@FCH dollartreecompass

I have two users with this new model. The laptop is fairly new and the users stating that the battery does not last longer.

Battery report

SYSTEM PRODUCT NAME	Dell Inc. Latitude 9440 2-in-1
BIOS	1.7.0 12/11/2023
OS BUILD	22621.1.amd64fre.ni_release.220506-1250
PLATFORM ROLE	Mobile
CONNECTED STANDBY	Supported
REPORT TIME	2024-04-2910:22:59

Installed batteries

Information about each currently installed battery

	BATTERY 1
NAME	DELL K2CPY34
MANUFACTURER	BYD
SERIAL NUMBER	27
CHEMISTRY	LiP
DESIGN CAPACITY	59,148 mWh
FULL CHARGE CAPACITY	44,398 mWh
CYCLE COUNT	76

Recent usage

Power states over the last 3 days

START TIME	STATE	SOURCE	CAPACITY REMAINING
2024-04-2610:29:26	Active	Battery	87 %	38,773 mWh
10:29:28	Connected standby	Battery	87 %	38,773 mWh
10:33:04	Active	Battery	87 %	38,681 mWh
11:08:08	Connected standby	Battery	75 %	33,345 mWh
11:33:06	Active	Battery	73 %	32,536 mWh
11:35:57	Connected standby	Battery	72 %	32,144 mWh
11:40:38	Connected standby	AC	72 %	31,994 mWh
11:40:38	Active	AC	72 %	31,994 mWh
15:42:20	Active	Battery	100 %	44,398 mWh
20:19:05	Suspended		5 %	2,426 mWh
2024-04-2707:24:40	Active	AC	5 %	2,160 mWh
2024-04-2906:13:45	Active	Battery	100 %	44,398 mWh
06:13:47	Connected standby	Battery	100 %	44,398 mWh
07:32:53	Connected standby	AC	100 %	44,398 mWh
07:32:53	Active	AC	100 %	44,398 mWh
09:00:56	Active	Battery	99 %	43,740 mWh
09:29:38	Suspended		87 %	38,820 mWh
09:30:34	Active	Battery	86 %	38,288 mWh
10:02:37	Suspended		72 %	32,167 mWh
10:08:35	Active	Battery	66 %	29,268 mWh
10:22:58	Report generated	Battery	59 %	26,403 mWh

Battery usage

Battery drains over the last 3 days

START TIME	STATE	DURATION	ENERGY DRAINED
2024-04-2610:29:26	Active	0:00:01	-	-
10:29:28	Connected standby	0:03:36	-	92 mWh
10:33:04	Active	0:35:03	12 %	5,336 mWh
11:08:08	Connected standby	0:24:58	2 %	809 mWh
11:33:06	Active	0:02:51	1 %	392 mWh
11:35:57	Connected standby	0:04:41	-	150 mWh
15:42:20	Active	4:36:45	95 %	41,972 mWh
2024-04-2906:13:45	Active	0:00:02	-	-
06:13:47	Connected standby	1:19:05	-	-
09:00:56	Active	0:28:41	11 %	4,920 mWh
09:30:34	Active	0:32:02	14 %	6,121 mWh
10:08:35	Active	0:14:23	6 %	2,865 mWh

Hello, @FCH 

It appears that the Dell Latitude 9440 2-in-1 laptops you’re referring to are experiencing shorter than expected battery life. The battery report indicates that the full charge capacity is significantly lower than the design capacity, which suggests the batteries may be degrading faster than normal.

Here are some steps you can take to troubleshoot and potentially resolve the battery issues:

Verify AC Adapter Functionality: Ensure the AC adapter is working correctly and is able to charge the battery fully.
Charge the Battery in BIOS Mode: Try charging the battery with the laptop turned off or in BIOS mode to see if it charges fully.
Run Dell Hardware Diagnostic Test: Use Dell’s built-in diagnostic tools to check for hardware issues with the battery.
Check Battery Health Status: Look into the battery health status in the BIOS or using Dell’s support software to determine if the battery is functioning properly.
Update BIOS and Drivers: Make sure the BIOS and all relevant drivers are up to date, as updates can sometimes resolve power management issues.
Run Windows Troubleshooter: Use the Windows troubleshooter for battery issues to find and fix problems with the battery settings.
Uninstall and Reinstall Microsoft ACPI Battery Driver: This can reset the battery driver and sometimes resolve recognition issues.
If these steps do not resolve the issue, and given that the laptops are fairly new, it may be worth contacting Dell Support for further assistance, especially if the batteries are still under warranty. They may provide additional troubleshooting steps or offer a replacement if the batteries are found to be defective.

I hope my suggestion is helpful for you. If you want more details please tell me.

Best Regard,
angela683h