1# Battery Manager<a name="EN-US_TOPIC_0000001124094823"></a>
2
3-   [Introduction](#section11660541593)
4-   [Directory Structure](#section19472752217)
5-   [Repositories Involved](#section63151229062)
6
7## Introduction<a name="section11660541593"></a>
8
9The Battery Manager module provides the following functions:
10
111.  Obtaining battery information
122.  Obtaining the battery charging status and the battery state of charge (SoC)
133.  Power off charging
14
15**Figure 1** Architecture of the Battery Manager module<a name="fig106301571239"></a>
16
17![](figures/power-management-subsystem-architecture.png "Architecture of the power management subsystem")
18
19## Directory Structure<a name="section19472752217"></a>
20
21```
22base/powermgr/battery_manager
23├── figures                  	# Architecture
24├── frameworks                  # Framework layer
25│   ├── napi                 	# NAPI layer
26│   └── native                  # Native layer
27├── interfaces                  # API layer
28│   └── inner_api               # Internal APIs
29├── sa_profile                  # SA profile
30└── services                    # Service layer
31│   └── native                  # Native layer
32│   └── zidl                    # Zidl API layer
33├── test                        # Test cases
34│   ├── fuzztest                # Fuzz test
35│   ├── unittest                # Unit test
36│   ├── systemtest              # System test
37│   └── utils                   # Test tools
38└── utils                       # Utilities
39```
40
41
42
43## Repositories Involved<a name="section63151229062"></a>
44
45[Power Management Subsystem](https://gitee.com/openharmony/docs/blob/master/en/readme/power-management.md)
46
47[powermgr_power_manager](https://gitee.com/openharmony/powermgr_power_manager)
48
49[powermgr_display_manager](https://gitee.com/openharmony/powermgr_display_manager)
50
51**powermgr_battery_manager**
52
53[powermgr_thermal_manager](https://gitee.com/openharmony/powermgr_thermal_manager)
54
55[powermgr_battery_statistics](https://gitee.com/openharmony/powermgr_battery_statistics)
56
57[powermgr_battery_lite](https://gitee.com/openharmony/powermgr_battery_lite)
58
59[powermgr_powermgr_lite](https://gitee.com/openharmony/powermgr_powermgr_lite)
60