Apple AirTag Wireless Tracker’s Battery - CR2032

Apple’s spring online special event was held not long ago. It released iPhone 12 purple color, new AirTag, new TV 4K, new iMac and iPad Pro with M1 processor.

Ten years ago, Apple devices had “find” function already, and users can use it to find the iPhone’s location. Today, this huge end-to-end encrypted anonymous network already contains 1 billion Apple devices, which can help users find out iPhone, iPad, Mac. So, That’s the reason why Apple will launch the “AirTag.”

AirTag is coin-sized that can be used alone or with various cases to hang in your bag. It can be placed on frequently lost items, such as keychains, backpacks, wallets, etc. So the users can use the AirTag to search when those items are lost. As for the price, AirTag is priced at $29 for onepack, and $99 for four pack. 

AirTag combines Bluetooth and UWB technologies. It can use the built-in Bluetooth chip to send out signals, and then be detected by nearby Apple devices. The devices will send AirTag’s approximate location to iCloud, let people know where the missing item is. The built-in Apple U1 ultra-wideband chip also enables AirTag to have accurate location ability. In a certain range, the phone will indicate the direction of AirTag and display the accurate distance. But the U1 chip only supports iPhone 11 series, iPhone 12 series.

AirTag has a built-in battery so that it can be used independently. Apple designed AirTag as a replaceable battery structure and uses a common standard battery - CR2032. In the case of low battery, the iPhone will notify the user to replace the battery in time. AirTag supports more than one year of battery life if you play the sound four times a day and accurately search it one time a day. After long-term use, users can replace the battery by themselves to maintain the battery life. 

It can be seen from the side of AirTag that itadopts a two-layer structure with a metal cover on it. Besides that, the metal cover engraved with Apple’s brand logo in the middle area, and the circle engraved with “Bluetooth LE,” “Ultra Wideband,” “AirTag,” “Apple design in California” and “Assembled in China.” The other side is the plastic body, which can add engraving on the Apple official website. The circular design can maximize the use of space and place a larger battery.

In order to make it more convenient for users to replace the battery, the AirTag adopts replaceable battery design. The metal cover can be easily removed by rotating it counterclockwise. There are three clips around the metal cover. A rotating bayonet fixes the cover.

The bottom of the metal cover is equipped with an elastic metal plate, which is used to fix the battery to prevent vibration and fall. It’s also marked with a positive mark, which is convenient for distinguishing the positive and negative directions when replacing the battery.

The AirTag battery holder has three sliding grooves around it for fixing the metal cover. If the user installs the battery in the opposite direction, the metal cover cannot be fixed. There are two positive contacts for connecting button batteries, which are set on the side and one negative contact is set on the bottom. Even if the battery is reversed, it is only connected to the positive contacts without damaging the AirTag.

The built-in button battery in AirTag comes from Panasonic, model CR2032, C means the chemical battery system with lithium metal as the negative and manganese dioxide as the positive, R means that the battery shape is cylindrical, with the diameter of 20mm and the thickness of 3.2mm. Voltage is 3.0V, made in Indonesia. Users can buy CR2032 button batteries from other brands to replace it, but needs to pay attention to avoid purchasing the 3.6V LIR2032 rechargeable button battery. Thanks to the replaceable battery design, AirTag is not like AirPods; it can be used for many years because of replaceable battery. If you’re interested in what kind of button batteries that support AirTag, and which brand will be the best. Stay tuned for our updates.

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