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How do you know the battery is broken?

2025-11-19 06:20:31 car

How do you know the battery is broken?

The battery is one of the core components of automobiles, electric vehicles and other equipment. Once it fails, it may directly affect the normal use of the equipment. So, how to tell if the battery is broken? The following is a summary of battery failures in hot topics across the Internet in the past 10 days to help you quickly identify battery problems.

1. Common symptoms of battery failure

How do you know the battery is broken?

When there is a problem with the battery, it usually shows the following symptoms:

Symptomspossible reasons
Difficulty startingThe battery is insufficient or aging
Dashboard lights dimBattery voltage is unstable
Battery bulges or leaksInternal battery damage
Vehicle stalls frequentlyBattery power supply is unstable
Charging speed slows downBattery capacity decreased

2. How to detect whether the battery is damaged

If you suspect there is a problem with the battery, you can check it by the following methods:

Detection methodOperation steps
voltage testUse a multimeter to measure the battery voltage. The normal value should be around 12.6V.
load testObserve whether the voltage drops suddenly when starting the vehicle. If it is lower than 9.6V, there may be a problem.
Appearance inspectionCheck whether the battery is bulging, leaking or corroded
Charging testThe battery cannot be maintained after charging, indicating that the battery is aging.

3. Countermeasures for battery failure

If the battery is confirmed to be damaged, you can take the following measures:

Question typesolution
Low batteryTry charging or powering up
Battery agingReplace with new battery
Battery leakingStop using and replace immediately
Wiring corrosionClean the electrodes and apply anti-corrosion agent

4. How to extend the service life of the battery

In order to avoid premature battery damage, the following maintenance measures can be taken:

Maintenance methodSpecific operations
Charge regularlyWhen the device is not used for a long time, charge it once a month
Avoid over-dischargeCharge in time when the battery is less than 20%
keep cleanClean the battery surface and electrodes regularly
Check charging systemMake sure the charger or generator is working properly

5. Precautions for battery replacement

If you need to replace the battery, please pay attention to the following points:

Things to noteDescription
Choose a matching modelMake sure the new battery matches the equipment parameters
Professional installationBest to have it replaced by a professional
Recycle old batteriesBatteries are hazardous waste and need to be recycled professionally
Check circuitCheck the vehicle circuit after replacement

Through the above methods, you can quickly determine whether the battery is faulty and take corresponding solutions. Regular inspection and maintenance of batteries can effectively extend their service life and avoid inconvenience caused by battery problems.

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