A complete waste of time. Modern Windows will manage your battery far more perfectly than you ever could, with crude policies as discussed.
In Win10, open a powershell and command “powercfg /?” to see the options.
Or if you just want a report, “powercfg /batteryreport” which will be saved as an html file in e.g. “Battery life report saved to file path C:\Users\xyz\battery-report.html.”
Such as this one, for my sturdy Tosh that sits on my desk, permanently powered for over 7 years, enters standby after an hour, re-boots only when an OS or AV upgrade demands it, or I suspect some other trouble, or I kill the power before leaving the house for a holiday or business trip: The memory is maxed-out and I’ve fitted an SSD, but otherwise it is a very humble machine.
The battery still has 80% of the original capacity (which I never checked originally.)
Battery report
Installed batteries
Information about each currently installed battery
BATTERY1
NAME KATMAI
MANUFACTURER TOSHIBA
SERIAL NUMBER 00002
CHEMISTRY LiIo
DESIGN CAPACITY 4,500 mWh
FULL CHARGE CAPACITY 3,597 mWh
CYCLE COUNT -
Recent usage
Power states over the last 3 days
START TIME STATE SOURCE CAPACITY REMAINING
2018-09-24 02:47:24 Active AC 99 % 3,568 mWh
04:07:09 Suspended 99 % 3,567 mWh
13:33:38 Active AC 99 % 3,561 mWh
2018-09-25 05:48:04 Suspended 99 % 3,550 mWh
15:02:57 Active AC 99 % 3,544 mWh
2018-09-26 03:14:08 Suspended 98 % 3,535 mWh
08:18:42 Active AC 98 % 3,532 mWh
11:31:03 Suspended 98 % 3,529 mWh
18:20:11 Active AC 98 % 3,525 mWh
2018-09-27 02:42:22 Report generated AC 98 % 3,520 mWh
Battery usage
Battery drains over the last 3 days
START TIME STATE DURATION ENERGY DRAINED
Usage history
History of system usage on AC and battery
BATTERY DURATION AC DURATION
PERIOD ACTIVE CONNECTED STANDBY ACTIVE CONNECTED STANDBY
2016-09-19- 2016-09-30 - - 0:41:13 -
2016-09-30- 2016-10-03 - - 34:46:56 -
2016-10-03- 2016-10-10 0:00:40 - 46:18:30 -
2016-10-10- 2016-10-17 7:17:49 - 26:20:37 -
2016-10-17- 2016-10-24 0:00:01 - 66:52:43 -
2016-10-24- 2016-10-31 1:43:06 - 39:31:14 -
2016-10-31- 2016-11-07 1:25:29 - 61:45:20 -
2016-11-07- 2016-11-14 - - 84:49:52 -
2016-11-14- 2016-11-21 - - 83:08:42 -
2016-11-21- 2016-11-28 - - 157:58:43 -
2016-11-28- 2016-12-05 - - 80:47:53 -
2016-12-05- 2016-12-12 - - 67:44:16 -
2016-12-12- 2016-12-19 - - 83:20:43 -
2016-12-19- 2016-12-27 0:00:07 - 52:45:56 -
2016-12-27- 2017-01-02 10:40:24 - 25:49:12 -
2017-01-02- 2017-01-09 6:41:11 - 47:10:41 -
2017-01-09- 2017-01-30 30:05:10 - 135:09:18 -
2017-01-30- 2017-02-07 5:02:07 - 9:37:04 -
2017-02-07- 2017-02-13 - - 20:07:26 -
2017-02-13- 2017-02-20 8:25:54 - 18:54:02 -
2017-02-20- 2017-02-27 5:29:14 - 65:52:10 -
2017-02-27- 2017-03-06 0:03:27 - 82:50:45 -
2017-03-06- 2017-03-13 8:31:24 - 32:12:44 -
