BLP673 / BLP817 Original-Capacity Replacement Battery (4230mAh)

The BLP673 is one of the most widely circulated internal Lithium-ion Polymer replacement batteries in Bangladesh, powering a massive fleet of Oppo’s and Realme’s legacy budget bestsellers. Since these compatible models are heavily used as daily drivers, an aging factory cell usually displays distinct wear patterns: fast battery percentage drops when using mobile data, thermal heating near the rear camera layout, or the system getting trapped in an infinite loop on the Oppo/Realme startup animation. Swapping it out for a fresh BLP673 cell completely stabilizes your device’s multi-day standby runtime.

• Battery Model: BLP673

• Battery Type: Lithium-ion Polymer (Li-Po)

• True Capacity: 4230 mAh (Typical) / 4100 mAh (Rated)

• Standard Voltage: 3.85V

• Charging Voltage Limit: 4.4V

• Safety Layout: Fabricated with a dual-IC Protection Circuit Module (PCM). This micro-chip acts as a safety firewall that balances internal cell temperatures, blocks voltage overloads from cheap chargers, and helps eliminate toxic structural bloating.

• Device Compatibility: This exact 4230mAh structural footprint and flex connector layout precisely fit:

  • Oppo A3s / Oppo A5 / Oppo A5s / Oppo A7

  • Oppo A12 / Oppo A12s / Oppo A12e

  • Oppo A31 (2020 Edition)

  • Oppo A11k

  • Realme C1 / Realme C1 (2019)

  • Realme 2 / Realme 3i