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Rectangular black lithium-ion 9-cell notebook battery with label showing model 51J0500-AX

Axiom

Axiom 51J0500-AX laptop battery

SKU CH-GWGW-M03SW MPN 51J0500-AX

A 9-cell lithium-ion replacement battery compatible with Lenovo ThinkPad notebooks

  • Battery typeLithium-Ion
  • Product typeConsumer Electronics
  • Compatible withLenovo ThinkPad Notebooks
  • 100% OEM compatible fit for Lenovo ThinkPad notebooks
  • 9-cell lithium-ion design extends unplugged runtime
  • Manufactured with quality components for reliable battery life
  • Direct replacement for Lenovo part 51J0500
  • Ready to install with no extra configuration needed

Direct Replacement for Lenovo ThinkPad

The Axiom 51J0500-AX is a new lithium-ion notebook battery built to match the original specifications for compatible Lenovo ThinkPad models. It uses a nine-cell design to deliver reliable mobile power for daily workloads.

Suits Users Needing a Factory-Match Cell

This unit fits owners who want a direct OEM-compatible replacement without modifying their chassis or power management. Buyers who require a different cell count, voltage, or form factor should look at other options.

Drops Into the Existing Battery Bay

The pack installs in the standard ThinkPad battery compartment and connects to the stock charging circuit, so no extra cables or adapters are required. It frees the notebook from wall power for extended mobile sessions.

How it compares

Measured against everything we stock in Laptop Chargers & Batteries, at today’s prices. Recalculated every night.

Price $101.99
Pricier than about 90% of the 27,790 comparable items (median $30.99).

Specifications

Product
Brand nameAxiom
Model name51J0500-AX
Product typeConsumer Electronics
Power
Battery typeLithium-Ion
Size & build
Shipping weight0.34 kg
Package size305 × 229 × 57 mm
Compatibility
Compatible withLenovo ThinkPad Notebooks

Questions about this item

Which Lenovo ThinkPad models accept the 51J0500-AX battery?

This 51J0500-AX battery is built as a 100% OEM compatible replacement for Lenovo ThinkPad notebooks that originally used the 51J0500 part number.

Will the 9-cell lithium-ion design fit in the same bay as my old 6-cell pack?

The 9-cell lithium-ion form factor matches the standard ThinkPad battery bay, so it seats in the same slot without modification.

How do I confirm the 51J0500-AX is charging correctly after installation?

Insert the battery, connect the AC adapter, and verify the ThinkPad power manager shows the 51J0500-AX charging to 100% capacity.

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