Asus Zenfone 9 battery test: mini case, Pro Max battery life

The Asus Zenfone 9 impresses with its compact dimensions in an era when larger phones dominate the market, but it’s not only small, it’s also powerful, and Asus has made big promises in terms of battery life. battery. Does the Zenfone 9 live up to these battery claims and how long does it actually last?

We’ve been using the device for over a week and our impressions are that this compact phone lives up to the battery promises. Asus tells us we should expect 1.9 days of battery life, an odd number, but which we find pretty close to our actual usage.

The Zenfone 9 would easily last us a day and a half without a charger, and if we didn’t push it too hard it could stretch to two full days between charges. Here’s the battery life of the iPhone 13 Pro Max in a tiny 5.9″ form factor. Impressive!

PhoneArena YouTube Video Streaming Battery Test

We also ran our independent battery tests on the Zenfone 9. Before running these tests, we set all devices to the same brightness level to ensure an even playing field. In our YouTube test, the Zenfone 9 scored higher than we thought possible for such a small phone and it also beat the competition easily.

PhoneArena web browsing battery test

Our lighter web browsing test is done over a Wi-Fi connection, as a script browses websites and the phone scrolls at a steady pace. It’s an excellent real-life simulation and the Zenfone 9 clocked an impressive 17 hours and 13 minutes, the best score ever for a compact phone.

PhoneArena 3D Gaming Battery Test

Finally we have our 3D gaming test where we run a popular game on medium settings until the phone dies, and the Zenfone once again outperformed its rivals with 8 hours of battery life. We did notice, however, that using higher graphics settings the phone would speed up a bit faster than larger phones, but that’s probably to be expected.

Does the Asus Zenfone 9 have good battery life?

The short answer is yes”. Despite its mini size, the Zenfone 9 pulls in incredible battery numbers that we haven’t seen in a modern small phone until now. In fact, with average usage, the Zenfone 9 could Well last two full days without a charger, an achievement comparable to phones with the industry’s best battery life like the much larger iPhone 13 Pro Max.

How much battery does the Asus Zenfone 9 have?

The Zenfone 9 has a 4300mAh battery cell inside. That’s a lot of battery for a 5.9-inch phone! By comparison, the 6.1-inch Galaxy S22 only has a 3,700mAh battery cell, and the Zenfone even comes with a headphone jack that many companies have ditched to allegedly make more space for a battery ! Well, Asus certainly proves that you don’t have to take it off to get a big battery in your phone!

Does the Zenfone 9 have wireless charging?

No. Zenfone 9 does not support wireless charging.

Does the Zenfone 9 have reverse wireless charging?

Again, no. You cannot use the Zenfone 9 for reverse wireless charging.

What charger does the Asus Zenfone 9 use?

It comes with an Asus 30W charger included in the box. The charger is black and uses a USB-C connection.

We measured a 0-100% full charge on the Zenfone 9 with this charger taking around 1 hour and 15 minutes.

How fast does Asus Zenfone 9 charge?

The Zenfone 9 reaches a maximum charging speed of 30W. Even if you have a faster charger, you won’t be able to get faster charging speeds on the Zenfone 9.