Apple iPhone 13 Pro Max Battery review: A great leap in autonomy

Arriving on the market in September 2021, the highly anticipated Apple iPhone 13 Pro Max fits into our Ultra-premium (800€ and higher) segment and comes with a completely reworked triple-camera setup, among other tantalizing features. Apple also highlights that the 13 Pro Max is capable of 2.5 more hours of battery life than its predecessor. Let’s take a look at some of its key battery test results.

Key specifications:

Battery capacity: 4352 mAh
20W charger (not included)
6.7-inch, 1284 x 2778, 120 Hz OLED display
Apple A15 Bionic (5 nm) chipset
Tested ROM / RAM combination: 256 GB + 6 GB

About DXOMARK Battery tests: For scoring and analysis in our smartphone battery reviews, DXOMARK engineers perform a variety of objective tests over a week-long period both indoors and outdoors. This article highlights the most important results of our testing. (See our introductory and how we test articles for more details about our smartphone Battery protocol.)

Test summary

Apple iPhone 13 Pro Max

battery

84
autonomy

Home/Office

104

Vivo Y72 5G

Best: Vivo Y72 5G (104)

On the go

Samsung Galaxy M51

Best: Samsung Galaxy M51 (96)

Calibrated

100

Samsung Galaxy M51

Best: Samsung Galaxy M51 (100)

73
charging

Full charge

121

Black Shark 5 Pro

Best: Black Shark 5 Pro (121)

Quick boost

111

Realme GT Neo 3

Best: Realme GT Neo 3 (111)

95
efficiency

Charge up

105

Nubia RedMagic 7 Pro

Best: Nubia RedMagic 7 Pro (105)

Discharge

115

121

Apple iPhone 13 Pro

Best: Apple iPhone 13 Pro (121)