2017-03-13- 2017-03-20 0:27:41 - 61:52:49 -
2017-03-20- 2017-03-27 - - 74:14:57 -
2017-03-27- 2017-04-03 0:00:11 - 42:31:11 -
2017-04-03- 2017-04-10 1:25:03 - 74:43:05 -
2017-04-10- 2017-04-17 - - 71:08:16 -
2017-04-17- 2017-05-19 - - 74:38:53 -
2017-05-19- 2017-05-22 0:00:05 - 25:51:03 -
2017-05-22- 2017-05-29 - - 65:29:57 -
2017-05-29- 2017-06-05 - - 72:24:08 -
2017-06-05- 2017-06-12 - - 81:57:23 -
2017-06-12- 2017-06-19 - - 96:06:53 -
2017-06-19- 2017-06-26 - - 102:07:51 -
2017-06-26- 2017-07-03 0:00:02 - 73:02:52 -
2017-07-03- 2017-07-10 - - 77:23:56 -
2017-07-10- 2017-07-17 - - 74:49:59 -
2017-07-17- 2017-07-24 0:00:02 - 671:41:04 -
2017-07-24- 2017-07-31 0:00:02 - 683:16:48 -
2017-07-31- 2017-08-07 - - 45:01:17 -
2017-08-07- 2017-08-14 - - 78:02:03 -
2017-08-14- 2017-08-21 - - 69:14:42 -
2017-08-21- 2017-08-28 - - 65:10:35 -
2017-08-28- 2017-09-04 - - 61:52:49 -
2017-09-04- 2017-09-11 3:07:13 - 52:57:10 -
2017-09-11- 2017-09-21 - - 22:20:49 -
2017-09-21- 2017-09-25 - - 43:19:13 -
2017-09-25- 2017-10-02 3:18:18 - 91:14:13 -
2017-10-02- 2017-10-09 0:01:17 - 65:07:59 -
2017-10-09- 2017-10-18 - - 58:20:33 -
2017-10-18- 2017-10-31 - - - -
2017-10-31- 2017-11-06 - - 63:43:23 -
2017-11-06- 2017-11-13 - - 90:39:21 -
2017-11-13- 2017-11-20 - - 70:22:21 -
2017-11-20- 2017-11-27 - - 66:47:57 -
2017-11-27- 2017-12-04 - - 41:54:04 -
2017-12-04- 2017-12-11 - - 66:38:15 -
2017-12-11- 2017-12-18 - - 63:44:56 -
2017-12-18- 2017-12-25 - - 285:26:38 -
2017-12-25- 2018-01-19 2:45:51 - 45:40:06 -
2018-01-19- 2018-01-22 - - 32:10:22 -
2018-01-22- 2018-01-29 - - 64:41:54 -
2018-01-29- 2018-02-26 - - 164:25:16 -
2018-02-26- 2018-03-05 - - 87:30:10 -
2018-03-05- 2018-03-12 - - 325:45:40 -
2018-03-12- 2018-03-19 - - 78:36:36 -
2018-03-19- 2018-03-26 - - 428:16:11 -
2018-03-26- 2018-04-02 6:36:18 - 79:11:34 -
2018-04-02- 2018-04-09 - - 78:03:17 -
2018-04-09- 2018-04-16 3:14:49 - 85:33:06 -
2018-04-16- 2018-04-23 0:01:11 - 79:50:28 -
2018-04-23- 2018-05-07 0:46:34 - 159:57:46 -
2018-05-07- 2018-05-14 - - 69:33:15 -
2018-05-14- 2018-05-21 0:47:14 - 309:59:14 -
2018-05-21- 2018-05-28 0:04:01 - 84:44:20 -
2018-05-28- 2018-06-04 - - 77:31:11 -
2018-06-04- 2018-06-11 - - 87:30:31 -
2018-06-11- 2018-06-18 0:04:01 - 346:40:17 -
2018-06-18- 2018-06-25 - - 86:54:07 -
2018-06-25- 2018-07-02 - - 81:01:55 -
2018-07-02- 2018-07-09 - - 166:52:10 -
2018-07-09- 2018-07-16 - - 85:56:09 -
2018-07-16- 2018-07-23 - - 80:38:32 -
2018-07-23- 2018-07-30 - - 11:03:49 -
2018-07-30- 2018-08-06 - - 75:13:32 -
2018-08-06- 2018-08-13 - - 81:49:45 -
2018-08-13- 2018-08-20 - - 72:11:47 -
2018-08-20- 2018-08-27 1:20:43 - 65:57:03 -
2018-08-27- 2018-09-03 0:03:29 - 90:10:36 -
2018-09-03- 2018-09-10 - - 89:32:28 -
2018-09-10- 2018-09-17 - - 56:06:53 -
2018-09-17 - - 11:48:48 -
