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The Hama 27W QC4+ AC Charger Can Be Used to Rapidly Charge Your Latest Samsung or Xiaomi Phone

Product Review
Reviewed Products

Reviewed Products

Pixel 4 XL

by Google Inc.

The Hama 27W QC4+ AC Charger supports Qualcomm Quick Charge 4+ (QC4+) technology for rapid charging up to 27W over USB Type-C. Through QC4+, the Hama charger can use USB Power Delivery 3.0 based PPS (Programmable Power Supply) and Augmented PDO's to quickly charge Qualcomm Snapdragon based phones that support PPS and can take advantage of the technology to optimize charging speed, performance and temperature like the Samsung Galaxy Note10+ and Galaxy S10 5G, Xiaomi Mi 9 Pro, and LG V30

Qualcomm Quick Charge 4+ technology also addresses compatibility with other phones that support non-PPS Power Delivery like the Apple iPhone 11 Pro Max or Android phones such as the Google Pixel 4 XL and Samsung Galaxy S10+. To maximize compatibility, the Hama 27W QC4+ AC Charger also supports phones using Qualcomm Quick Charge instead of USB Power Delivery like the LG, HTC, ZTE and Motorola phones. 

Here we take a closer look at the Hama 27W QC4+ AC Charger which displays the QC4+ logo on its packaging to indicate that the charger has been Qualcomm Quick Charge 4+ certified.

You won't get any cable accessory inside the packaging of the Hama 27W QC4+ AC Charger.

The Hama 27W QC4+ AC Charger allows max 27 watts output through USB Power Delivery using fixed PDO's (Power Delivery Objects) of 15 watts (5 volts @ 3 amps), 27 watts (9 volts @ 3 amps) and 27 watts (12 volts @ 2.25 amps) as well as variable power of 9.9-17.7 watts (3.3~5.9 volts @ 3 amps) and 9.9-33 watts (3.3~11 volts @ 3 amps) power profiles. 

By supporting 27 watts, the charger can provide fairly decent charging to even tablets and smaller notebook computers like Apple's 11-inch iPad Pro (2018) and  MacBook (Early 2016).

In case you are looking for a similar charger to be used in your car, you may want to consider the Hama 27W QC4+ Car Charger, also supporting 27W based QC4+ technology.

To observe the power capabilities of the Hama 27W QC4+ AC Charger, we used the USB Power Test App from Granite River Labs with the Granite River Labs USB Power Delivery Compliance C2 Tester to generate the following test results.

The USB Power Test App first negotiates a power contract for every PDO supported by the Hama 27W QC4+ AC Charger, and increases the load gradually to find the threshold where over current protection (OCP) kicks in and voltage and current start to drop for safety reasons.

The USB Power Test App reports out all the PDO's supported by the Hama charger and their OCP thresholds. OCP thresholds for the charger are set at about 15-16% above the maximum current levels for the PDO's.

PDOOCP
PDO#1 Fixed: 5V 3A3.48
PDO#2 Fixed: 9V 3A3.48
PDO#3 PPS: (3.3~5.9)V 3A3.46
PDO#4 PPS: (3.3~11)V 3A3.48

The USB Power Test App takes this data to produce an I-V curve which graphically shows the relationship between voltage and current for each PDO.  Interestingly, unlike other chargers that support PPS (Programmable Power Supply), no current fold-back behavior is observed for all the PDO's. We can see the voltage immediately shuts off once the current crosses the OCP threshold rather than curving down.  

The USB Power Test App can also use the Granite River Labs USB Power Delivery Compliance C2 Tester integrated with the GW Instek APS-7100 programmable AC power supply to compare the charger's power output vs power input so that power efficiency can be measured and compared to regulatory limits from United States of Energy (DOE) Level VI or European Union's CoC Tier 2 requirements. We can repeat the power efficiency tests for different PDO's, current load conditions, and different AC input ranges, allowing us to get a complete picture of power efficiency ranges across all different usage scenarios.

Using the USB Power Delivery Compliance C2 Tester from Granite River Labs to run just a subset of the full USB Power Delivery compliance test suite, some compliance failures were observed for the Hama 27W QC4+ AC Charger.

