Common problems when charging high-capacity lithium batteries include:

1. Sequence: When charging the battery, first connect the rechargeable battery, and then connect to the switching power supply. After the battery is fully charged, first unplug the switching power supply, then disconnect the rechargeable battery and charging head. When connecting the battery to the car, keep the key door closed .

2. Danger of overcharging: Unplug the charger in time after it is fully charged, and continue charging for no more than 8 hours.

3. Do not charge in sub-zero environments.

4. When charging the battery, an exclusive lithium battery charging head must be used. Quick charging on the roadside cannot be used. 48, 60 and 72 volt charging heads cannot be interchanged.

5. If the battery becomes hot during the charging process, charging and use should be stopped and the battery should be replaced immediately.

6. The charging head and rechargeable battery should be kept away from the bedroom, away from flammable materials, and kept dry.

First of all, lithium batteries are afraid of cold and heat. Don't use them in extreme environments.

Many people like to expose high-capacity lithium battery electric vehicles to the sun in summer, or park them in courtyards or on the streets in winter. This has a very negative impact on the service life of lithium batteries. Lithium-ion batteries are electrolyzed in lithium batteries. The transfer speed in the liquid and electrode sheets is closely related to the temperature. Basically, the temperature can be used normally between -20 degrees Celsius and -55 degrees Celsius. In daily life, the use temperature of lithium batteries is between 5 degrees Celsius and -35 degrees Celsius. There is no damage to lithium batteries at temperatures between degrees Celsius. Users in northern areas should try to take lithium batteries home for storage in winter and do not put them outdoors. Users in southern China should avoid exposure to the sun in summer.

Second, high-capacity lithium batteries should not be charged and discharged frequently and deeply.

Many people think that the charging frequency of hundreds of cycles for high-capacity lithium batteries in the battery car instruction manual means that it can be used multiple times even if it is plugged in many times. I think this is a misconception. I think the instruction manual refers to a complete recharge. In terms of discharge frequency, lithium batteries are different from nickel-cadmium batteries. Lithium batteries do not have any memory effect and can be charged at any time! Charging the battery when the battery is powered on will not only shorten the service life, but also protect the battery and shorten its cycle. For system use cycles, for lithium batteries, the appropriate approach is slow charging rather than deep charging.

3. You must use a compatible charger to charge the battery to avoid large current flow.

The chemical specificity of lithium batteries is much better than that of lead-acid batteries, and the requirements for charging heads are higher. If a counterfeit charging head or an incompatible fast charger is used, it will not only affect the service life of the high-capacity lithium battery itself, but also affect the service life of the high-capacity lithium battery itself. In serious cases, the diaphragm may be damaged due to overtemperature and short circuit failure may result in an explosion.

4. Do not "full charge" or "overcharge", there is no need to "activate" high-capacity lithium batteries

After many customers bought high-capacity lithium batteries for electric vehicles home, they still used lead-acid batteries and charged the lithium batteries for 10-12 hours. They felt that the lithium batteries needed to be activated. I think this is very harmful to the lithium batteries. life span, and even more strangely, the feudal superstition trickle charge, That is to say, after the battery car is fully charged, charge it for another hour to offset the interference of the internal resistance. This approach is completely incorrect. The correct approach should be to unplug the power supply immediately after the battery is fully charged. Electric vehicles It is best not to charge high-capacity lithium batteries at night as they are very prone to fire accidents.

5. No need for full battery storage

When you buy a high-capacity lithium battery for an electric vehicle, it usually has 2-3 cells of electricity and is rarely fully charged. The long storage time of full power will reduce the capacity of the lithium battery. Please pay attention to this. Your electric vehicle lithium battery It doesn't matter if it lasts for 5 or 6 years. The main features of Dongzan's high-capacity lithium battery pack are small size, light weight, large capacity, and extremely waterproof. It is most suitable for food delivery people to do express delivery.