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Rectangular lithium battery pack, matte finish, labelled 4500mAh 3.85V

Estry

Estry SM-G990W standard battery 4500mAh 3.85V

SKU CH-DFK4-85ZFD MPN SM-G990W

A 4500mAh lithium replacement battery for the Galaxy S21 FE 5G with overcharge and short-circuit protection

  • TypeBatteries
  • Battery Pack1-pack
  • Battery TypeLithium
  • Battery Capacity4500mAh
  • Battery Voltage3.85
  • 4500mAh capacity extends daily usage
  • 85V lithium cell matches original specifications
  • Built-in protection guards against overcharge and short circuits
  • Certified to ISO9001, RoHS, CE and UN38.3 standards
  • Fits Galaxy S21 FE 5G models including SM-G990W

Direct replacement battery for Galaxy S21 FE 5G

This Estry lithium battery is built to the original specifications for the Samsung Galaxy S21 FE 5G series, including models SM-G990W, SM-G990U, SM-G990U1, SM-G990E, SM-G990B and SM-G990B/DS. It matches the OEM part number EB-BG990ABY and integrates overcharge, over-discharge, over-voltage and short-circuit protection. The cell is certified to ISO9001, RoHS, CE, UN38.3 and MSDS standards.

Suits owners restoring factory runtime

Buyers who need a drop-in replacement for a worn or swollen original cell will find the correct voltage and connector layout here. It is not for users of other Samsung models, other brands, or devices that require a higher capacity than the specified 4500mAh rating. Anyone unsure of their exact model number should verify before ordering.

Delivers the same 4500mAh capacity as the original

At 3.85V and 16.56Wh the cell provides the standard runtime the handset was designed for, supporting typical daily use on a single charge. Heavy workloads such as extended gaming or continuous 5G tethering will deplete the charge faster, requiring a mid-day top-up. The physical dimensions of 75.6 x 64.0 x 5.0mm and 108.0g weight ensure a proper fit inside the sealed chassis.

Highlights

  • 4500mAh capacity extends daily usage
  • 85V lithium cell matches original specifications
  • Built-in protection guards against overcharge and short circuits
  • Certified to ISO9001, RoHS, CE and UN38.3 standards
  • Fits Galaxy S21 FE 5G models including SM-G990W

Specifications

TypeBatteries
Battery Pack1-pack
Battery TypeLithium
Battery Capacity4500mAh
Battery Voltage3.85

Questions about this item

Does this 4500mAh battery require the original EB-BG990ABY part number to fit my phone?

Yes, it replaces the EB-BG990ABY and matches the 3.85V, 4500mAh specification for the listed S21 FE 5G models.

Will the 75.6 x 64.0 x 5.0mm dimensions align with the existing adhesive strips in an SM-G990B?

The dimensions match the original battery profile, so the factory adhesive layout in the SM-G990B will line up correctly.

After installation, how can I confirm the 16.56Wh cell is reporting capacity correctly?

Check the battery settings menu; it should show approximately 4500mAh and 3.85V nominal voltage when fully charged.

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