• Published on 2025-12-11 • Author: gooyeegsm • View: 195

As nearing the end of the year, looking back at our company's battery shipments, the reigning champion is undoubtedly--- Diagnostic Battery.


I'm writing this article to formally introduce this battery for two reasons: firstly to better serve our customers; And secondly to its significant commercial value and positive market feedback. 


So what is a diagnostic battery? What is its function? Why are customers so keen to buy diagnostic battery? How are they different from ordinary battery? This article will reveal the answers to these questions.


I) What is Diagnostic Battery?

Simply put, diagnostic battery is a service feature offered by Apple, primarily used to collect various information to help Apple improve its after-sales service in a targeted manner.



II) Why is diagnostic battery necessary?


1) To help Apple improve its after-sales service.
2) To determine if the battery is original.
3) To resolve pop-up issues, monitor battery performance, and provide accurate health information.
4) Significant commercial value potential. Diagnostic battery shown " Genuine " can help customers secure more reasonable profits.



(III) How to run diagnostic battery?


For the products we currently ship: 

Before running the diagnostic test, the following conditions must be met:
1) Ensure your device is connected to the Wi-Fi.
2) Ensure your device has at least 20% battery charge.
3) Ensure your device is running iOS 18.1 or later.


Steps: Power off and install diagnostic battery- Settings, About, Parts & Repair History - Restart and complete repair - Wait for restart - Connect to network, wait for iPhone configuration to complete - Restart, complete.



(iv) What are the possible results for diagnostic battery?


Diagnostic battery will ultimately produce two results: one showing "Used" and the other showing "Genuine" as shown in the image:



(V) Comparison with Ordinary Battery?


We will discuss the differences from software identification, price, and user experience.


Regarding software identification, diagnostic battery that can run diagnostic are perfectly recognized by the phone's system. However, third-party ordinary battery are often detected by the system and displayed as "Unknown Part." Once this message appears, not only will the battery health not display correctly, but pop-up message may also appear intermittently reminding you that the battery has a problem.


Regarding price, original diagnostic battery that are relatively expensive. For example, for iPhone 15 Pro Max, the original diagnostic battery replacement cost is as high as $99 (about 697.95 RMB); the price shown that "Genuine" diagnostic battery is generally $22.69 (about 160 RMB), and the price shown that "used" diagnostic battery is generally $9.92 (about 70 RMB). Ordinary battery (pure cobalt 1:1) generally cost $8.22 (about 58 RMB). 



Regarding user experience, diagnostic battery offer better compatibility with iPhone, providing stable power support and ensuring smoother operation. Furthermore, the diagnostic function allows users to monitor the battery's health at any time and take proactive measures. Third-party ordinary battery, on the other hand, vary in quality; some may experience short battery life, slow charging, excessive overheating, and even affect the phone's lifespan.




In short, from the consumer's perspective, diagnostic battery is an after-sales service offered by Apple for original battery that have suffered excessive wear and tear. Considering both consumer psychology factors and cost-effectiveness, customers tend to prefer using diagnostic battery over ordinary third-party batteries.


We welcome everyone to actively participate in discussions about various industry information. Thank you!


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