2018-09-18 - - 12:24:49 -
2018-09-19 - - 11:55:11 -
2018-09-20 - - 12:05:32 -
2018-09-21 - - 9:09:54 -
2018-09-22 - - 5:31:47 -
2018-09-23 - - 7:28:10 -
2018-09-24 - - 11:14:53 -
2018-09-25 - - 8:58:47 -
2018-09-26 - - 11:46:33 -
Battery capacity history
Charge capacity history of the system’s batteries
PERIOD FULL CHARGE CAPACITY DESIGN CAPACITY
2016-09-19- 2016-09-30 4,199 mWh 4,500 mWh
2016-09-30- 2016-10-03 4,195 mWh 4,500 mWh
2016-10-03- 2016-10-10 4,193 mWh 4,500 mWh
2016-10-10- 2016-10-17 4,188 mWh 4,500 mWh
2016-10-17- 2016-10-24 4,183 mWh 4,500 mWh
2016-10-24- 2016-10-31 4,183 mWh 4,500 mWh
2016-10-31- 2016-11-07 4,175 mWh 4,500 mWh
2016-11-07- 2016-11-14 4,175 mWh 4,500 mWh
2016-11-14- 2016-11-21 4,175 mWh 4,500 mWh
2016-11-21- 2016-11-28 4,175 mWh 4,500 mWh
2016-11-28- 2016-12-05 4,175 mWh 4,500 mWh
2016-12-05- 2016-12-12 4,175 mWh 4,500 mWh
2016-12-12- 2016-12-19 4,175 mWh 4,500 mWh
2016-12-19- 2016-12-27 4,175 mWh 4,500 mWh
2016-12-27- 2017-01-02 4,138 mWh 4,500 mWh
2017-01-02- 2017-01-09 4,195 mWh 4,500 mWh
2017-01-09- 2017-01-30 4,144 mWh 4,500 mWh
2017-01-30- 2017-02-07 4,145 mWh 4,500 mWh
2017-02-07- 2017-02-13 4,439 mWh 4,500 mWh
2017-02-13- 2017-02-20 4,309 mWh 4,500 mWh
2017-02-20- 2017-02-27 4,124 mWh 4,500 mWh
2017-02-27- 2017-03-06 4,040 mWh 4,500 mWh
2017-03-06- 2017-03-13 4,070 mWh 4,500 mWh
2017-03-13- 2017-03-20 4,054 mWh 4,500 mWh
2017-03-20- 2017-03-27 4,054 mWh 4,500 mWh
2017-03-27- 2017-04-03 4,052 mWh 4,500 mWh
2017-04-03- 2017-04-10 4,050 mWh 4,500 mWh
2017-04-10- 2017-04-17 4,050 mWh 4,500 mWh
2017-04-17- 2017-05-19 4,050 mWh 4,500 mWh
2017-05-19- 2017-05-22 4,050 mWh 4,500 mWh
2017-05-22- 2017-05-29 4,050 mWh 4,500 mWh
2017-05-29- 2017-06-05 4,050 mWh 4,500 mWh
2017-06-05- 2017-06-12 4,050 mWh 4,500 mWh
2017-06-12- 2017-06-19 4,050 mWh 4,500 mWh
2017-06-19- 2017-06-26 4,050 mWh 4,500 mWh
2017-06-26- 2017-07-03 4,050 mWh 4,500 mWh
2017-07-03- 2017-07-10 4,050 mWh 4,500 mWh
2017-07-10- 2017-07-17 4,050 mWh 4,500 mWh
2017-07-17- 2017-07-24 4,050 mWh 4,500 mWh
2017-07-24- 2017-07-31 4,050 mWh 4,500 mWh
2017-07-31- 2017-08-07 4,050 mWh 4,500 mWh
2017-08-07- 2017-08-14 4,050 mWh 4,500 mWh
2017-08-14- 2017-08-21 4,050 mWh 4,500 mWh
2017-08-21- 2017-08-28 4,050 mWh 4,500 mWh
2017-08-28- 2017-09-04 4,050 mWh 4,500 mWh
2017-09-04- 2017-09-11 4,050 mWh 4,500 mWh
2017-09-11- 2017-09-21 4,050 mWh 4,500 mWh
2017-09-21- 2017-09-25 4,049 mWh 4,500 mWh
2017-09-25- 2017-10-02 4,001 mWh 4,500 mWh
2017-10-02- 2017-10-09 4,001 mWh 4,500 mWh
2017-10-09- 2017-10-18 4,001 mWh 4,500 mWh
2017-10-18- 2017-10-31 4,001 mWh 4,500 mWh
2017-10-31- 2017-11-06 4,001 mWh 4,500 mWh
2017-11-06- 2017-11-13 4,001 mWh 4,500 mWh
2017-11-13- 2017-11-20 3,997 mWh 4,500 mWh
2017-11-20- 2017-11-27 3,993 mWh 4,500 mWh
2017-11-27- 2017-12-04 3,993 mWh 4,500 mWh
