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Charging method for new car batteries

Connect the positive pole of the battery to the positive pole of the power supply, and connect the negative pole of the battery to the negative pole of the power supply

The initial charging is carried out in two stages: first, use the initial charging current to charge the electrolyte until bubbles are released, and the single cell voltage rises to 2.3-2.4V. Then reduce the current to 1/2 of the initial charging current and continue charging until the electrolyte releases violent bubbles, and the ratio and voltage remain stable for 3 consecutive hours. The total charging time is approximately 45-65 hours. The temperature should be controlled between 35-40 ℃. After the initial charging, if the specific gravity of the electrolyte does not meet the regulations, distilled water or electrolyte with a specific gravity of 1.4 should be used for adjustment. After adjustment, charge for another 2 hours until the specific gravity meets the requirements.

New batteries often fail to reach their capacity after the first charge and should undergo a discharge cycle. Discharge at a discharge rate of 20 hours (i.e. discharge with a current of 1/20 of the rated capacity until the single cell voltage drops to 1.75V), then supplement the charging current until sufficient. If the capacity is still below 90% of the rated capacity after one charging and discharging cycle, another charging and discharging cycle should be conducted.

Check the appearance of the car battery before starting. The battery should be intact, without cracks, and there should be no obvious traces of battery acid leakage.

If the car has any of the above damages, do not start the car to avoid injuring yourself or others.

Wear protective goggles and rubber gloves before coming into contact with car batteries. Goggles and gloves will protect your eyes and hands from the concentrated acid splashed out from the battery.

Ensure that the jumper cable connected to the car is safe and corrosion-resistant.

If the battery cable is corroded, please use a hard bristled brush as much as possible to clean it.

Park a fully charged car next to a car that needs to be charged, but make sure that the two cars are not in contact. The ideal scenario is for two cars to be parked adjacent to each other in the same direction, or for the two cars to be parked with their heads facing each other.

Ensure that the jumper cable can connect the batteries of both vehicles. The length of jumper cables varies greatly among different models and manufacturers.

Turn off the charged car. Open the engine hood of both cars and locate the battery.

Remember the positive and negative poles of each battery. Positive extremes are marked with a plus sign (+), while negative extremes are marked with a minus sign (-).

Connect the two ends of the positive pole jumper cable to the positive terminal of the battery in both vehicles. If not specifically marked, the positive jumper cable is usually red. Connect one end of the positive jumper cable to a dead battery and the other end to a fully charged battery.

Connect one end of the negative jumper cable to a fully charged battery. In the vast majority of cases, the negative jumper cable is black.

Connect the other end of the negative jumper cable to the grounding metal component of the car. This can start a car that has run out of battery. You can connect the grounding cable to the frame, chassis, or other components that are clean enough and free of paint and oxidation.

Start the vehicle engine with a normal battery. At the same time as starting the engine, the vehicle's charging system will start charging the dead battery through a jumper cable.

Charge for at least 5 minutes after starting the engine. This will cause the dead battery to start charging itself, although it will take longer to fully charge the battery.

Attempt to start a depleted car engine. If the jumper cable and the charging battery have sufficient power, the car engine can be easily started.

If it fails to start successfully, please charge the battery for another 5 minutes.

Disassemble the jumper cables in the opposite order to the connection to avoid sparks or explosions. If you first connect the negative jumper cable to the negative terminal of a dead battery, please remove it at the end.

A car with depleted battery should be started for at least 5 minutes to allow the generator to charge the battery.

After starting the car, drive or idle for at least 20 minutes. Sometimes, the battery can be fully charged during this period of time; If the battery is not charged enough to drive the car, a new battery may need to be replaced.

The charger adopts high-frequency power supply technology and advanced intelligent dynamic adjustment charging technology. It adopts a three-stage charging method of constant current, constant voltage, and small constant current intelligence, which has the characteristics of high charging efficiency, simple operation, light weight, and small volume.

Chargers are widely used in the North China region of China, and the internal power components of machines (such as transformers, inductors, capacitors, etc.) are relatively large. Generally, there is relatively small noise when operating with large loads. However, this model has strong resistance performance in harsh power grid environmental conditions, and its reliability and stability are stronger than high-frequency machines.

The charger uses a microprocessor (CPU chip) as the processing and control center, burning complex hardware analog circuits into the microprocessor and controlling the operation of UPS through software programs. Therefore, the volume is greatly reduced, the weight is greatly reduced, the manufacturing cost is low, and the selling price is relatively low. The inverter frequency of high-frequency machines is generally above 20KHZ. However, high-frequency machines have poor tolerance under harsh power grid and environmental conditions, making them more suitable for environments with stable power grids, less dust, and suitable temperature/humidity.

Compared with industrial frequency machines, high-frequency machines have the advantages of small size, light weight, high operating efficiency (low operating cost), low noise, and are suitable for office use. They have high cost-effectiveness (at the same power, low price) and have little impact on space and environment. In contrast, high-frequency chargers are susceptible to impact (SPIKE) and transient response (TRANSIENT) caused by copiers, laser printers, and motors. Due to the transformer of industrial frequency machines isolating the mains from the load, industrial frequency machines provide safer and more reliable protection than high-frequency machines in harsh environments with mains electricity. In certain situations such as medical treatment, charging machines are required to have isolation devices. Therefore, for industrial, medical, transportation, and other applications. A power frequency machine is a better choice. The choice between the two should be balanced based on the different customer requirements, installation environment, load conditions, and other factors.

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