Apple customers may have noticed that the iPhone box has become significantly smaller starting with the iPhone 12, when Apple removed some parts from the inside of the box. Like last year, the iPhone 13 series doesn't come with a charger, so the box is smaller.
You can also try wireless charging, as it's supported on all iPhone 13 models. Putting your iPhone 13 on the wireless charger is enough to start charging the battery. A power bank is also an alternative, but you'll need a cable to fully charge your iPhone 13 with a power bank.
Users looking to keep their battery healthy can try to keep the charge around 20% and 72%. Allowing your phone to drain or charge it to its maximum capacity can reduce your battery life. Apple also offers a battery replacement service, so if your battery degrades faster than normal, you can always replace it to keep your iPhone looking like new.