Battery charging management method and terminal

1. A battery charging management method implemented by a terminal comprising a battery, wherein the battery charging management method comprises:

charging the battery according to a first charging policy comprising a first voltage and a first current;

obtaining a battery capacity of the battery in response to the terminal fully charging the battery N times, wherein N is a positive integer;

determining a second charging policy based on the battery capacity, wherein the second charging policy comprises a second voltage and a second current; and

charging the battery according to the second charging policy.

2. The battery charging method of claim 1 , further comprising:

obtaining charging information of the battery each time the battery is charged, wherein the charging information comprises a battery-charging termination power value and at least one of a battery charging temperature or a battery-charging initial power value; and

counting a current charging as one time of full charging in response to the charging information meeting a preset condition.

3. The battery charging method of claim 1 , wherein obtaining the battery capacity of the battery comprises calculating the battery capacity after the terminal fully charges the battery N times, and wherein the battery capacity is an average of N battery-charging termination power values obtained during the N times of full charging.

4. The battery charging method of claim 2 , wherein the preset condition comprises at least one of the following conditions:

the battery charging temperature being greater than or equal to a first threshold and being less than or equal to a second threshold, and a variation of the battery-charging termination power value relative to the battery capacity being less than or equal to a third threshold; or

the battery-charging initial power being less than or equal to a fourth threshold, and the variation of the battery-charging termination power value relative to the battery capacity being less than or equal to the third threshold.

5. The battery charging method of claim 4 , wherein the first threshold is ten degrees Celsius (° C.), and wherein the second threshold is forty ° C.

6. The battery charging method of claim 4 , wherein the third threshold is five percent (%) of the battery capacity.

7. The battery charging method of claim 4 , wherein the fourth threshold is twenty percent (%) of the battery capacity.

8. The battery charging method of claim 1 , wherein determining the second charging policy comprises determining the second charging policy based on the battery capacity in response to a quantity of full charging times being greater than or equal to a fifth threshold, and wherein the quantity of full charging times is N.

9. The battery charging method of claim 1 , wherein determining the second charging policy comprises determining the second charging policy based on the battery capacity and a quantity of battery charging times of the battery in response to a quantity of full charging times being less than a fifth threshold, and wherein the quantity of full charging times is N.

10. The battery charging method of claim 1 , wherein the second voltage is less than the first voltage or wherein the second current is less than the first current.

11. A terminal, comprising:

a battery;

a power supply management circuit coupled to the battery and configured to charge the battery according to a first charging policy comprising a first voltage and a first current; and

a processor coupled to the battery and the power supply management circuit and configured to:

obtain a battery capacity of the battery in response to the battery being fully charged N times, wherein N is a positive integer; and

determine a second charging policy based on the battery capacity, wherein the second charging policy comprises a second voltage and a second current, and

wherein the power supply management circuit is further configured to charge the battery according to the second charging policy.

12. The terminal of claim 11 , wherein the power supply management circuit is further configured to obtain charging information of the battery each time the battery is charged, wherein the charging information comprises battery-charging termination power value and at least one of a battery charging temperature or battery-charging initial power value, and wherein the processor is further configured to count a current charging as one time of full charging in response to the charging information meeting a preset condition.

13. The terminal of claim 11 , wherein the processor is further configured to calculate the battery capacity after the battery is fully charged for N times, and wherein the battery capacity is an average of N battery-charging termination power values obtained during the N times of full charging.

14. The terminal of claim 12 , wherein the preset condition comprises at least one of the following conditions:

the battery charging temperature being greater than or equal to a first threshold and being less than or equal to a second threshold, and a variation of the battery-charging termination power value relative to the battery capacity being less than or equal to a third threshold; or

the battery-charging initial power value being less than or equal to a fourth threshold, and the variation of the battery-charging termination power value relative to the battery capacity being less than or equal to the third threshold.

15. The terminal of claim 14 , wherein the first threshold is ten degrees Celsius (° C.), and wherein the second threshold is forty ° C.

16. The terminal of claim 14 , wherein the third threshold is five percent (%) of the battery capacity.

17. The terminal of claim 14 , wherein the fourth threshold is twenty percent (%) of the battery capacity.

18. The terminal of claim 11 , wherein the processor is further configured to determine the second charging policy based on the battery capacity in response to a quantity of full charging times being greater than or equal to a fifth threshold, and wherein the quantity of full charging times is N.

19. The terminal of claim 11 , wherein the processor is further configured to determine the second charging policy based on the battery capacity and a quantity of battery charging times in response to a quantity of full charging times being less than a fifth threshold, and wherein the quantity of full charging times is N.

20. A non-transitory computer readable storage medium storing an instruction, wherein a terminal executes the instruction to:

charge a battery according to a first charging policy comprising a first voltage and a first current;

obtain a battery capacity of the battery in response to the terminal fully charging the battery N times, wherein N is a positive integer;

determine a second charging policy based on the battery capacity, wherein the second charging policy comprises a second voltage and a second current; and

charge the battery according to the second charging policy.