India’s Biggest Mobile
Battery Brand
Battery Brand
Brand: MT Star, Quality Beyond Comparison
4500mAh replacement battery for the Vivo S1 Pro (battery model B-K3). BIS certified, original-size fit, made by MT Star.
Repair shops trust the MT Star B-K3 for the Vivo S1 Pro: a 4500mAh cell made to the original dimensions, so it fits cleanly and charges like new.
| Battery model | B-K3 |
|---|---|
| Compatible devices | Vivo S1 Pro |
| Capacity | 4500mAh typical / 4390mAh 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 |
| Series | MT Star Premium Series |
MT Star supplies batteries for hundreds of phone models to distributors and repair shops across India. Our cells use the original form factor and connector, carry BIS certification, and come with easy returns for any manufacturing defect.
The Vivo S1 Pro uses the B-K3 battery. The MT Star B-K3 is a direct replacement for it.
This MT Star replacement battery has a capacity of 4500mAh.
Yes. It's certified under BIS IS 16046 (Part 2): 2018 and IEC 62133-2: 2017 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.
