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Rectangular black lithium-polymer battery pack with connector ribbon

NShi

NShi P21GU9 laptop battery for Microsoft Surface Pro 1 1514, Surface Pro 2 1601 10.6" 7.4V 42Wh 5676mAh

SKU CH-ES7K-FBTF4

Replacement lithium-ion battery delivers 7.4 V, 42 Wh capacity for Surface Pro 1 1514 and Surface Pro 2 1601 tablets

  • Battery typeLithium Polymer
  • Restores full mobility with 42 Wh capacity
  • Delivers steady 7.4 V output for reliable operation
  • Fits Surface Pro 1 1514 and Pro 2 1601 exactly
  • Grade A cells reduce leakage risk and improve stability
  • Built-in circuit protection safeguards against overcharge and short circuits

Replacement battery for Surface Pro 1 and 2

This lithium-ion pack replaces the original P21GU9 cell in Microsoft Surface Pro 1 model 1514 and Surface Pro 2 model 1601. It delivers 7.4V and 42Wh from two Grade A cells rated at 5676mAh. The black polymer casing matches the factory form factor for the 10.6" tablet series.

Suits owners of first

Users with a Surface Pro 1 1514 or Surface Pro 2 1601 can restore original runtime. Buyers who need a battery for Surface Pro 3 or later models cannot use this pack. Devices with a different part number or a 64GB-only configuration not listed here should look elsewhere.

Straightforward swap once the back cover is removed

Installation requires opening the tablet chassis and disconnecting the original two-cell module before fitting the new unit. The most common issue is damaging the fragile ribbon cables or adhesive strips during disassembly. Verifying the exact part number on the old battery before ordering avoids mismatches.

How it compares

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

Price $63.99
Pricier than about 90% of the 27,790 comparable items (median $30.99).

Specifications

Power
Battery typeLithium Polymer

Questions about this item

Does this battery fit a Surface Pro 1 model 1514 without any other parts?

Yes, it replaces part numbers P21GU9 2ICP5/94/104 2ICP5/94/105 and is compatible with Microsoft Surface Pro 1 1514 and Surface Pro 2 1601.

Will the original 7.4V charger still charge this 42Wh replacement correctly?

The battery operates at 7.4V with 42Wh capacity, matching the original specification so the existing charger works normally.

How can I confirm the new battery is recognised after installation?

Windows will show the battery at 7.4V and 5676mAh capacity in the system power report once the device boots.

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