2017-12-04- 2017-12-11 3,993 mWh 4,500 mWh
2017-12-11- 2017-12-18 3,993 mWh 4,500 mWh
2017-12-18- 2017-12-25 3,993 mWh 4,500 mWh
2017-12-25- 2018-01-19 3,993 mWh 4,500 mWh
2018-01-19- 2018-01-22 3,979 mWh 4,500 mWh
2018-01-22- 2018-01-29 3,875 mWh 4,500 mWh
2018-01-29- 2018-02-26 3,937 mWh 4,500 mWh
2018-02-26- 2018-03-05 3,875 mWh 4,500 mWh
2018-03-05- 2018-03-12 3,920 mWh 4,500 mWh
2018-03-12- 2018-03-19 3,875 mWh 4,500 mWh
2018-03-19- 2018-03-26 3,875 mWh 4,500 mWh
2018-03-26- 2018-04-02 3,830 mWh 4,500 mWh
2018-04-02- 2018-04-09 3,640 mWh 4,500 mWh
2018-04-09- 2018-04-16 3,640 mWh 4,500 mWh
2018-04-16- 2018-04-23 3,638 mWh 4,500 mWh
2018-04-23- 2018-05-07 3,637 mWh 4,500 mWh
2018-05-07- 2018-05-14 3,637 mWh 4,500 mWh
2018-05-14- 2018-05-21 3,637 mWh 4,500 mWh
2018-05-21- 2018-05-28 3,637 mWh 4,500 mWh
2018-05-28- 2018-06-04 3,637 mWh 4,500 mWh
2018-06-04- 2018-06-11 3,637 mWh 4,500 mWh
2018-06-11- 2018-06-18 3,637 mWh 4,500 mWh
2018-06-18- 2018-06-25 3,637 mWh 4,500 mWh
2018-06-25- 2018-07-02 3,637 mWh 4,500 mWh
2018-07-02- 2018-07-09 3,637 mWh 4,500 mWh
2018-07-09- 2018-07-16 3,637 mWh 4,500 mWh
2018-07-16- 2018-07-23 3,637 mWh 4,500 mWh
2018-07-23- 2018-07-30 3,637 mWh 4,500 mWh
2018-07-30- 2018-08-06 3,637 mWh 4,500 mWh
2018-08-06- 2018-08-13 3,637 mWh 4,500 mWh
2018-08-13- 2018-08-20 3,637 mWh 4,500 mWh
2018-08-20- 2018-08-27 3,637 mWh 4,500 mWh
2018-08-27- 2018-09-03 3,637 mWh 4,500 mWh
2018-09-03- 2018-09-10 3,637 mWh 4,500 mWh
2018-09-10- 2018-09-17 3,625 mWh 4,500 mWh
2018-09-17 3,597 mWh 4,500 mWh
2018-09-18 3,597 mWh 4,500 mWh
2018-09-19 3,597 mWh 4,500 mWh
2018-09-20 3,597 mWh 4,500 mWh
2018-09-21 3,597 mWh 4,500 mWh
2018-09-22 3,597 mWh 4,500 mWh
2018-09-23 3,597 mWh 4,500 mWh
2018-09-24 3,597 mWh 4,500 mWh
2018-09-25 3,597 mWh 4,500 mWh
2018-09-26 3,597 mWh 4,500 mWh
Battery life estimates
Battery life estimates based on observed drains
AT FULL CHARGE AT DESIGN CAPACITY
PERIOD ACTIVE CONNECTED STANDBY ACTIVE CONNECTED STANDBY
2016-09-19- 2016-09-30 - - - -
2016-09-30- 2016-10-03 - - - -
2016-10-03- 2016-10-10 4:14:07 - 4:32:43 -
2016-10-10- 2016-10-17 3:56:59 - 4:14:38 -
2016-10-17- 2016-10-24 - - - -
2016-10-24- 2016-10-31 2:55:05 - 3:08:22 -
2016-10-31- 2016-11-07 3:10:20 - 3:25:09 -
2016-11-07- 2016-11-14 - - - -
2016-11-14- 2016-11-21 - - - -
2016-11-21- 2016-11-28 - - - -
2016-11-28- 2016-12-05 - - - -
2016-12-05- 2016-12-12 - - - -
2016-12-12- 2016-12-19 - - - -
2016-12-19- 2016-12-27 2:42:21 - 2:55:00 -
2016-12-27- 2017-01-02 2:46:55 - 3:01:31 -
2017-01-02- 2017-01-09 2:41:01 - 2:52:43 -
2017-01-09- 2017-01-30 3:01:03 - 3:16:37 -
2017-01-30- 2017-02-07 3:06:12 - 3:22:09 -
2017-02-07- 2017-02-13 - - - -
2017-02-13- 2017-02-20 3:42:16 - 3:52:08 -
2017-02-20- 2017-02-27 2:18:43 - 2:31:22 -
