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Black rectangular Li-ion cell phone battery with smooth finish

Cameron & Co

Cameron & Co DS-CS-NK642SL cell phone battery 2.4 Ah 3.8 V

SKU CH-9JYQ-VJG2C MPN DS-CS-NK642SL

Replacement Li-ion battery for Nokia Lumia 640 models, 2.4 Ah at 3.8 V

  • Reliable power for Nokia Lumia 640 models
  • 4 Ah capacity supports extended daily use
  • 8 V lithium-ion chemistry matches original specs
  • 12 Wh energy rating ensures consistent performance
  • Slim 5.20 mm profile fits handset perfectly

Compatible Lumia 640 replacement

The Cameron & Co DS-CS-NK642SL is a lithium-ion cell phone battery built for the Nokia Lumia 640 Dual SIM, Lumia 640 LTE and Microsoft Lumia 640 Dual SIM. It matches the original BV-L5C part number and delivers a 2.4 Ah capacity at 3.8 V. The pack is supplied new and 100% OEM compatible.

Upgrade from worn original

This battery replaces an ageing or swollen factory cell that no longer holds a full day of charge. The jump is worth it when the phone shuts down early, runs hot during calls or shows physical bulging. It restores the original 9.12 Wh energy rating without modifying the handset.

Steady output under daily use

Under sustained load the lithium-ion chemistry maintains a stable voltage curve through talk time, navigation and background sync. The slim 5.20 mm profile fits the existing compartment without forcing the cover. No performance drop is seen during prolonged discharge cycles.

How it compares

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

Price $16.99
Pricier than about 65% of the 868 comparable items (median $14.99).

Specifications

Product
Brand nameCameron Sino
Model nameDS-CS-NK642SL

Questions about this item

What are the exact dimensions of this 93.50 x 37.30 x 5.20 mm battery for the Lumia 640?

The battery measures 93.50 mm long, 37.30 mm wide and 5.20 mm thick, matching the original BV-L5C form factor for the Lumia 640 series.

Which way does the 3.8 V Li-ion cell insert into the Nokia Lumia 640, and what step is often missed?

Align the gold contacts with the phone's connector pins, slide the battery in contact-side first, then press firmly until the latch clicks; the missed step is not securing the latch fully.

When should I replace this 2400 mAh battery in my Microsoft Lumia 640 Dual SIM?

Replace it when run-time drops noticeably below a full day, the phone shuts down with charge remaining, or the back cover bulges from cell swelling.

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