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Rectangular black lithium-polymer phone battery, 85 by 64 by 3.9 mm

Cameron & Co

Cameron & Co DS-CS-MUR520SL cell phone battery 3.9 Ah Li-Polymer Black

SKU CH-5364-YZAR8 MPN DS-CS-MUR520SL

Replacement lithium-polymer battery for Xiaomi Mi Max, Note 5 and Redmi 5 series with 3.9 Ah capacity

  • Compatible with Xiaomi Mi Max, Note 5 and Redmi 5 Plus models
  • 9 Ah lithium-polymer capacity delivers long talk and standby time
  • Slim 3.90 mm profile fits original battery compartment precisely
  • Replaces OEM part number BN44 with 100 % compatibility
  • Brand-new cell manufactured by Cameron Sino to factory specifications

Compatible Xiaomi Models

This replacement battery fits Xiaomi Mi Max, Note 5, Redmi 5 Plus and Redmi 5 devices including the Vince and MEE7 variants. It matches original part number BN44 for direct compatibility. The lithium-polymer cell delivers 3.9 Ah capacity in a black housing.

Upgrade From Degraded Original

It replaces a worn or swollen factory cell that no longer holds a useful charge. The jump is worth it when the phone shuts down early, struggles with standby time or shows physical battery expansion. A fresh 3900 mAh unit restores the runtime the handset had when new.

Capacity And Everyday Headroom

The 15.02 Wh rating supports a full day of typical mixed use including calls, messaging and moderate screen time. Heavy gaming or continuous navigation will drain the cell faster and may require a midday top-up. The slim 3.90 mm profile fits the original compartment without modification.

How it compares

Measured against everything we stock in Replacement Phone Batteries, at today’s prices. Recalculated every night.

Price $14.99
Typical for this category: the median of 868 items is $14.99.

Specifications

Product
Brand nameCameron Sino
Model nameDS-CS-MUR520SL

Questions about this item

Will the 85.45 mm by 64.00 mm by 3.90 mm battery fit inside my Redmi Note 5?

Yes, the dimensions match the original BN44 cell used in the Redmi Note 5, Redmi 5 Plus and Mi Max models listed.

What is the tricky step when replacing the BN44 battery in a Redmi 5 Plus?

The adhesive strips under the old cell must be fully released with heat or isopropyl alcohol before lifting, otherwise the flex cable tears.

How often will the 3.9 Ah Li-Polymer pack need replacing under daily charging?

Expect two to three years before runtime drops noticeably; swap when the phone shuts down above 20 % indicated charge.

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