In September 2021 Apple introduced the iPhone 13 and its Pro version, along with the corresponding mini and Max models. The list of innovations is relatively small, but the innovations that do appear are in the right places: including an adaptive 120Hz display (at least in the Pro models) and even more battery power.

Since the iPhone 11, the battery life of the iPhone has increased significantly every year, but Apple made the biggest leap in 2021: The capacity of the built-in battery increased by up to 19 percent and, in conjunction with the continuous optimization of the power-draining components, this means you can expect good improvements in battery life for the 2021 iPhones.

The iPhone 13 Pro Max, which has the biggest battery of all due to its size, can power through up to 25 hours of streamed video playback (according to Apple's tests). When streaming video the battery life of its predecessor, the 12 Pro Max, was only 12 hours.

Our own tests, which put a significant strain on the processor, also prove that the new iPhone is a battery monster. The iPhone 13 Pro Max ran for 11 hours 41 minutes (701 minutes). This was three hours longer than the iPhone 12 Pro's time (8 hours and 41 minutes, or 521 minutes), which was already very good.

But no matter how large and durable a battery is - sooner or later it has to be charged. And this can take a long time, especially with large batteries. However, you can minimize the time required if you make the most of the iPhone's fast charging function. This means using a charger that takes full advantage of the maximum charging speed. How fast the iPhone 13 charges depends on the model and the charging technology used. Many users prefer wireless charging, but the fastest way is still with a cable.

Read our iPhone 13 reviews:

Method 1: Charge by cable - the fastest way to charge

The fastest way to charge your iPhone 13 is via the Lightning port. But in order to benefit from the maximum charging speed, you need an appropriate power supply.

All iPhones since the iPhone 8 have supported up to 20 watts of charging power, although you need to purchase a 20W adapter or higher (as one isn't included in the box). You can buy a corresponding charger yourself from Apple or another manufacturer. Read: What power adapter/plug/charger do I need for my iPhone?

When choosing your power adapter consider the following: It needs to support at least 20 watts of charging power. It needs to come with the correct port - if you want to charge your iPhone with the included Lightning to USB-C cable, the power adapter must have a USB-C port.

Undoubtedly you will own an old power adapter from a previous iPhone, you will most likely be able to use this with your new iPhone. However, how fast your iPhone charges will depend on the performance of the power supply - your iPhone will not charge as fast if you are using a power adapter with an old USB-A port, for example.

iPhone 13 Pro Max charges even faster

While officially all iPhone 13 models charge with a maximum of 20 watts, have found that the iPhone 13 Pro Max can charge at up to 27 watts. If you own this model, a third-party power supply with 30 watts could offer more than the official 20W charger from Apple.

Method 2: Charge with MagSafe

With the iPhone 12 Apple introduced a new charging product for the iPhone. MagSafe is a new standard that allows accessories to be attached to the iPhone via magnets on the rear. This not only works with cases and wallets, but also with chargers. The MagSafe charger is attached to the back of the iPhone and charges the device via induction. MagSafe has several advantages over classic wireless chargers, including that the charging performance is higher.

Via MagSafe, all iPhone 12 and 13 models can charge with a maximum of 15 watts. This is twice the speed offered by wireless charging via the Qi standard.

Method 3: Charge with a Qi charger - convenient but slow

Like almost every current high-end smartphone, recent iPhones also support wireless charging via the Qi standard.

Compared to MagSafe, the charging process takes noticeably longer. The maximum charging power is 7.5 watts, which is half as fast as with MagSafe.

However, there are benefits: Qi chargers are compatible with almost all devices that support wireless charging. So you can provide a power source for your other devices and for your Android friend. Qi chargers are also available from many different manufacturers, here are some recommendations:

Also, if you want to charge an Apple Watch and/or AirPods in addition to your iPhone, there are special charging stations where you can charge several devices at the same time, such as this one: 

This article originally appeared on Macwelt. Translation by Karen Haslam.