2 days 20h

Battery life

1h01

80% Charging time

2h11

Full charging time

Position in Global Ranking

6^th

1. Oppo Reno6 5G

2. Realme GT Neo 2 5G

3. Oppo Reno8 5G

4. Oppo Reno8 Lite 5G

4. Oppo A77 5G

6. Apple iPhone 13 Pro Max

6. OnePlus Nord CE 5G

6. Vivo Y72 5G

6. Xiaomi 11T

10. Honor Magic4 Lite 5G

10. Samsung Galaxy M51

10. Xiaomi Redmi Note 11 Pro 5G

13. Oppo Find X5 Lite

13. Xiaomi Redmi Note 10

15. Oppo A74

15. Vivo Y76 5G

15. Vivo X60 Pro 5G (Snapdragon)

15. Wiko Power U30

15. Xiaomi Redmi Note 11S 5G

15. Xiaomi Redmi Note 10S

21. Honor X8 5G

21. Oppo Reno6 Pro 5G (Snapdragon)

21. Samsung Galaxy A72

24. Realme GT Neo 3

24. Xiaomi Redmi Note 10 Pro

26. OnePlus Nord 2 5G

27. Oppo A94 5G

28. Honor 70

28. Nubia RedMagic 6 Pro

28. Oppo Find X3 Neo

28. Xiaomi 11T Pro

32. Samsung Galaxy A13 5G

33. Huawei P50 Pro

34. Apple iPhone 12 Pro Max

34. Oppo A74 5G

34. Xiaomi Redmi Note 10 5G

37. OnePlus 9

38. Apple iPhone 13 Pro

38. Motorola Edge 20 Pro

38. Oppo A54 5G

38. Xiaomi Redmi Note 11

42. Nubia RedMagic 7 Pro

42. Realme GT 2 Pro

42. Vivo Y20s

45. Apple iPhone 13

45. Honor X7

45. Realme GT 5G

48. Huawei P40 Lite

48. Oppo Reno8 Pro 5G

48. Oppo Find X5 Pro

51. OnePlus Nord 2T 5G

51. Xiaomi Mi 10T Pro 5G

53. Motorola Moto G62 5G

53. OnePlus 8T

53. Oppo Find X5

56. Motorola Moto G9 Power

56. Samsung Galaxy S21 Ultra 5G (Snapdragon)

56. Wiko Power U20

59. Samsung Galaxy S21 5G (Snapdragon)

59. Xiaomi Mi 11 Ultra

61. Oppo Find X3 Lite

62. Samsung Galaxy A52 5G

62. Xiaomi Mi 11 Lite 5G

64. Black Shark 5 Pro

64. Oppo Find X3 Pro

66. OnePlus 9 Pro

67. Asus Zenfone 8

67. Samsung Galaxy S22 Ultra (Snapdragon)

69. Asus Zenfone 8 Flip

69. POCO F4 GT

69. Samsung Galaxy S21 5G (Exynos)

69. Vivo X80 Pro (Snapdragon)

73. Apple iPhone 13 mini

73. OnePlus 10 Pro

73. Realme C21

73. Xiaomi Redmi 10 2022

73. Xiaomi 12

78. Motorola Edge 30 Pro

78. Realme C11

80. Google Pixel 6

80. Samsung Galaxy S22+ (Exynos)

80. Samsung Galaxy S22 Ultra (Exynos)

80. Samsung Galaxy A33 5G

80. Vivo X51 5G

Pros

Excellent autonomy — 68 hours of moderate use
Excellent discharge efficiency

Cons

Slow charging

The Apple iPhone 13 Pro Max has posted a new top score in its segment, surpassing the previous top scorer, the iPhone 12 Pro Max, by 11 points. This significant achievement is due mainly to improved autonomy, which is attributable to the 13 Pro Max’s nearly 20% greater battery capacity, along with additional optimization. Other competitors in this review are less efficient and provide less autonomy despite having larger or similar-sized batteries.

We compared the Apple iPhone 13 Pro Max’s performance in several key categories with three other Ultra-premium devices, the Apple iPhone 12 Pro Max, the Samsung Galaxy S21 Ultra 5G (Snapdragon), and the Oppo Find X3 Pro; battery capacity, charger, display type and refresh rate, display resolution, and processor specifications for all four devices are shown in the table below.

	Apple iPhone 13 Pro Max	Apple iPhone 12 Pro Max	Samsung Galaxy S21 Ultra 5G (snapdragon)	Oppo Find X3 Pro
Battery capacity	4352 mAh	3687 mAh	5000 mAh	4500 mAh
Charger	20W, not included	20W, not included	25W, not included	65W, included
Wireless	15W	15W	15W	30W
Display type	OLED, 120 Hz	OLED, 60 Hz	OLED, 120 Hz	OLED, 120 Hz
Display resolution	2778 x 1284	2778 x 1284	2400 x 1080	2412 x 1080
Chipset	A15 Bionic	A14 Bionic	Snapdragon 888 5G	Snapdragon 888 5G

Autonomy (84)

How long a battery charge lasts depends not only on battery capacity but also on other aspects of the phone’s hardware and software. The DXOMARK Battery autonomy score is composed of three performance sub-scores: (1) Stationary, (2) On the go, and (3) Calibrated use cases. Each sub-score comprises the results of a comprehensive range of tests for measuring autonomy in all kinds of real-life scenarios.

98h

Light Usage

Active: 2h30/day

68h

Moderate Usage

Active: 4h/day

43h

Intense Usage

Active: 7h/day

In this very demanding segment, autonomy is often sacrificed in favor of ever more high-performing features. But the iPhone 13 Pro Max sets a new standard in its segment, providing an astonishing 68 hours of autonomy with moderate use — far ahead of its competitors, and among the best performers in our database to date.

