We can check laptop battery health with cmd.
Step #1
Open Command Prompt and start with “Run as administrator.
Note: you can open the command prompt in two ways;
-
- 1. Press
Windows key + X and select run
- 2. On your screen’s left bottom, left single click on Windows icon, and write “CMD”
Step #2
In the Command Prompt, type the following command and press Enter:
powercfg /batteryreport
Now you can see the following message;
Battery life report saved to C:\Windows\system32\battery-report.html
Step #3
Simply copy the URL ad paste in any web browser to view this page. In my case, the URL is C:\Windows\system32\battery-report.html
Step #4
X= FULL CHARGE CAPACITY * DESIGN CAPACITY
Battery health = X * 100
Suppose FULL CHARGE CAPACITY= 64,129 mWh and DESIGN CAPACITY = 68,020 mWh
X= 64,129 mWh * 68,020 mWh
X=0.9427962364010585
Battery health = 0.9427962364010585 * 100
Battery health = X * 100
Battery health = 94.27
Example of my laptop battery report
Battery report
| COMPUTER NAME |
DESKTOP-VDMC99S |
| SYSTEM PRODUCT NAME |
Dell Inc. Latitude 5480 |
| BIOS |
1.9.3 03/08/2018 |
| OS BUILD |
10586.1176.amd64fre.th2_release_sec.170913-1848 |
| PLATFORM ROLE |
Mobile |
| CONNECTED STANDBY |
Not supported |
| REPORT TIME |
2024-01-20 21:07:53 |
Installed batteries
Information about each currently installed battery
|
BATTERY 1 |
| NAME |
DELL CYMGM68 |
| MANUFACTURER |
Samsung SDI |
| SERIAL NUMBER |
2322 |
| CHEMISTRY |
LION |
| DESIGN CAPACITY |
68,020 mWh |
| FULL CHARGE CAPACITY |
64,129 mWh |
| CYCLE COUNT |
– |
Recent usage
Power states over the last 3 days
| START TIME |
STATE |
SOURCE |
CAPACITY REMAINING |
| 2024-01-18 14:54:23 |
Active |
Battery |
5 % |
3,002 mWh |
| 14:56:44 |
Suspended |
|
4 % |
2,660 mWh |
| 23:19:16 |
Active |
Battery |
61 % |
38,897 mWh |
| 2024-01-19 00:03:23 |
Suspended |
|
46 % |
29,594 mWh |
| 19:36:29 |
Active |
Battery |
45 % |
29,047 mWh |
| 19:36:30 |
Suspended |
|
45 % |
29,047 mWh |
| 19:37:05 |
Active |
Battery |
45 % |
28,796 mWh |
| 20:14:07 |
Suspended |
|
35 % |
22,283 mWh |
| 20:57:56 |
Active |
Battery |
34 % |
21,987 mWh |
| 20:57:56 |
Suspended |
|
34 % |
21,987 mWh |
| 20:58:31 |
Active |
Battery |
34 % |
21,873 mWh |
| 21:59:00 |
Report generated |
Battery |
16 % |
10,526 mWh |
| START TIME |
STATE |
DURATION |
ENERGY DRAINED |
| 2024-01-18 14:54:23 |
Active |
0:02:20 |
1 % |
342 mWh |
|
| 23:19:16 |
Active |
0:44:06 |
15 % |
9,303 mWh |
|
| 19:36:29 |
Active |
0:00:00 |
– |
– |
|
| 19:37:05 |
Active |
0:37:02 |
10 % |
6,513 mWh |
|
| 20:57:56 |
Active |
0:00:00 |
– |
– |
|
| 20:58:31 |
Active |
