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Rectangular lithium-ion battery with Nokia branding, 3.8V 2500mAh

Nokia

Nokia BV-T5C 3.8V 2500mAh cell phone battery for Lumia 640 RM-1073

SKU CH-C6SP-NB8WR MPN BV-T5C

A 3.8V 2500mAh lithium-ion replacement battery built for the Nokia Lumia 640 RM-1073

  • TypeReplacement Battery
  • Compatible Phone ManufacturerNOKIA
  • Compatible Phone Model640
  • ChemicalLi-Ion
  • Volt3.8 Volt
  • Amp2500mAh
  • Genuine OEM replacement keeps your Lumia 640 running reliably
  • 2500mAh capacity at 3.8V delivers 9.5Wh of talk and browse time
  • Li-Ion chemistry with integrated microchip prevents overcharging and extends cycle life
  • Ready for RM-1073 handset with no adapter or modification required
  • Brand-new cell arrives at full spec for immediate use

Compatible Replacement Battery

This Nokia BV-T5C battery is a new lithium-ion cell rated at 3.8V and 2500mAh. It is built as a direct replacement for the Lumia 640 RM-1073 handset. The 9.5Wh capacity restores the original runtime for calls, messaging and browsing. It suits owners who need a spare or a fresh unit for a worn original.

Upgrade From Depleted Original

The pack replaces the factory battery when it no longer holds a useful charge. Swapping it returns the phone to its designed talk and standby times without hardware modification. The jump is worth it when the existing cell drains quickly or shuts down under load. It is not for users who need more capacity than the original 2500mAh design provides.

Li-Ion Chemistry Limits

The lithium-ion chemistry delivers 3.8V nominal voltage with an integrated microchip that prevents overcharging. The supplier notes that optimal performance may require three to five full charge cycles after installation. Initial charging takes several hours before the first use. The cell is not for devices that require a different voltage, chemistry or form factor.

Highlights

  • Genuine OEM replacement keeps your Lumia 640 running reliably
  • 2500mAh capacity at 3.8V delivers 9.5Wh of talk and browse time
  • Li-Ion chemistry with integrated microchip prevents overcharging and extends cycle life
  • Ready for RM-1073 handset with no adapter or modification required
  • Brand-new cell arrives at full spec for immediate use

Specifications

BrandNOKIA
SeriesLumia
ModelRM-1073
TypeReplacement Battery
Compatible Phone ManufacturerNOKIA
Compatible Phone Model640
ChemicalLi-Ion
Volt3.8 Volt
Amp2500mAh
Output9.5Wh

Questions about this item

Will this BV-T5C battery fit inside the Lumia 640 RM-1073 without modification?

The BV-T5C is built to the exact dimensions of the original Lumia 640 RM-1073 battery, so it seats securely in the phone’s battery compartment with no trimming or adapters required.

What is the correct first-charge procedure for this 3.8 V Li-ion cell?

Charge the battery to 100 % before first use, ignoring the phone’s “full” indicator; the initial charge takes about 5-6 hours, then run through 3-5 full drain-to-5-10 % cycles for optimal capacity.

When should I replace this 2500 mAh battery?

Replace the BV-T5C when talk time, standby time or charge retention drops noticeably below the original 9.5 Wh performance, typically after several hundred charge cycles.

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