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Rectangular black lithium-ion laptop battery with smooth finish

Cameron & Co

Cameron & Co DS-CS-AUN591NB laptop battery 11.4V 4000mAh

SKU CH-95YX-43743

Lithium-ion replacement battery for Asus N591LB, Q551, Q551L and Q551LN models, 11.4 V 4000 mAh capacity

  • Product typeBattery
  • Reliable power for Asus N591LB, Q551L and Q551LN models
  • 4 V 4000 mAh lithium-ion chemistry delivers 45.60 Wh capacity
  • Slim 10.38 mm profile fits original battery bay precisely
  • Replaces OEM part numbers 0B200-01050000, 0B200-01050000M and B31N1402
  • Brand new Cameron Sino cell with 100 % OEM compatibility

Direct replacement for Asus N591LB and Q551 series

This Cameron & Co lithium-ion battery is built for Asus models N591LB, Q551, Q551L and Q551LN. It matches the original 0B200-01050000 and B31N1402 part numbers and arrives new with 100 percent OEM compatibility. The black pack delivers 11.4V and 4000mAh for 45.60Wh of capacity.

Replaces worn or failed original packs

Swapping this unit in restores full mobile runtime when the factory cell no longer holds charge or shows swelling. The jump is worth it when the laptop shuts down off AC or the operating system flags a battery health warning. It fits the same bay without modification.

Fits the existing chassis and power circuit

The 281.15 x 107.32 x 10.38 mm form factor slots directly into the designated compartment and connects to the stock motherboard header. No extra cabling, adapters or BIOS updates are required. The Li-ion chemistry works with the standard Asus charging algorithm.

How it compares

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

Price $47.99
Pricier than about 80% of the 27,790 comparable items (median $30.99).

Specifications

Product
Brand nameCameron Sino
Model nameDS-CS-AUN591NB
Product typeBattery

Questions about this item

What are the exact dimensions of the DS-CS-AUN591NB so I can confirm it fits my Asus N591LB?

The battery measures 281.15 x 107.32 x 10.38 mm and is designed as a direct replacement for the original B31N1402 pack in the N591LB chassis.

Which screw points or connectors must align when installing this 11.4 V pack in a Q551LN?

The pack uses the factory connector keyed to the 0B200-01050000 interface; align the three retention tabs before pressing the connector fully home — partial insertion is the common error.

When should I replace this 4000 mAh lithium-ion unit based on its voltage behaviour?

Replace the pack when a full charge no longer reaches 11.4 V under load or when the laptop shuts down abruptly above 20 % reported capacity.

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