Position in Global Ranking
Battery Life (moderate)

13^th

1. Vivo Y72 5G

85h

2. Wiko Power U30

80h

3. Oppo A77 5G

76h

4. Honor X8 5G

74h

5. Samsung Galaxy M51

73h

6. Xiaomi Redmi Note 11S 5G

72h

7. Wiko Power U20

71h

8. Xiaomi Redmi Note 10 5G

70h

9. Vivo Y20s

69h

10. Xiaomi Redmi Note 10

69h

11. Samsung Galaxy A13 5G

69h

12. Samsung Galaxy A72

69h

13. Apple iPhone 13 Pro Max

68h

14. Oppo Reno8 Lite 5G

66h

15. Motorola Moto G62 5G

65h

16. Honor X7

65h

17. Xiaomi Redmi Note 10 Pro

65h

18. Oppo A54 5G

65h

19. OnePlus Nord CE 5G

64h

20. Vivo Y76 5G

64h

21. Oppo A74

64h

22. Motorola Moto G9 Power

64h

23. Oppo A74 5G

63h

24. Xiaomi Redmi Note 11 Pro 5G

62h

25. Xiaomi Redmi Note 10S

61h

26. Honor Magic4 Lite 5G

61h

27. Xiaomi Redmi Note 11

60h

28. Realme GT Neo 2 5G

60h

29. Xiaomi 11T

59h

30. Realme C11

59h

31. Honor 70

58h

32. Oppo Find X5 Lite

58h

33. Oppo A94 5G

58h

34. Oppo Reno8 5G

58h

35. Realme C21

57h

36. Oppo Reno6 5G

57h

37. Xiaomi Redmi 10 2022

57h

38. Xiaomi 11T Pro

57h

39. Samsung Galaxy A52 5G

56h

40. OnePlus Nord 2 5G

54h

41. OnePlus 9

54h

42. Xiaomi Mi 11 Lite 5G

54h

43. Apple iPhone 13 Pro

53h

44. Nubia RedMagic 7 Pro

53h

45. Apple iPhone 13

52h

46. Motorola Edge 20 Pro

52h

47. OnePlus Nord 2T 5G

52h

48. Realme GT Neo 3

52h

49. Realme GT 5G

52h

50. Huawei P50 Pro

51h

51. Oppo Find X3 Neo

51h

52. Xiaomi Mi 10T Pro 5G

51h

53. Vivo X60 Pro 5G (Snapdragon)

51h

54. Xiaomi Mi 11 Ultra

50h

55. Google Pixel 6a

50h

56. Huawei P40 Lite

50h

57. Realme GT 2 Pro

50h

58. Xiaomi Redmi 9

50h

59. Samsung Galaxy S21 5G (Snapdragon)

50h

60. Samsung Galaxy A53 5G

49h

61. Asus Zenfone 8 Flip

49h

62. Oppo Find X5 Pro

49h

63. Oppo Reno8 Pro 5G

49h

64. Apple iPhone 12 Pro Max

49h

65. Samsung Galaxy S21 Ultra 5G (Snapdragon)

48h

66. Google Pixel 6

48h

67. Oppo Reno6 Pro 5G (Snapdragon)

48h

68. Oppo Find X5

48h

69. Motorola Edge 30 Pro

47h

70. Samsung Galaxy A33 5G

47h

71. Samsung Galaxy S22 Ultra (Snapdragon)

47h

72. Sony Xperia 1 IV

47h

73. Samsung Galaxy S21 5G (Exynos)

46h

74. Oppo Find X3 Lite

46h

75. Nubia RedMagic 6 Pro

46h

76. Xiaomi 12

45h

77. OnePlus 8T

45h

78. Asus Zenfone 8

45h

79. Google Pixel 5

44h

80. Samsung Galaxy S22 Ultra (Exynos)

44h

81. Oppo Find X3 Pro

44h

82. OnePlus 10 Pro

43h

83. Vivo X80 Pro (Snapdragon)

43h

84. OnePlus 9 Pro

43h

85. Google Pixel 6 Pro

41h

86. Samsung Galaxy S21 Ultra 5G (Exynos)

41h

87. Black Shark 5 Pro

41h

88. Apple iPhone 13 mini

41h

89. Apple iPhone 12 mini

40h

90. POCO F4 GT

40h

91. Samsung Galaxy S22+ (Exynos)

40h

92. Samsung Galaxy S22 (Snapdragon)

39h

93. Samsung Galaxy Z Fold3 5G

39h

94. Honor Magic4 Pro

39h

95. Vivo X51 5G

38h

96. Samsung Galaxy S21 FE 5G (Snapdragon)

38h

97. Apple iPhone SE (2022)

37h

98. Xiaomi Mi 11

36h

99. Samsung Galaxy S22 (Exynos)

35h

100. Xiaomi 12 Pro

34h

Position in Ultra-Premium Ranking
Battery Life (moderate)

1^st

1. Apple iPhone 13 Pro Max

68h

2. Apple iPhone 13 Pro

53h

3. Huawei P50 Pro

51h

4. Xiaomi Mi 11 Ultra

50h

5. Oppo Find X5 Pro

49h

6. Apple iPhone 12 Pro Max

