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Rectangular black Li-Polymer phone battery, 79.30 by 66.30 by 4.20 mm

Cameron & Co

Cameron & Co DS-CS-MUM411XL 4000mAh cell phone battery

SKU CH-DW4Z-HSXE5 MPN DS-CS-MUM411XL

A 4000 mAh lithium-polymer replacement battery compatible with Xiaomi Note 4 and Redmi Note 4 models using BN41, BN41H or BN41L cells

  • Li-Polymer chemistry delivers stable 3.85 V output
  • 4000 mAh capacity supports extended daily use
  • 40 Wh energy rating matches original BN41 specification
  • Slim 4.20 mm profile fits Xiaomi Note 4 chassis
  • 100 % OEM compatible with BN41, BN41H, BN41L part numbers

What this battery fits

This Cameron Sino DS-CS-MUM411XL cell phone battery is built for the Xiaomi Note 4 and Redmi Note 4 handsets. It replaces original part numbers BN41, BN41H and BN41L. The pack uses Li-Polymer chemistry rated at 3.85 V and 4000 mAh. It ships new in black.

Check before ordering

Confirm your phone model is exactly Note 4 or Redmi Note 4 and that the existing battery label reads BN41, BN41H or BN41L. Verify the pack dimensions of 79.30 x 66.30 x 4.20 mm match the space inside your device. Ensure you are comfortable opening the handset or have a repair shop that can perform the swap.

Who this suits and who should look elsewhere

This unit suits owners of the listed Xiaomi models who need a direct 4000 mAh replacement and are prepared to install it themselves or via a technician. Buyers with different phone models, different original part codes, or who require a higher capacity than 4000 mAh should look elsewhere.

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-MUM411XL

Questions about this item

Does the DS-CS-MUM411XL come with any tools or adhesive strips, or do I need to buy them separately?

The package contains one 4000 mAh 3.85 V Li-Polymer cell in black; installation tools and adhesive are not included and must be sourced separately.

My original battery is marked BN41H — is this the only version that fits, or are BN41 and BN41L also compatible?

The DS-CS-MUM411XL replaces all three part numbers — BN41, BN41H and BN41L — so any of those original batteries can be swapped for this single model.

The label says 4000 mAh and 15.40 Wh; what does that translate to in actual daily use on a Redmi Note 4?

At 3.85 V the cell stores 15.40 Wh, which typically delivers a full day of mixed use on a Note 4, though screen brightness, signal strength and background apps will change the exact runtime.

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