Apple AirTags: The Hidden Danger of Rechargeable Batteries

ZDNET Exclusive Investigation – A growing number of Apple AirTag users are unknowingly damaging their devices by using rechargeable LIR2032 batteries instead of the recommended CR2032 cells. This seemingly harmless swap is causing premature device failure, battery leaks, and in some cases, complete AirTag destruction.

The Dangerous Misconception

At first glance, LIR2032 and CR2032 batteries appear identical – same size, same shape, same convenient coin-cell design. But beneath that familiar exterior lies a critical difference that’s destroying AirTags across the country.

“While they fit perfectly into the battery compartment, these rechargeable cells operate on completely different principles,” explains Adrian Kingsley-Hughes, ZDNET’s senior technology analyst. “Users think they’re being eco-friendly and saving money, but they’re actually creating a ticking time bomb for their tracking devices.”

The Technical Breakdown

CR2032 disposable batteries deliver 3 volts with a robust 240mAh capacity – providing approximately one year of reliable AirTag operation. LIR2032 rechargeable alternatives, however, push 3.6 volts while offering only 40mAh capacity – a staggering six times less power storage.

“This voltage difference is critical,” Kingsley-Hughes notes. “AirTags are engineered specifically for 3V CR2032 cells. The higher voltage from LIR2032 cells can stress internal components, while the dramatically reduced capacity means more frequent charging cycles and faster degradation.”

Real-World Consequences

The holiday rental company that inspired this investigation learned this lesson the hard way. After switching to rechargeable batteries to reduce waste, they discovered their AirTags were failing every 2-3 months instead of lasting a full year. More concerning, several devices showed signs of battery leakage and internal corrosion.

“I’ve personally examined multiple AirTags that were damaged by these rechargeable cells,” Kingsley-Hughes reveals. “The electrolyte leakage isn’t just messy – it can permanently damage the circuit boards and tracking components.”

The Warning Signs

Unlike CR2032 batteries that provide predictable, gradual power decline, LIR2032 cells can die suddenly and without warning. This leaves whatever the AirTag is tracking vulnerable to being permanently lost.

Additionally, these rechargeable batteries can be discharged beyond their safe limits, making them impossible to recharge and potentially causing them to swell or leak corrosive chemicals inside the AirTag housing.

The Expert Recommendation

Despite the environmental appeal of rechargeable batteries, Kingsley-Hughes strongly advises against using LIR2032 cells in AirTags. “The risks far outweigh any perceived benefits,” he states. “You’re looking at more frequent battery changes, unpredictable failures, and potential device damage.”

Instead, he recommends using high-quality CR2032 batteries with built-in safety features. “Energizer Color Alert cells are my top choice,” he says. “They include multiple safety mechanisms that prevent accidental ingestion and provide reliable, long-lasting power.”

The Bigger Picture

This issue highlights a broader challenge in consumer electronics: the temptation to modify devices with seemingly compatible alternatives. While rechargeable batteries make sense for many applications, AirTags require the specific characteristics of CR2032 cells to function safely and reliably.

For users concerned about battery waste, Kingsley-Hughes suggests proper recycling programs for spent CR2032 cells rather than risky battery substitutions. “It’s better to recycle responsibly than to risk damaging an expensive tracking device,” he concludes.

viral tags and phrases:

• Apple AirTags destroyed by wrong batteries
• Dangerous battery swap killing your AirTags
• Rechargeable batteries leaking inside AirTags
• Don’t make this expensive AirTag mistake
• Eco-friendly battery choice that’s actually harmful
• AirTag battery horror stories
• The battery that’s secretly damaging your tracker
• Why your AirTag keeps dying suddenly
• Battery experts warn against LIR2032 in AirTags
• The hidden danger in your Apple accessories
• AirTag users beware: this battery will destroy your device
• Save money, lose your AirTag: the rechargeable trap
• Tech expert reveals AirTag battery disaster
• Your “green” battery choice might cost you hundreds
• The battery swap that’s ruining AirTags nationwide
• Apple AirTag battery nightmare
• Don’t trust these batteries in your AirTag
• The shocking truth about AirTag batteries
• How to protect your AirTag from battery damage
• The battery mistake thousands of AirTag owners are making

,