49h

7. Samsung Galaxy S21 Ultra 5G (Snapdragon)

48h

8. Oppo Find X5

48h

9. Samsung Galaxy S22 Ultra (Snapdragon)

47h

10. Sony Xperia 1 IV

47h

11. Samsung Galaxy S22 Ultra (Exynos)

44h

12. Oppo Find X3 Pro

44h

13. OnePlus 10 Pro

43h

14. Vivo X80 Pro (Snapdragon)

43h

15. OnePlus 9 Pro

43h

16. Google Pixel 6 Pro

41h

17. Samsung Galaxy S21 Ultra 5G (Exynos)

41h

18. Samsung Galaxy S22+ (Exynos)

40h

19. Samsung Galaxy Z Fold3 5G

39h

20. Honor Magic4 Pro

39h

21. Xiaomi 12 Pro

34h

Stationary

Apple iPhone 13 Pro Max

104

Vivo Y72 5G

Best: Vivo Y72 5G (104)

A robot housed in a Faraday cage performs a set of touch-based user actions during what we call our “typical usage scenario” (TUS) — making calls, video streaming, etc. — 4 hours of active use over the course of a 16-hour period, plus 8 hours of “sleep.” The robot repeats this set of actions every day until the device runs out of power.

The Apple iPhone 13 Pro Max reaches almost 3 full days in our TUS test, one day longer than the Oppo Find X3 Pro and 10 hours more than the iPhone 12 Pro Max. Further, the 13 Pro Max shows an average drop of only 1% overnight.

It must be noted that the iPhone 13 Pro Max’s autonomy performance and battery indicator behaved erratically during the first iterations of our tests, with the phone showing significant power consumption during idle times — problems that users at large have also reported. The device’s power consumption during long idle periods significantly reduced its autonomy results in the earliest runs of our Typical Usage Scenario — for example, we measured a drop of 9% during the second night’s 8 hours of idle time! Our engineers believe this erratic behavior was indicative of the iPhone’s performing background optimization as part of its initial start-up routine, as the behavior disappeared after several days. The test results published here are based on the measurements we obtained after the device had stabilized.

Typical Usage Scenario discharge curves

On the go

Apple iPhone 13 Pro Max

Samsung Galaxy M51

Best: Samsung Galaxy M51 (96)

Using a smartphone on the go takes a toll on autonomy because of extra “hidden” demands, such as the continuous signaling associated with cellphone network selection, for example. DXOMARK Battery experts take the phone outside and perform a precisely defined set of activities while following the same three-hour travel itinerary for each device.

The Apple iPhone 13 Pro Max came in first overall in our on the go tests among devices in its segment. It handily beat its predecessor and its rivals in all of our tests, with the exception of social apps, where the Samsung Galaxy S21 Ultra 5G (Snapdragon) performed a bit better.

Autonomy for on the go use cases (full charge)

Calibrated

Apple iPhone 13 Pro Max

100

Samsung Galaxy M51

Best: Samsung Galaxy M51 (100)

For this series of tests, the smartphone returns to the Faraday cage and our robots repeatedly perform actions linked to one specific use case (such as gaming, video streaming, etc.) at a time. Starting from an 80% charge, all devices are tested until they have expended at least 5% of their battery power.

