Yesterday my Samsung note2 phone ran out of battery in less than 4 hours after it was fully charged,

Have you played games and listened to songs? How long did you charge and flush?

If your Samsung Note2 phone won't charge, it is recommended to try it as follows:

1.Turn off the battery, remove the battery, and use a cotton swab to wipe the battery and phone contact points.

If your phone says it's charging, but the battery is dropping, it may be because your charger is too low or damaged.

Is it a real machine How long has it been used Original charger.

The following happens.

Check that the charger and other things have been replaced;

Check if the battery is bulging and replace the battery as soon as possible, as such batteries can be dangerous.

Mismatched data cables will cause the battery to charge slowly;

The charger does not match, it is recommended to buy the original charger;

There are too many backgrounds on the phone, and it is not good to consume power while charging, so it is recommended to turn off some.

If none of these methods help you, you can go to the after-sales inspection to see what is wrong.

Hello dear Samsung users:

Samsung knows that we will provide you with high-quality solutions and answer your questions attentively, and hope to get your satisfactory evaluation.

Hello: According to your description, Samsung Note2 series mobile phones use ampere special chargers, with fast charging function, and the charging time is about 2 hours. It is recommended that you try the following methods:

1. Use the original charger to connect to the power supply.

2. Try to replace the data cable (eliminate the data cable problem).

3. If there is a spare battery, please replace the battery try (to eliminate battery problems) If the charging is still slow after the above methods, then please bring the purchase invoice, three guarantees voucher and mobile phone, power charger to contact the Samsung service center for testing by the engineer.

The charger is not original, the voltage of the non-original may be relatively small, the flush is slow, and it may be a problem with the mobile phone.

Hello: According to your description, it is recommended that you try the following:

1.Shutdown charging test.

2.Replace the charging position to eliminate slow charging caused by intermittent socket contact 3If conditions permit, replace the spare charger for testing.

4.When the phone is turned on and charged, if the mobile phone is equipped with a third-party plug-in such as a charging doctor, it is recommended to test it after uninstalling it.

5.Check whether there are foreign objects in the charging interface of the mobile phone, such as liquid ingress, debris that causes the charging port of the mobile phone to be in poor contact with the charger and causes slow charging, if this situation is recommended to be repaired as soon as possible.

6.Back up your phone data (Book, SMS, etc.) and factory reset your phone (Settings - Reset - Factory Reset.

If the problem persists, it is recommended that you bring the purchase invoice, repair card, mobile phone and charger to the local Samsung service center for detailed testing

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It is recommended that you change the battery and charger to try, it is very likely that there is a problem with the battery, my mobile phone is generally fully charged in 2 and a half hours, and the standby is not as power-intensive as you said, the standby is about 2% at most a night.