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Rectangular black Dell laptop battery with six cells visible

DELL

DELL 11.1V 5200mAh Lithium-Ion Laptop Battery 451-BBJB 451-BBIY 451-BBIZ

SKU CH-42TF-VGKFN

11.1 V lithium-ion replacement battery delivers 5200 mAh capacity in a six-cell design for compatible Dell laptops

  • CompatibilityCompatible with Dell 451-BBJB 451-BBIY 451-BBIZ
  • Battery TypeLithium-Ion
  • Delivers 5200mAh capacity for extended runtime
  • 1V output matches Dell laptop requirements
  • Six premium cells provide reliable lithium-ion power
  • CE and RoHS certified for safety compliance
  • 100% compatible with Dell 451-BBJB, 451-BBIY, 451-BBIZ

Direct Replacement for Dell 451-BBJB

This 11.1V lithium-ion battery replaces Dell part numbers 451-BBJB 451-BBIY and 451-BBIZ. It uses premium six-cell construction rated at 5200mAh capacity. The unit is brand new and carries CE and RoHS certification.

Suits owners of those exact Dell models needing

Buyers who cannot match their original battery to the product photos should look elsewhere because fit is not guaranteed across every chassis. Anyone requiring a different voltage or connector layout will not be served by this pack.

Simple swap once the correct match is confirmed

Installation consists of removing the old pack and seating this one in the same bay. The most common issue is ordering without comparing the original battery to the supplied images, which leads to returns for physical incompatibility.

Highlights

  • Delivers 5200mAh capacity for extended runtime
  • 1V output matches Dell laptop requirements
  • Six premium cells provide reliable lithium-ion power
  • CE and RoHS certified for safety compliance
  • 100% compatible with Dell 451-BBJB, 451-BBIY, 451-BBIZ

Specifications

CompatibilityCompatible with Dell 451-BBJB 451-BBIY 451-BBIZ
Battery TypeLithium-Ion

Questions about this item

Will this 11.1V 5200mAh battery fit my Dell laptop that originally used part numbers 451-BBJB, 451-BBIY or 451-BBIZ?

Yes — it is built to match those three Dell part numbers, so the connector, shape and voltage line up with the original battery.

Can I keep using my existing Dell AC adapter with this replacement battery installed?

The adapter charges the laptop at the same 11.1V the original pack expects, so your current charger will work without any change.

How can I confirm the new 6-cell pack is delivering its rated 5200mAh capacity after I install it?

Run a full charge–discharge cycle in the BIOS battery calibration tool or Dell Power Manager; the reported full-charge capacity should read close to 5200mAh.

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