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Black rectangular laptop battery with label showing model C41N1903 and 66Wh capacity

Beisite

Beisite C41N1903 66Wh 15.4V laptop battery for Asus ExpertBook B9 B9450FA B9400CEA B3302FEA B5302CE B5302FE

SKU CH-HE8P-XXJY4

A 66 Wh 15.4 V lithium-ion replacement battery for Asus ExpertBook B9 and B5302 series laptops

  • Battery typeLithium-Ion
  • Battery voltage rating15.4 V
  • Battery capacity66 Wh/4335 mAh
  • Product colorBlack
  • Product typeBattery
  • Compatible withFor ExpertBook B9 B9450FA B9400CEA B3302FEA B5302CE B5302FE
  • 66Wh capacity supports long work sessions away from power
  • 4V lithium-ion chemistry matches original ExpertBook specifications
  • Replaces part numbers C41N1903, C41P0J1 and 0B200-03560100
  • Fits ExpertBook B9, B9450FA, B9400CEA and B5302 series models
  • Black finish aligns with laptop chassis colour

Replacement battery for ExpertBook B9

The Beisite C41N1903 is a new lithium-ion battery rated at 15.4V and 66Wh. It replaces part numbers C41N1903, C41P0J1 and 0B200-03560100. The unit fits a wide range of Asus ExpertBook B9 and B5302 models listed in the compatibility data.

Sustained runtime from 66Wh capacity

At 66Wh the pack delivers a full day of typical office work on a single charge. Lithium-ion chemistry maintains steady voltage through the discharge curve so performance does not drop off as the level falls. The 12 month warranty period reflects the expected cycle life under normal use.

Black finish matches original chassis

The battery housing is black to blend with the ExpertBook B9 interior. Direct-fit connectors align with the existing mounting points so installation requires no adapters or cable routing. Users who need a higher-capacity pack or a different voltage will need a different part number.

How it compares

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

Price $56.99
Pricier than about 87% of the 27,790 comparable items (median $30.99).

Specifications

Product
Brand nameC41N1903
Model nameC41N1903
Part number0B200-03560100
Product colorBlack
Product typeBattery
Power
Battery typeLithium-Ion
Battery voltage rating15.4 V
Battery capacity66 Wh/4335 mAh
Compatibility
Compatible withFor ExpertBook B9 B9450FA B9400CEA B3302FEA B5302CE B5302FE Series

Questions about this item

Does the 15.4 V 66 Wh lithium-ion pack run hotter than the original after a full day of use?

The replacement cell matches the factory 15.4 V 66 Wh rating, so thermal behaviour stays the same as the original battery under identical workloads.

My ExpertBook B9450FA-BM0165R uses the C41N1903 part — do I need any extra cables or brackets to install this unit?

No extra parts are required; the battery is a direct mechanical and electrical match for the C41N1903, C41P0J1 and 0B200-03560100 part numbers used in that model.

Will this 66 Wh battery work correctly with the older B9400CEA-KC0166R chassis I still have?

Yes — the B9400CEA-KC0166R is listed among the compatible models, so the 15.4 V 66 Wh pack will communicate and charge normally with that system.

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