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Battery Brand
Battery Brand
Brand: MT Star, Quality Beyond Comparison
2900mAh replacement battery for the Oppo A57 and Oppo A39 (battery model BLP619). BIS certified, original-size fit, made by MT Star.
The MT Star BLP619 is a 2900mAh replacement battery for the Oppo A57 and Oppo A39. It brings back the all-day battery life the phones were bought for.
| Battery model | BLP619 |
|---|---|
| Compatible devices | Oppo A57, Oppo A39 |
| Capacity | 2900mAh typical / 2820mAh rated |
| Nominal voltage | 3.85V |
| Charge voltage limit | 4.4V |
| Battery type | Rechargeable lithium-ion polymer |
| Certification | BIS IS 16046 (Part 2): 2018 and IEC 62133-2: 2017 |
| Series | MT Star Premium Series |
Every MT Star Premium Series battery is made to the original size and connector, so it fits like the original. Each cell is BIS certified and tested for safe, stable output, and manufacturing defects are covered by easy returns.
The MT Star BLP619 battery fits the Oppo A57 and Oppo A39.
This MT Star replacement battery has a capacity of 2900mAh.
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.
Common signs are fast draining, sudden shutdowns at 10-30%, heating while charging, or a swollen battery lifting the back panel.
Yes. For phones with glued backs we recommend fitting by a trained mobile repair technician.
