There are 9 reasons and solutions for battery bulging:

There are 9 reasons and solutions for battery bulging:



1. Battery quality issue. For example, some small factories use second-hand batteries for recycling and processing, or some enterprises are prone to bulging due to limited manufacturing capabilities and rough production processes.



Solution: You should purchase battery products that have good reputation, good quality, and significant product influence in the market.



2. Charger quality issue. After the price war, the quality of the charger decreased, and the use of inferior plates led to the extrusion of gas inside the battery, resulting in deformation, bulging, and cracking of the battery casing.



Solution: Avoid using inferior chargers and choose a good charger.



3. Caused by excessive discharge of the battery.



Solution: Users should pay attention to the daily maintenance of the battery, check its cleanliness and integrity, and charge it promptly when the battery level is less than half.



Why does the battery bulge? - Driving

4. At high temperatures, the internal pressure of the battery increases and the battery expands. If the battery casing is slightly deformed, as long as the fault is detected and resolved in a timely manner, it can continue to be used. If the battery bulge is severe, it indicates that the internal electrode plate has been deformed, posing a significant safety hazard.



Solution: When charging the battery, it is necessary to avoid high temperature environments. If the drum cannot be repaired, it can only be replaced.



5. The battery drum is affected by the high current during charging, and it may also be caused by long-term damage.



Solution: If the battery experiences bulging, it needs to be replaced immediately.



6. The impact of external forces on the battery. When installing or handling batteries, it is necessary to handle them with care to avoid contact between the wires inside the battery and the outside world, and to avoid external metal being connected to the positive and negative electrodes.



Solution: Try to avoid the impact of external forces on the battery, and the charger should be properly stored to avoid malfunctions.



Why does the battery bulge? - Driving

7. The incorrect timing of charging can lead to charging immediately after riding an electric vehicle, or cycling out immediately after unplugging the charger. This can result in sustained high temperatures inside the battery, causing short circuits inside the battery and resulting in small battery bulges. One battery bulge can "damage" other batteries, causing the entire set of batteries to experience "bulges".



Solution: Regardless of fully charging the bike or planning to charge it after riding, as long as it is left for about half an hour, touch the battery shell with your hand, and there will be no heating. You can ride and charge with peace of mind to avoid overheating and causing bulges.



8. The "overcharging" caused by the charger results in how long it takes for an electric vehicle to charge, depending on the vehicle. The longer the charging time, the more likely it is to cause the battery to bulge. Although our charger will "light up" when the electric vehicle is fully charged, it will actually continuously input current into the battery, keeping it constantly at a high temperature, And high temperature is the "fuse" of the battery drum.



Solution: No one can unplug the electric vehicle plug on time and on time when charging. However, there are many dual or triple timing electric vehicle chargers on the market now. These chargers have the advantage of completely avoiding the "overcharging" problem caused by not unplugging the charger in a timely manner when the electric vehicle "lights up".



Why does the battery bulge? - Driving

9. The reason for frequent use of fast charging. In fact, fast charging is to use high current charging. Its charging current is 6-10 times higher than that of ordinary chargers. High current charging has a certain impact on the battery life, which seriously exceeds the charging load of Electric vehicle battery, and will persecute the internal structure of the battery. Frequently used in the environment of high current charging, the internal resistance of the battery will consume a large current, which will lead to a large heat, resulting in water loss of the battery, accelerated battery aging, warped and deformed plates, and increased acid concentration, Over time, it will swell due to dehydration.



Solution: Try to avoid fast charging, and the charger specifications must match.
The cause of battery bulging:



1. Battery quality problems: there are quality problems in the internal battery plate group, such as micro short circuit, lack of acid, leakage and water, resulting in Thermal runaway, increasing the internal pressure of the battery, increasing the internal gas pressure, resulting in deformation of the battery shell, cracking and expansion. It is recommended to replace the battery with a good quality one.



2. Charger quality issue: Some businesses, in order to gain an advantage in competition, tamper with electric vehicle chargers by using refurbished or inferior components and inferior materials, resulting in electric vehicle chargers heating up, inaccurate parameters, and uncontrolled charging voltage limiting, resulting in internal gas compression of the battery, deformation, bulging, cracking, and even fire of the battery casing. It is recommended to replace the charger with a high-quality one.



3. Excessive discharge of the battery causes: Excessive discharge can cause a large amount of gas to wash the electrode plate, causing the active substances inside the battery to fall off, shortening the battery life, accelerating the rate of battery water loss, and also affecting the decomposition of the electrolyte, causing the temperature of the battery to rise and causing it to charge. Suggest going to a repair point for repairs.



4. Charging at high temperature makes the battery charging: The best charging environment is about 25 degrees. Do not charge at high temperature, because charging at high temperature will make the Electric vehicle battery generate more heat during charging, and the battery is narrow inside, with slow heat dissipation, resulting in a sharp rise in temperature, leading to risks such as bulges. Avoid charging at high temperatures.



5. Frequent use of a fast charging station for charging: The principle of a fast charging station is to use high current charging, which is 6-10 times the current of a regular charger. High current charging also has a certain impact on the battery life. Ultra high charging load can directly cause damage to the internal structure of the battery. Suggest reasonable charging.