Although its performance was a bit mixed in our calibrated tests, once again the iPhone 13 Pro Max came in ahead of the competition overall.

Autonomy for calibrated use cases (full charge)

Charging (73)

The DXOMARK Battery charging score is composed of two sub-scores, Full charge and Quick boost. Full charge tests assess the reliability of the battery power gauge; measure how long it takes to charge a battery from zero to 80% capacity and from 80 to 100%; and measure how long and how much power the battery takes to go from an indicated 100% to an actual full charge. With the phone at different charge levels (20%, 40%, 60%, 80%), Quick boost tests measure the amount of charge the battery receives after being plugged in for 5 minutes.

Wired

44%

in 30 min

1h01

0 - 80%

2h11

Full charge

Wireless

25%

in 30 min

1h52

0 - 80%

2h41

Full charge

Charging remains a weak point for the Apple iPhone 13 Pro Max, as it is still stuck using a 20W charger (not included) to fill a battery whose size is finally on par with the competition’s. It scored one point less than the 12 Pro Max, which has a smaller battery and uses the same size charger. Of the devices tested here, the Oppo Find X3 Pro is the clear winner with a score of 100.

Wired
Wireless

Power consumption and battery level during full charge

Power consumption and battery level during wireless full charge

Full charge

Apple iPhone 13 Pro Max

121

Black Shark 5 Pro

Best: Black Shark 5 Pro (121)

Both the iPhone 13 Pro Max and the 12 Pro Max reach 80% capacity in about an hour, with the 12 Pro Max just a bit ahead of its newer sibling. The closeness of their charging times is indicative of the 13 Pro Max having been optimized to offer the same charging experience with a bigger battery.

For wireless charging, the 13 Pro Max is even a little faster than the older model, reaching 80% in 1 hour 52 minutes vs 2 hours 16 minutes for the 12 Pro Max.

The Oppo Find X3 Pro is much faster for both wired and wireless charging.

