Tech Tips: What does the R code on your phone charger mean? 99% of people ignore it, but you'll be surprised to learn the truth.
- bySherya
- 11 Apr, 2026
Tech Tip: If you've ever looked carefully, there's a special code written on the back of your phone charger that starts with R. This is followed by a dash and some numbers.
Nowadays, when you buy a smartphone, you often don't find a charger in the box. Therefore, people have to purchase a separate charger, and this is where the real problem begins. The market is flooded with cheap and counterfeit chargers, making it difficult to understand which charger is reliable and which is not. Meanwhile, a simple code that most people overlook can be of great help.
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If you've ever looked carefully, there's a special code written on the back of phone chargers that starts with R, followed by a dash and some numbers. This isn't just any number, but an official registration code. This code is issued by the Bureau of Indian Standards (BIS). This certification is required for electronic products sold in India. It means the charger meets the safety and quality standards set by the government.
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This R code indicates that your charger is registered and certified. A charger bearing this code complies with safety standards and is not counterfeit or of poor quality.
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On the other hand, chargers that don't have this code or have the wrong one can be risky and pose a threat to your phone as well as your safety.
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If you want to be absolutely sure, you can also check this code online using the BIS Care app or the official BIS website. Simply enter the code on the charger, and all the relevant information will be displayed. This will instantly tell you whether the product is genuine or not.
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Checking this code can help ensure your charger is safe and can be used safely for a long time. Using the correct charger significantly reduces the risk of problems like overheating, short circuits, or electric shock. It also protects your smartphone's battery and performance.
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The next time you buy a new charger, pay more attention to its R code than its price. This tiny number can prove crucial to both your safety and your device's safety.


