Battery expansion is usually caused by excessive gas generated inside the battery during the charging process,leading to the expansion of the battery casing.This phenomenon is common in lithium batteries and is mainly caused by the following reasons.

The overcharge protection mechanism of the charger is a key function to ensure that the battery is not overcharged during the charging process.Overcharging refers to continuing to charge a battery when its voltage reaches or exceeds its rated voltage,which can cause excessive pressure inside the battery,potentially leading to potential hazards such as battery

　Lithium ion batteries and lead-acid batteries are common types of rechargeable batteries,and they have significant differences in charging principles,charger design,charging voltage,and current requirements.

To determine whether there is an internal circuit problem with an electric vehicle charger,observation and testing can be carried out from the following aspects:

The problem of charger flashing lights usually involves multiple key factors,among which internal faults of the charger are one of the more common causes.When the converter in the charger is damaged,it will not be able to perform circuit

This is a common USB interface,rectangular in shape with angled sides,widely used in many traditional mobile phone chargers,computer ports,and various electronic devices For example

If the internal circuit of the charger is damaged due to components,aging of the circuit,or external factors such as water ingress or moisture,it may cause the positive and negative poles to be directly

Frequent charging has a certain impact on the health of chargers,mainly reflected in the following aspects:

As new battery technologies continue to emerge,such as solid-state batteries,existing battery chargers need to change in several ways to be compatible.

The common causes,troubleshooting methods,and solutions for charger malfunctions are as follows:

The charger detects whether the battery is fully charged mainly through the following methods:

Multi port chargers can charge multiple devices simultaneously through the following methods: