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Rectangular black lithium-ion laptop battery with four cells and label showing 14.8V 41Wh

DELL

DELL 14.8V 41Wh 4-Cell Lithium-Ion Battery for Vostro 2421 2521 P37G P28F P17E P40F

SKU CH-BKZ9-7S1VP

A 14.8 V, 41 Wh, four-cell lithium-ion battery compatible with Dell Vostro 2421, 2521, P37G, P28F, P17E and P40F models

  • CompatibilityCompatible with Dell Vostro 2421 2521 P37G P28F P17E P40F
  • Battery TypeLithium-Ion
  • 8V lithium-ion chemistry delivers stable power for compatible Vostro models
  • 41Wh capacity extends runtime between charges for longer work sessions
  • Four premium-grade cells provide dependable energy density in a compact pack
  • 100% compatibility verified for Vostro 2421, 2521, P37G, P28F, P17E and P40F
  • CE and RoHS certification confirms safety and environmental compliance

Compatible Dell Vostro Models

This 14.8V lithium-ion battery fits Dell Vostro 2421 and 2521 laptops. It also supports part numbers P37G, P28F, P17E and P40F. Buyers who need a replacement for a different Dell series cannot use this unit.

Four-Cell 41Wh Design

The pack uses four premium cells to deliver 41Wh of capacity. This cell count and energy rating determine the runtime you can expect between charges. Users who require a higher-watt-hour pack for longer unplugged sessions will not find that here.

14.8V Lithium-Ion Interface

The battery operates at a fixed 14.8 volts using lithium-ion chemistry. It connects only to laptops designed for that exact voltage and physical layout. Systems expecting a different voltage or connector shape will not accept it.

Highlights

  • 8V lithium-ion chemistry delivers stable power for compatible Vostro models
  • 41Wh capacity extends runtime between charges for longer work sessions
  • Four premium-grade cells provide dependable energy density in a compact pack
  • 100% compatibility verified for Vostro 2421, 2521, P37G, P28F, P17E and P40F
  • CE and RoHS certification confirms safety and environmental compliance

Specifications

CompatibilityCompatible with Dell Vostro 2421 2521 P37G P28F P17E P40F
Battery TypeLithium-Ion

Questions about this item

How many charge cycles will the 4-cell 41Wh lithium-ion pack deliver before capacity fades?

The supplier rates the pack for up to 100 full charge cycles under normal use before noticeable capacity loss.

What thermal or power limit appears first when the battery runs continuously at 14.8V?

Sustained load triggers the built-in protection circuit, which caps output current to keep cell temperature within safe limits.

How much fan noise or heat does the replacement battery add during all-day operation?

The battery itself is passive and silent; any extra heat comes from the laptop's own cooling system, not the pack.

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