, the battery should be connected, and the wiring should be well insulated to prevent overlapping compression and cracking. It is prohibited to use the method of battery short circuit to detect the charged condition of the battery, in order to prevent explosion and personal injury. When the battery is in a short circuit state, its short circuit current can reach several hundred amperes. The stronger the short-circuit contact, the greater the short-circuit current, so all connecting parts will generate a large amount of heat. In weak links, the heat will be greater, which will melt the connection and cause a short circuit phenomenon. Local areas of the battery may produce explosive gases or explosive gases accumulated during charging, which can cause sparks when the connection is fused and cause the battery to explode; If the short circuit time of the battery is short or the current is not particularly high, it may not cause the connection to melt, but the short circuit still has overheating, which can damage the adhesive around the connection strip, leaving hidden dangers such as leakage. Therefore, batteries must never have short circuits. Special care should be taken during installation or use, and insulation measures should be taken for the tools used. When connecting, electrical appliances other than the battery should be connected first, and after inspection, there should be no short circuits. Finally, the battery should be connected, and the wiring should be well insulated to prevent damage caused by overlapping pressure. 

10. Avoiding long-term high current discharge of batteries will greatly damage the internal structure of the battery. It is recommended that car owners do not start for more than 5 seconds each time. Two consecutive starts are required, with a 10-15 second interval between them. 

11. Prevent exposure to sunlight. Exposure to sunlight can increase the temperature of the battery, increase the activity of various active substances in the battery, and affect its service life. 

12. The discharged battery should be replenished in a timely manner and should not be left idle for more than 12 hours.

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