Wired
Wireless

Time to full charge

Position in Global Ranking
Charging Time 0-80%

77^th

1. Black Shark 5 Pro

0h13

2. Realme GT Neo 3

0h14

3. Nubia RedMagic 6 Pro

0h14

4. POCO F4 GT

0h17

5. Xiaomi 11T Pro

0h18

6. Nubia RedMagic 7 Pro

0h19

7. Oppo Reno8 5G

0h21

8. Realme GT 5G

0h21

9. Xiaomi 12 Pro

0h21

10. OnePlus 9

0h21

11. Oppo Reno6 5G

0h22

12. Honor Magic4 Pro

0h22

13. OnePlus 9 Pro

0h22

14. OnePlus Nord 2 5G

0h22

15. OnePlus Nord 2T 5G

0h22

16. Oppo Find X5 Lite

0h22

17. Oppo Reno6 Pro 5G (Snapdragon)

0h22

18. Oppo Reno8 Pro 5G

0h23

19. Oppo Find X3 Pro

0h23

20. Oppo Find X3 Neo

0h23

21. Oppo Find X5 Pro

0h23

22. Vivo X80 Pro (Snapdragon)

0h24

23. Oppo Find X5

0h25

24. OnePlus 8T

0h25

25. Realme GT Neo 2 5G

0h25

26. Oppo Find X3 Lite

0h26

27. OnePlus 10 Pro

0h26

28. Realme GT 2 Pro

0h26

29. Xiaomi 12

0h27

30. Xiaomi Mi 11 Ultra

0h28

31. Honor Magic4 Lite 5G

0h28

32. Xiaomi 11T

0h30

33. Huawei P50 Pro

0h30

34. Xiaomi Mi 11

0h31

35. Honor 70

0h32

36. Motorola Edge 30 Pro

0h34

37. Huawei P40 Lite

0h34

38. Samsung Galaxy S22+ (Exynos)

0h37

39. Xiaomi Redmi Note 11 Pro 5G

0h38

40. Oppo A94 5G

0h39

41. Vivo Y76 5G

0h39

42. Samsung Galaxy S22 Ultra (Snapdragon)

0h39

43. Samsung Galaxy S22 Ultra (Exynos)

0h40

44. Vivo X60 Pro 5G (Snapdragon)

0h40

45. Vivo X51 5G

0h41

46. OnePlus Nord CE 5G

0h42

47. Motorola Edge 20 Pro

0h43

48. Xiaomi Mi 11 Lite 5G

0h43

49. Xiaomi Mi 10T Pro 5G

0h43

50. Oppo Reno8 Lite 5G

0h44

51. Asus Zenfone 8

0h45

52. Samsung Galaxy S21 Ultra 5G (Snapdragon)

0h46

53. Oppo A74

0h48

54. Samsung Galaxy S21 5G (Exynos)

0h48

55. Samsung Galaxy S21 5G (Snapdragon)

0h49

56. Xiaomi Redmi Note 11

0h49

57. Apple iPhone 13 Pro

0h49

58. Oppo A77 5G

0h50

59. Samsung Galaxy S22 (Snapdragon)

0h50

60. Samsung Galaxy S22 (Exynos)

0h51

61. Apple iPhone SE (2022)

0h51

62. Samsung Galaxy S21 Ultra 5G (Exynos)

0h51

63. Xiaomi Redmi Note 10

0h52

64. Apple iPhone 12 mini

0h52

65. Xiaomi Redmi Note 10S

0h52

66. Samsung Galaxy S21 FE 5G (Snapdragon)

0h53

67. Samsung Galaxy A33 5G

0h54

67. Xiaomi Redmi Note 11S 5G

0h54

69. Xiaomi Redmi Note 10 Pro

0h55

70. Samsung Galaxy A53 5G

0h57

71. Apple iPhone 13 mini

0h57

72. Apple iPhone 12 Pro Max

0h57

73. Samsung Galaxy Z Fold3 5G

0h57

74. Samsung Galaxy A72

0h58

75. Apple iPhone 13

0h58

76. Asus Zenfone 8 Flip

1h01

77. Apple iPhone 13 Pro Max

1h01

78. Honor X8 5G

1h02

79. Google Pixel 6 Pro

1h02

80. Google Pixel 6

1h03

81. Honor X7

1h05

82. Sony Xperia 1 IV

1h05

83. Google Pixel 6a

1h11

84. Google Pixel 5

1h14

85. Samsung Galaxy A52 5G

1h15

86. Vivo Y72 5G

1h18

87. Oppo A74 5G

1h21

88. Samsung Galaxy M51

1h23

89. Xiaomi Redmi 10 2022

1h25

90. Vivo Y20s

1h25

91. Motorola Moto G62 5G

1h26

92. Xiaomi Redmi Note 10 5G

1h29

93. Samsung Galaxy A13 5G

1h30

94. Wiko Power U30

1h47

95. Realme C21

1h50

96. Oppo A54 5G

1h51

97. Xiaomi Redmi 9

1h52

98. Motorola Moto G9 Power

1h53

99. Realme C11

1h56

100. Wiko Power U20

2h22

Position in Ultra-Premium Ranking
Charging Time 0-80%

19^th

1. Xiaomi 12 Pro

0h21

2. Honor Magic4 Pro

0h22

3. OnePlus 9 Pro

0h22

4. Oppo Find X3 Pro

0h23

5. Oppo Find X5 Pro

0h23

6. Vivo X80 Pro (Snapdragon)

0h24

7. Oppo Find X5

0h25

8. OnePlus 10 Pro

0h26

9. Xiaomi Mi 11 Ultra

0h28

