48: Power Info

See how much power is or has been used by the device, as well as current power usage and if the device is charging. Field availability depends on hardware, firmware and charging state. Numeric values are little-endian. Integer fields may omit high zero bytes; float32 fields retain their four-byte IEEE 754 representation.

Header

Field	Name	Description	Type
5	Method	Request a service to be perform an action Possible values: 1: SET— Set one or more values that are provided in the message payload. 2: GET— Get values for the associated message type. 3: SUBSCRIBE— Subscribe to values for the associated message type. Can be used in conjunction with other header fields to define the subscription parameters, such as Interval, Duration, Timeout, Storage Level and Message Level. If no interval is provided, messages will be sent as and when new data is available. Some data, such as GPS position, may require a set interval to be provided. 5: UNSUBSCRIBE— Unsubscribe from a previous subscription.	uint8

This is an extract of header fields that are relevant to this message type, you can find them all documented in the Headers section.

Payload

Field	Name	Description	Type	Unit
3	Total power since profile	Accumulated charge usage in mAh. Starting a power-profile subscription resets the shared accumulator; GET returns that same accumulator. Before any such reset it covers usage since startup. Present only when current monitoring is available.	float32	mAh
4	Current	Instantaneous Current power usage	float32	mA
5	Charging	Is the device currently charging	bool
6	External Voltage	Measured external voltage; omitted when zero.	float32	V
7	Total power since last TX	Charge used since the last transmission; present only when current monitoring is available.	float32	mAh
8	Charge Current	Charge current reported by the charger on supported BQ-equipped devices; present only while charging and when nonzero. Values are refreshed periodically.	float32	mA
9	Input Current	Available on supported BQ-equipped devices; present only while charging and when nonzero. On BQ2589x devices, this is the input-current limit in effect, not measured input draw. Values are refreshed periodically; GET does not trigger a fresh charger read.	float32	mA
10	Average Current	Average current in mA, rounded to the nearest integer and clamped to 0..65535. Zero before current samples are available. Uses the accumulated current-sampling window when nonempty, otherwise the previous completed window (nominally 3 seconds). Encoded in one or two little-endian bytes.	uint16	mA

Examples

Get request

Protocol

03

3

Length

2000

20 bytes

Type

4800

48 (Power Info)

Header Count

0200

2

Header Types

0105

1, 5

Message ID

0411000000

11

Method

0102

2 (GET)

Payload Count

0000

0

Checksum

1476

19470

📡 Real example from Generate tool on 2025-10-14Created using the generate tool, this was tested against an RH2 device, sent from Toit.

Get response

Protocol

3

3

Length

350

35 bytes

Type

480

48 (Power Info)

Header Count

20

2

Header Types

34

3, 4

Response to

411000

11

Status

10

0 (OK)

Payload Count

30

3

Payload Types

534

5, 3, 4

Charging

11

true

Total power since profile

41741384460

0.010531110689043999 Unit: mAh

Current

40000

0 Unit: mA

Checksum

3636

9252

📡 Real example from RH2 P1 v2296 on 2025-10-14Response to the above GET request, captured from an RH2 device as part of normal communications over I2C with the ESP32 co-processor.

Subscription Request

Protocol

3

3

Length

260

26 bytes

Type

480

48 (Power Info)

Header Count

30

3

Header Types

156

1, 5, 6

Message ID

415000

15

Method

13

3 (SUBSCRIBE)

Interval

4208700

2000 Unit: ms

Payload Count

00

0

Checksum

80185

47440

📡 Real example from Generate tool on 2025-10-14Created using the generate tool, this was tested against an RH2 device, sent from Toit.

Subscription ACK

Protocol

3

3

Length

240

24 bytes

Type

50

5 (ACK)

Header Count

20

2

Header Types

34

3, 4

Response to

415000

15

Status

10

0 (OK)

Payload Count

10

1

Payload Types

1

1

ACK Type

2480

48

Checksum

23587

22507

📡 Real example from RH2 P1 v2296 on 2025-10-14Response to the above SUBSCRIBE request, captured from an RH2 device as part of normal communications over I2C with the ESP32 co-processor.

Subscription update, while on charge

Protocol

3

3

Length

320

32 bytes

Type

480

48 (Power Info)

Header Count

10

1

Header Types

1

1

Message ID

478100

334

Payload Count

30

3

Payload Types

435

4, 3, 5

Current

40000

0 Unit: mA

Total power since profile

40000

0 Unit: mAh

Charging

11

true

Checksum

2912

3101

📡 Real example from RH2 P1 v2296 on 2025-10-14Response to the above subscription, captured from an RH2 device as part of normal communications over I2C with the ESP32 co-processor.

Code

For convenience, the following constants can be used to reference this message type.