The reasons for the decline in charger charging efficiency and maintenance

The reasons for the decline in charger charging efficiency and maintenance

First, the reasons for the decline in charging efficiency

Battery aging

Battery performance naturally declines over time, with reduced capacity and charge-discharge efficiency, resulting in a slower charging speed.

Problems with charging equipment

Faults in charging piles or home charging piles (such as aging wiring harnesses, poor contact, component damage, etc.) may lead to a decrease in charging efficiency.

Grid voltage fluctuation

During peak electricity consumption periods, the grid voltage drops, and the charging power decreases accordingly, affecting the charging speed.

Abnormal battery temperature

Both high and low temperature environments will reduce the charging efficiency of batteries. At low temperatures, the viscosity of the electrolyte increases and the diffusion of lithium ions is hindered. At high temperatures, the battery management system (BMS) may actively limit the charging power to protect the battery.

The charging port was selected incorrectly

Using a slow charging port instead of a fast charging port leads to a significant reduction in charging efficiency.

Charging management software limitations

The charging management software for some vehicle models may automatically adjust the charging speed based on the battery status or vehicle usage. For instance, when set to long charge mode, the charging speed will slow down.

Problem with the charging cable

Cable damage or poor contact can lead to a decrease in charging efficiency.

Battery Management System (BMS) failure

The BMS cannot effectively monitor and control the battery status, which may lead to a decrease in charging efficiency.

Improper charging operation

Improper operations such as frequently plugging and unplugging the charging cable and long-term high-power charging may affect the charging efficiency.

Second, maintenance suggestions

Check the battery status regularly

Regularly check the battery capacity and health status, and replace aged batteries if necessary.

Maintain the charging equipment

Check whether the charging piles, charging cables and interfaces are in good condition, and replace the aged or damaged parts in time.

Off-peak charging

Avoid charging during peak electricity consumption periods and choose to charge when the grid voltage is stable.

Control the temperature of the charging environment

In high or low temperature environments, take corresponding measures (such as using sunshades, heating devices, etc.) to keep the battery charging within an appropriate temperature range.

Select the charging port correctly

Choose the fast charging or slow charging port according to your needs to avoid a decrease in charging efficiency due to misuse.

Optimize the Settings of the charging management software

Check and adjust the Settings of the charging management software to ensure that the charging mode meets the requirements.

Regularly maintain the charging cable

Check if the cables are damaged or have poor contact. Replace the cables if necessary.

Regularly maintain the BMS system

Ensure the normal operation of the BMS system and update the software regularly to fix potential problems.

Standard charging operation

Avoid frequently plugging and unplugging the charging cable to reduce damage to the interface and battery. Avoid prolonged high-power charging to extend battery life.