Brand: MT Star, Quality Beyond Comparison
Bring back full-day battery life on your Redmi Note 11 and Redmi Note 11S with the MT Star BN5D: 5000mAh, BIS certified and made to the original size.
The Redmi Note 11 and Note 11S are among India’s most popular phones, and both use the BN5D battery. The MT Star BN5D is a 5000mAh direct-fit replacement that fixes fast drain, swelling and random restarts.
| Battery model | BN5D |
|---|---|
| Compatible phones | Redmi Note 11, Redmi Note 11S |
| Capacity | 5000mAh typical / 4900mAh rated |
| Nominal voltage | 3.87V |
| Charge voltage limit | 4.45V |
| Battery type | Rechargeable lithium-ion polymer |
| Certification | BIS IS 16046 (Part 2): 2018 and IEC 62133-2: 2017 (R-41280119) |
| Series | MT Star Premium Series |
MT Star supplies batteries for hundreds of phone models to distributors and repair shops across India. Our Premium Series cells use the original form factor and connector, carry BIS certification, and come with easy returns for any manufacturing defect.
The MT Star BN5D battery fits the Redmi Note 11 and Redmi Note 11S. It’s the same battery for all of these models.
This replacement BN5D battery has a capacity of 5000mAh, matching the Redmi Note 11’s original battery.
Yes. It’s certified under BIS IS 16046 (Part 2): 2018 and IEC 62133-2: 2017 (R-41280119) and is made to the original size and connector.
Use a good-quality charger suited to your phone. After fitting, charge it fully and use it normally for the first few cycles so the battery indicator calibrates.
Yes. MT Star supplies distributors and repair shops across India. Contact us to become a distributor.















