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Home › Reviews › Charging Compatibility › Compatibility Test of Apple iPad Pro M4
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Compatibility Test of Apple iPad Pro M4

Joey
March 7, 2025

Introduction

Compatibility Test of Apple iPad Pro M4-Chargerlab

The new iPad Pro M4 comes with an 8,160mAh (31.29Wh) battery, and Apple officially claims it can last up to 10 hours when browsing the web over Wi-Fi or watching videos. It features a Thunderbolt/USB 4 port and includes a 20W USB-C power adapter in the box. This time, we’ll take a look at how well this iPad works with original, third-party chargers and power banks.

Charging Compatibility Test

Original Chargers

Compatibility Test of Apple iPad Pro M4-Chargerlab

First, using the Apple 20W charger included in the box, the measured input power is approximately 8.63V 2.12A 18.28W.

Compatibility Test of Apple iPad Pro M4-Chargerlab

Switching to a 61W charger increases the input power to 14.71V 2.2A 33.27W.

Compatibility Test of Apple iPad Pro M4-Chargerlab

Summarizing data from multiple Apple chargers, it is evident that original Apple chargers offer excellent compatibility.

Compatibility Test of Apple iPad Pro M4-Chargerlab

When plotting the charging power data into a bar chart, all tested chargers were able to reach either their own maximum output or the iPad’s charging limit, with the highest power measured at around 33.27W.

Third-party Chargers

Sometimes, when you forget your charger, you may have to use a third-party charger. So let’s check how well third-party chargers work with the iPad Pro M4 using the original charging cable.

Compatibility Test of Apple iPad Pro M4-Chargerlab

When using an Anker 65W charger, the power measurement is around 14.65V 2.23A 32.71W.

Compatibility Test of Apple iPad Pro M4-Chargerlab

While the UGREEN 160W charger reaches 14.77V 2.32A 34.27W.

Compatibility Test of Apple iPad Pro M4-Chargerlab

Summarizing the test data, most third-party chargers provided stable power output, with the majority triggering 15V voltage, while a few operated at 5V or 12V.

Compatibility Test of Apple iPad Pro M4-Chargerlab

After plotting the charging power data into a bar chart, it is clear that nearly all tested third-party chargers were able to reach either their own maximum supported PD fast charging power or the iPad’s limit, showing excellent compatibility.

Power Banks

Compatibility Test of Apple iPad Pro M4-Chargerlab

Finally, using the well-known Anker 737 power bank to charge the iPad, the measured input power is around 14.67V 2.27A 33.33W.

Compatibility Test of Apple iPad Pro M4-Chargerlab

The MOMAX 65W power bank achieved a similar result, reaching 14.32V 2.38A 34.03W.

Compatibility Test of Apple iPad Pro M4-Chargerlab

In third-party power bank testing, most triggered 15V voltage, with a few at 9V.

Compatibility Test of Apple iPad Pro M4-Chargerlab

When the test data is plotted into a chart, the results are consistent with third-party chargers, with most power banks reaching the highest PD fast charging power supported by either the power bank or the iPad, once again demonstrating excellent overall compatibility.

Summary of ChargerLAB

In conclusion, although the iPad Pro M4 only comes with a 20W charger, its actual maximum charging power can reach nearly 35W. In terms of charging compatibility, original Apple chargers still perform exceptionally well, consistently reaching either their own maximum power output or the iPad’s limit. When it comes to third-party chargers and power banks, the iPad also shows excellent compatibility. For users who want the best experience, it is recommended to purchase an additional charger with at least 30W output.

Related Articles:
1. How Fast Is Apple iPad Pro 2022 Charged? - ChargerLAB Compatibility 100
2. Charging Compatibility Test of Brand New Apple iPad Mini 6 (20W-100W)
3. Unboxing of Apple iPad Pro M4

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