Battery Charge Controller

1 . A method comprising:

storing historic information for a battery;

receiving real-time information for the battery;

detecting a discharging rate abnormality of the battery by performing a comparison between the real-time information and the historic information;

based on the discharging rate abnormality, selecting a charging rate for charging the battery; and

charging the battery using the selected charging rate.

2 . The method of claim 1 , wherein the historic information comprises historic state of charge information with respect to time.

3 . The method of claim 2 , wherein the detecting detects an increase in a discharging rate of the battery that decreases a state of charge with respect to time.

4 . The method of claim 3 , wherein the selecting the charging rate comprises selecting a decreased charging rate that depends on an amount of the increase in the discharging rate.

5 . The method of claim 4 , wherein the selected decreased charging rate is inversely proportional to the amount of the increase in the discharging rate.

6 . The method of claim 1 , wherein the historic information comprises historic environmental information with respect to time.

7 . The method of claim 6 , wherein the historic environmental information comprises temperature with respect to time.

8 . The method of claim 7 , wherein the detecting detects temperatures for a period of time that are in excess of a temperature threshold.

9 . The method of claim 8 , wherein the selecting the charging rate comprises selecting a decreased charging rate that depends a maximum temperature of the temperatures.

10 . The method of claim 9 , wherein the selected decreased charging rate is inversely proportional to the maximum temperature.

11 . The method of claim 8 , wherein the selecting the charging rate comprises selecting a decreased charging rate that depends on an integral of the temperatures with respect to time.

12 . The method of claim 1 , wherein the charging the battery using the selected charging rate comprises incrementally charging.

13 . The method of claim 12 , comprising generating a charging signature of the battery during the incrementally charging.

14 . The method of claim 1 , wherein the historic information comprises voltage information responsive to incrementally charging the battery.

15 . The method of claim 14 , wherein the voltage information is indicative of state of charge of the battery.

16 . The method of claim 14 , wherein the incrementally charging the battery comprises using one or more of gradual trickle charging, multi-step charging, dynamic pulse charging, and mini-boost charging.

17 . The method of claim 1 , wherein the historic information comprises usage information indicative of inactivity of the battery associated with non-use.

18 . A battery system comprising:

memory that stores historic information for a battery;

an interface that receives real-time information for the battery;

detection circuitry that detects a discharging rate abnormality of the battery by a comparison between the real-time information and the historic information;

selection circuitry that, based on the discharging rate abnormality, selects a charging rate for charging the battery; and

control circuitry that calls for charging the battery using the selected charging rate.

19 . The battery system of claim 18 , wherein the historic information comprises one or more of state of charge information and environmental information.

20 . One or more non-transitory computer-readable media comprising processor-executable instructions to instruct a processor-based controller to:

store historic information for a battery;

receive real-time information for the battery;

detect a discharging rate abnormality of the battery by a comparison between the real-time information and the historic information;

based on the discharging rate abnormality, select a charging rate for charging the battery; and

call for charging the battery using the selected charging rate.