Power Delivery 3.0 Tests - Test Result Summary

Sl No

Test ID

Test Name

Test Result

1

TD.PD.LL3.E1

TD.PD.LL3.E1 GoodCRC Specification Revision compatibility

PASS

2

TD.PD.LL3.E2

TD.PD.LL3.E2 Retransmission

FAIL

3

TD.PD.LL3.E3

TD.PD.LL3.E3 GoodCRC Compatibility with PD2

PASS

4

TD.PD.SRC3.E1

TD.PD.SRC3.E1 Source Capability Fields Checks

PASS

5

TD.PD.SRC3.E2

TD.PD.SRC3.E2 Accept Fields Checks

PASS

6

TD.PD.SRC3.E3

TD.PD.SRC3.E3 PSRDY Fields Checks

PASS

7

TD.PD.SRC3.E4

TD.PD.SRC3.E4 Specification Revision Check after Contract

PASS

8

TD.PD.SRC3.E5

TD.PD.SRC3.E5 Source Capabilities Extended sent timely

PASS

9

TD.PD.SRC3.E6

TD.PD.SRC3.E6 Source Capabilities Extended Fields Checks

PASS

10

TD.PD.SRC3.E7

TD.PD.SRC3.E7 Battery Status sent Timely

PASS

11

TD.PD.SRC3.E8

TD.PD.SRC3.E8 Battery Status Fields Checks

PASS

12

TD.PD.SRC3.E9

TD.PD.SRC3.E9 Battery Status Fields Checks Invalid Battery reference

PASS

13

TD.PD.SRC3.E10

TD.PD.SRC3.E10 Unrecognized Message Received in Ready State

PASS

14

TD.PD.SRC3.E11

TD.PD.SRC3.E11 Get Status Fields Checks

PASS

15

TD.PD.SRC3.E12

TD.PD.SRC3.E12 Get Battery Status Fields Checks

PASS

16

TD.PD.SRC3.E13

TD.PD.SRC3.E13 Status sent timely

PASS

17

TD.PD.SRC3.E14

TD.PD.SRC3.E14 Status Fields Checks

PASS

18

TD.PD.SRC3.E15

TD.PD.SRC3.E15 Battery Capabilities sent timely

PASS

19

TD.PD.SRC3.E16

TD.PD.SRC3.E16 Battery Capabilities Fields Checks

PASS

20

TD.PD.SRC3.E17

TD.PD.SRC3.E17 Battery Capabilities Fields Checks Invalid Battery Reference

PASS

21

TD.PD.SRC3.E18

TD.PD.SRC3.E18 Manufacturer Info Sent Timely

PASS

22

TD.PD.SRC3.E19

TD.PD.SRC3.E19 Manufacturer Info Fields Checks

PASS

23

TD.PD.SRC3.E20

TD.PD.SRC3.E20 Manufacturer Info Fields Checks Invalid Manufacturer Info Target

PASS

24

TD.PD.SRC3.E21

TD.PD.SRC3.E21 Manufacturer Info Fields Checks Invalid Manufacturer Info Ref

PASS

25

TD.PD.SRC3.E22

TD.PD.SRC3.E22 Cable Type Detection

PASS

26

TD.PD.SRC3.E23

TD.PD.SRC3.E23 Vconn Swap

PASS

27

TD.PD.SRC3.E24

TD.PD.SRC3.E24 Unexpected Message Received in Ready State

PASS

28

TD.PD.SRC3.E25

TD.PD.SRC3.E25 Receiving chunked extended message

PASS

29

TD.PD.SRC3.E26

TD.PD.SRC3.E26 Soft Reset sent regardless of Rp value

PASS

30

TD.PD.SRC3.E27

TD.PD.SRC3.E27 PPS Status Sent Timely

PASS

32

TD.PD.SRC3.E29

TD.PD.SRC3.E29 SourcePPSCommTimer Deadline

PASS

33

TD.PD.SRC3.E30

TD.PD.SRC3.E30 SourcePPSCommTimer Timeout

PASS

34

TD.PD.SRC3.E31

TD.PD.SRC3.E31 SourcePPSCommTimer Stopped

PASS

35

TD.PD.SRC3.E32

TD.PD.SRC3.E32 ChunkSenderResponseTimer Timeout

PASS

36

TD.PD.SRC3.E33

TD.PD.SRC3.E33 Country Codes Sent Timely

PASS

37

TD.PD.SRC3.E34

TD.PD.SRC3.E34 Country Codes Fields Checks

PASS

38

TD.PD.SRC3.E35

TD.PD.SRC3.E35 Country Info Sent Timely

PASS

39

TD.PD.SRC3.E36

TD.PD.SRC3.E36 Country Info Fields Checks

FAIL

40

TD.PD.VDM3.E1

TD.PD.VDM3.E1 Fields Checks Discover Identity

PASS

PD2 Deterministic Tests - Test Result Summary

Sl No

Test ID

Test Name

Test Result

1

TD.PD.LL.E1

TD.PD.LL.E1 GoodCrc Timing

PASS

2

TD.PD.LL.E2

TD.PD.LL.E2 Retransmission

PASS

3

TD.PD.LL.E3

TD.PD.LL.E3 Soft Reset Usage

FAIL

5

TD.PD.LL.E5

TD.PD.LL.E5 Soft Reset

PASS

6

TD.PD.SRC.E1