10. Huawei P50 Pro

0h30

11. Samsung Galaxy S22+ (Exynos)

0h37

12. Samsung Galaxy S22 Ultra (Snapdragon)

0h39

13. Samsung Galaxy S22 Ultra (Exynos)

0h40

14. Samsung Galaxy S21 Ultra 5G (Snapdragon)

0h46

15. Apple iPhone 13 Pro

0h49

16. Samsung Galaxy S21 Ultra 5G (Exynos)

0h51

17. Apple iPhone 12 Pro Max

0h57

18. Samsung Galaxy Z Fold3 5G

0h57

19. Apple iPhone 13 Pro Max

1h01

20. Google Pixel 6 Pro

1h02

21. Sony Xperia 1 IV

1h05

Quick boost

Apple iPhone 13 Pro Max

111

Realme GT Neo 3

Best: Realme GT Neo 3 (111)

Same charging speed and efficiency, iPhone 13 Pro Max recovers the same autonomy in a quick 5-minute charge as the 12 Pro Max, about 3 hours, which is roughly half the performance of Find X3 Pro.

		Apple iPhone 13 Pro Max	Apple iPhone 12 Pro Max	Samsung Galaxy S21 Ultra 5G (Snapdragon)	Oppo Find X3 Pro
Autonomy boost (hh:mm)	20%	3:11	3:17	3:24	5:49
	40%	3:18	3:16	3:22	6:36
	60%	3:02	3:03	2:54	4:40
	80%	1:35	1:24	2:11	3:25
Percentage boost	20%	6.3 %	8.2 %	9.2 %	18.4 %
	40%	6.5 %	8.2 %	9.1 %	20.9 %
	60%	6 %	7.6 %	7.8 %	14.7 %
	80%	3.1 %	3.5 %	5.9 %	10.8 %
Energy consumed	20%	1621 mWh	1768 mWh	2279 mWh	4020 mWh
	40%	1678 mWh	1764 mWh	2262 mWh	4563 mWh
	60%	1545 mWh	1645 mWh	1950 mWh	3223 mWh
	80%	802 mWh	761 mWh	1468 mWh	2360 mWh

Efficiency (95)

The DXOMARK power efficiency score consists of two sub-scores, Charge up and Discharge rate, both of which combine data obtained during robot-based typical usage scenario testing, outdoor mobility testing, charging evaluation, and power measurements, and then take into consideration the device’s battery capacity.

The Apple iPhone 13 Pro Max showed very similar behavior to that of the 12 Pro Max and outscored the competition in this category despite a very inefficient charge up performance, thanks to its outstanding discharge efficiency.

Charge up

Apple iPhone 13 Pro Max

105

Nubia RedMagic 7 Pro

Best: Nubia RedMagic 7 Pro (105)

Both iPhones have very poor charge-up efficiency, with slow charging speeds that result in very long charging times to go from 80% to full capacity. The Apple devices have an overall charge efficiency of around 65%, whereas their competitors are close to 80%.

Discharge

Apple iPhone 13 Pro Max

115

121

Apple iPhone 13 Pro

Best: Apple iPhone 13 Pro (121)

In direct contrast to their poor charge-up efficiency, both iPhones have outstanding discharge efficiency, with similarly low discharge current in all usages, thus demonstrating significantly better optimization than their rivals.

Conclusion

Apple designs its own hardware, its own chipset, its operating system, and many of its applications, with each piece designed to work with the others. This design optimization means that both the iPhone 13 Pro Max and 12 Pro Max drain their batteries less when in use than many other devices. Now that Apple has furnished its new flagship iPhone with a 4352 mAh battery — a size that is comparable to those of other devices in its segment — it is little wonder that the 13 Pro Max has shown remarkable improvement in our autonomy measurements. We are now eager to see Apple bring out future models with faster charging speeds!

Apple iPhone 13 Pro Max Battery review: A great leap in autonomy - DXOMARK (2023)

Test summary

Pros

Cons

Stationary

On the go

Calibrated

Charging (73)

Full charge

Quick boost

Efficiency (95)

Charge up

Discharge

Conclusion

References