2017-02-27- 2017-03-06 2:31:30 - 2:48:45 -
2017-03-06- 2017-03-13 3:02:58 - 3:22:18 -
2017-03-13- 2017-03-20 3:59:48 - 4:26:11 -
2017-03-20- 2017-03-27 - - - -
2017-03-27- 2017-04-03 4:07:37 - 4:35:00 -
2017-04-03- 2017-04-10 3:41:30 - 4:06:07 -
2017-04-10- 2017-04-17 - - - -
2017-04-17- 2017-05-19 - - - -
2017-05-19- 2017-05-22 5:37:30 - 6:15:00 -
2017-05-22- 2017-05-29 - - - -
2017-05-29- 2017-06-05 - - - -
2017-06-05- 2017-06-12 - - - -
2017-06-12- 2017-06-19 - - - -
2017-06-19- 2017-06-26 - - - -
2017-06-26- 2017-07-03 2:15:00 - 2:30:00 -
2017-07-03- 2017-07-10 - - - -
2017-07-10- 2017-07-17 - - - -
2017-07-17- 2017-07-24 2:15:00 - 2:30:00 -
2017-07-24- 2017-07-31 2:15:00 - 2:30:00 -
2017-07-31- 2017-08-07 - - - -
2017-08-07- 2017-08-14 - - - -
2017-08-14- 2017-08-21 - - - -
2017-08-21- 2017-08-28 - - - -
2017-08-28- 2017-09-04 - - - -
2017-09-04- 2017-09-11 3:44:11 - 4:09:06 -
2017-09-11- 2017-09-21 - - - -
2017-09-21- 2017-09-25 - - - -
2017-09-25- 2017-10-02 3:45:39 - 4:13:47 -
2017-10-02- 2017-10-09 3:33:56 - 4:00:37 -
2017-10-09- 2017-10-18 - - - -
2017-10-18- 2017-10-31 - - - -
2017-10-31- 2017-11-06 - - - -
2017-11-06- 2017-11-13 - - - -
2017-11-13- 2017-11-20 - - - -
2017-11-20- 2017-11-27 - - - -
2017-11-27- 2017-12-04 - - - -
2017-12-04- 2017-12-11 - - - -
2017-12-11- 2017-12-18 - - - -
2017-12-18- 2017-12-25 - - - -
2017-12-25- 2018-01-19 3:22:53 - 3:48:39 -
2018-01-19- 2018-01-22 - - - -
2018-01-22- 2018-01-29 - - - -
2018-01-29- 2018-02-26 - - - -
2018-02-26- 2018-03-05 - - - -
2018-03-05- 2018-03-12 - - - -
2018-03-12- 2018-03-19 - - - -
2018-03-19- 2018-03-26 - - - -
2018-03-26- 2018-04-02 2:44:26 - 3:13:12 -
2018-04-02- 2018-04-09 - - - -
2018-04-09- 2018-04-16 3:23:53 - 4:12:03 -
2018-04-16- 2018-04-23 3:24:59 - 4:13:34 -
2018-04-23- 2018-05-07 2:59:24 - 3:41:58 -
2018-05-07- 2018-05-14 - - - -
2018-05-14- 2018-05-21 2:59:30 - 3:42:06 -
2018-05-21- 2018-05-28 2:42:19 - 3:20:50 -
2018-05-28- 2018-06-04 - - - -
2018-06-04- 2018-06-11 - - - -
2018-06-11- 2018-06-18 2:42:19 - 3:20:50 -
2018-06-18- 2018-06-25 - - - -
2018-06-25- 2018-07-02 - - - -
2018-07-02- 2018-07-09 - - - -
2018-07-09- 2018-07-16 - - - -
2018-07-16- 2018-07-23 - - - -
2018-07-23- 2018-07-30 - - - -
2018-07-30- 2018-08-06 - - - -
2018-08-06- 2018-08-13 - - - -
2018-08-13- 2018-08-20 - - - -
2018-08-20- 2018-08-27 3:02:13 - 3:45:27 -
2018-08-27- 2018-09-03 2:46:41 - 3:26:15 -
2018-09-03- 2018-09-10 - - - -
2018-09-10- 2018-09-17 - - - -
2018-09-17 - - - -
2018-09-18 - - - -
2018-09-19 - - - -
2018-09-20 - - - -
2018-09-21 - - - -
2018-09-22 - - - -
2018-09-23 - - - -
2018-09-24 - - - -
2018-09-25 - - - -
2018-09-26 - - - -
Current estimate of battery life based on all observed drains since OS install
Since OS install 2:41:36 - 3:22:11 -