TD.PD.SRC.E1 Source Capabilities sent timely

FAIL

7

TD.PD_SRC.E2

TD.PD_SRC.E2 Source Capabilities Fields Checks

PASS

8

TD.PD.SRC.E3

TD.PD.SRC.E3 SourceCapabilityTimer Timeout

PASS

9

TD.PD.SRC.E4

TD.PD.SRC.E4 SenderResponseTimer Deadline Request

PASS

10

TD.PD.SRC.E5

TD.PD.SRC.E5 SenderResponseTimer Timeout Request

PASS

11

TD.PD.SRC.E6

TD.PD.SRC.E6 PSHardResetTimer Timeout

PASS

12

TD.PD.SRC.E7

TD.PD.SRC.E7 Accept sent timely

PASS

13

TD.PD.SRC.E8

TD.PD.SRC.E8 Accept Fields Checks

PASS

14

TD.PD.SRC.E9

TD.PD.SRC.E9 PS RDY sent timely

PASS

15

TD.PD.SRC.E10

TD.PD.SRC.E10 PS RDY Fields Checks

PASS

16

TD.PD.SRC.E11

TD.PD.SRC.E11 Accept Requests can be met

PASS

17

TD.PD.SRC.E12

TD.PD.SRC.E12 Reject Requests cannot be met

PASS

18

TD.PD.SRC.E13

TD.PD.SRC.E13 Reject Request Invalid Object Position

PASS

19

TD.PD.SRC.E14

TD.PD.SRC.E14 Atomic Message Sequence

PASS

20

TD.PD.SRC.E15

TD.PD.SRC.E15 Give Source Cap

PASS

21

TD.PD.SRC.E16

TD.PD.SRC.E16 PDO Transition

PASS

24

TD.PD.VDMD.E3

TD.PD.VDMD.E3 Incorrect Fields Discover Identity

FAIL

25

TD.PD.VDMD.E4

TD.PD.VDMD.E4 Applicability

PASS

28

TD.PD.PHY.E1

TD.PD.PHY.E1 BIST Test Data

PASS

31

TD.PD.PHY.E4

TD.PD.PHY.E4 Transmitter Bit Rate and Bit Rate Drift

PASS

32

TD.PD.PHY.E5

TD.PD.PHY.E5 Transmitter Collision Avoidance

PASS

33

TD.PD.PHY.E6

TD.PD.PHY.E6 Receiver Swing Tolerance

PASS

34

TD.PD.PHY.E7

TD.PD.PHY.E7 Receiver Bit Rate Tolerance

PASS

35

TD.PD.PHY.E8

TD.PD.PHY.E8 Receiver Bit Rate Deviation Tolerance

PASS

36

TD.PD.PHY.E9

TD.PD.PHY.E9 Valid SOP Framing

PASS

37

TD.PD.PHY.E10

TD.PD.PHY.E10 Invalid SOP Framing

PASS

38

TD.PD.PHY.E11

TD.PD.PHY.E11 Valid SOP P Framing

PASS

39

TD.PD.PHY.E12

TD.PD.PHY.E12 Invalid SOP P Framing

PASS

40

TD.PD.PHY.E13

TD.PD.PHY.E13 Valid SOP PP Framing

PASS

41

TD.PD.PHY.E14

TD.PD.PHY.E14 Invalid SOP PP Framing

PASS

42

TD.PD.PHY.E15

TD.PD.PHY.E15 SOP P_Debug SOP PP Debug Framing

PASS

43

TD.PD.PHY.E16

TD.PD.PHY.E16 Valid Hard Reset Framing

PASS

44

TD.PD.PHY.E17

TD.PD.PHY.E17 Invalid Hard Reset Framing

PASS

45

TD.PD.PHY.E18

TD.PD.PHY.E18 Valid Cable Reset Framing

PASS

46

TD.PD.PHY.E19

TD.PD.PHY.E19 Invalid Cable Reset Framing

PASS

47

TD.PD.PHY.E20

TD.PD.PHY.E20 EOP Framing

PASS

48

TD.PD.PHY.E21

TD.PD.PHY.E21 Preamble

PASS

PD2 Communication Engine Tests - Test Result Summary

Sl No

Test ID

Test Name

Test Result

1

TDA.2.1.1.1

TDA.2.1.1.1 BMC PHY TX EYE

PASS

2

TDA.2.1.1.2

TDA.2.1.1.2 BMC PHY TX BIT

PASS

3

TDA.2.1.2.2

TDA.2.1.2.2 BMC PHY RX INT REJ

FAIL

4

TDA.2.1.2.1

TDA.2.1.2.1 BMC PHY RX BUSIDL

FAIL

5

TDA.2.1.3.1

TDA.2.1.3.1 BMC PHY TERM

PASS

6

TDA.2.1.3.2

TDA.2.1.3.2 BMC PHY MSG

FAIL

7

TDA.2.2.1

TDA.2.2.1 BMC PROT SEQ GETCAPS

PASS

8

TDA.2.2.2.1

TDA.2.2.2.1 BMC PROT SEQ CHKCAB P PC

FAIL

9

TDA.2.2.2.2

TDA.2.2.2.2 BMC PROT SEQ CHKCAP NOMARK P PC

PASS

13

TDA.2.2.7

TDA.2.2.7 BMC PROT BIST NOT 5V SRC

PASS

15

TDA.2.2.9

TDA.2.2.9 BMC PROT GSC REC

PASS

16

TDA.2.3.1.1

TDA.2.3.1.1 POW SRC LOAD P PC

PASS

17

TDA.2.3.2.1

TDA.2.3.2.1 POW SRC TRANS P PC

PASS

BMC Eye Diagram

Eye Diagram

https://gtrusted.com/aukey-pa-y15-amp-18w-pd-3-0-usb-c-wall-charger

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