1:00:28 |
18 % |
11,347 mWh |
Usage history
History of system usage on AC and battery
|
BATTERY DURATION |
|
AC DURATION |
| PERIOD |
ACTIVE |
CONNECTED STANDBY |
|
ACTIVE |
CONNECTED STANDBY |
| 2023-12-12 – 2023-12-19 |
18:18:00 |
– |
|
1:03:07 |
– |
| 2023-12-19 – 2023-12-26 |
24:00:21 |
– |
|
2:55:34 |
– |
| 2023-12-26 – 2024-01-02 |
10:26:08 |
– |
|
592607:11:23 |
– |
| 2024-01-02 – 2024-01-09 |
14:12:34 |
– |
|
1:22:24 |
– |
| 2024-01-09 |
2:54:08 |
– |
|
– |
– |
| 2024-01-10 |
0:46:41 |
– |
|
– |
– |
| 2024-01-11 |
2:07:36 |
– |
|
– |
– |
| 2024-01-12 |
0:06:10 |
– |
|
0:25:22 |
– |
| 2024-01-13 |
2:32:12 |
– |
|
– |
– |
| 2024-01-14 |
3:11:08 |
– |
|
– |
– |
| 2024-01-15 |
2:54:36 |
– |
|
– |
– |
| 2024-01-16 |
1:26:43 |
– |
|
– |
– |
| 2024-01-17 |
– |
– |
|
– |
– |
| 2024-01-18 |
0:43:02 |
– |
|
– |
– |
| 2024-01-19 |
1:40:51 |
– |
|
– |
– |
Battery capacity history
Charge capacity history of the system’s batteries
| PERIOD |
FULL CHARGE CAPACITY |
DESIGN CAPACITY |
| 2023-12-12 – 2023-12-19 |
64,129 mWh |
68,020 mWh |
| 2023-12-19 – 2023-12-26 |
64,129 mWh |
68,020 mWh |
| 2023-12-26 – 2024-01-02 |
64,129 mWh |
68,020 mWh |
| 2024-01-02 – 2024-01-09 |
64,129 mWh |
68,020 mWh |
| 2024-01-09 |
64,129 mWh |
68,020 mWh |
| 2024-01-10 |
64,129 mWh |
68,020 mWh |
| 2024-01-11 |
64,129 mWh |
68,020 mWh |
| 2024-01-12 |
64,129 mWh |
68,020 mWh |
| 2024-01-13 |
64,129 mWh |
68,020 mWh |
| 2024-01-14 |
64,129 mWh |
68,020 mWh |
| 2024-01-15 |
64,129 mWh |
68,020 mWh |
| 2024-01-16 |
64,129 mWh |
68,020 mWh |
| 2024-01-17 |
64,129 mWh |
68,020 mWh |
| 2024-01-18 |
64,129 mWh |
68,020 mWh |
| 2024-01-19 |
64,129 mWh |
68,020 mWh |
Battery life estimates
Battery life estimates based on observed drains
| 2023-12-12 – 2023-12-19 |
7:39:28 |
– |
|
8:07:20 |
– |
| 2023-12-19 – 2023-12-26 |
5:04:13 |
– |
|
5:22:40 |
– |
| 2023-12-26 – 2024-01-02 |
4:30:28 |
– |
|
4:46:52 |
– |
| 2024-01-02 – 2024-01-09 |
5:10:13 |
– |
|
5:29:03 |
– |
| 2024-01-09 |
8:18:30 |
– |
|
8:48:45 |
– |
| 2024-01-10 |
3:11:55 |
– |
|
3:23:34 |
– |
| 2024-01-11 |
5:31:59 |
– |
|
5:52:07 |
– |
| 2024-01-12 |
4:29:34 |
– |
|
4:45:55 |
– |
| 2024-01-13 |
4:39:00 |
– |
|
4:55:56 |
– |
| 2024-01-14 |
8:00:58 |
– |
|
8:30:09 |
– |
| 2024-01-15 |
3:24:08 |
– |
|
3:36:31 |
– |
| 2024-01-16 |
5:08:58 |
– |
|
5:27:43 |
– |
| 2024-01-17 |
– |
– |
|
– |
– |
| 2024-01-18 |
43:43:16 |
– |
|
46:22:26 |
– |
| 2024-01-19 |
4:04:29 |
– |
|
4:19:19 |
– |
Current estimate of battery life based on all observed drains since OS install
| Since OS install |
5:26:13 |
– |
|
5:46:01 |
– |
