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Rectangular black lithium-ion laptop battery with label showing 11.1V 94Wh 8.4Ah

PISKEKAT

PISKEKAT 11.1V 94WH 8.4Ah Li-ion laptop battery for Lenovo ThinkPad X220 X220i X220S X230i

SKU CH-YP1H-XJAQ2

11.1 V lithium-ion replacement battery with 8.4 Ah capacity and 94 Wh energy for compatible Lenovo ThinkPad models

  • Battery typeLaptop Batteries
  • 94 Wh capacity extends runtime on compatible ThinkPads
  • 1 V 8.4 Ah Li-ion chemistry matches original specifications
  • Replaces part numbers 42T4899 42T4900 42T4942 42T4872 42T4865 42T4866
  • Fits ThinkPad X220 X220i X220S X230i and 29+ series models
  • Built-in TI chip with over-charge over-discharge over-voltage over-current over-heating protection

Replacement battery for ThinkPad X220 series

This 11.1 V lithium-ion pack delivers 94 Wh and 8.4 Ah to Lenovo ThinkPad X220, X220i and X220S models. An intelligent TI chip and multiple circuit protections guard against over-charge, over-discharge, over-voltage, over-current and over-heating. A-grade cells support fast charging and low power consumption for stable daily use.

Upgrades from 42T4899 and related part numbers

The battery replaces original Lenovo part numbers 42T4899, 42T4900, 42T4942, 42T4872, 42T4865, 42T4866, 45N1029, 45N1028, 45N1172 and 45N1022. Users with a depleted or swelling factory pack will regain full runtime and safe charging behaviour by fitting this unit. The jump is worth it when the original battery no longer holds a useful charge.

Suits X220, X220i and X220S owners needing

This pack matches the 11.1 V, 94 Wh specification for the listed ThinkPad models and includes the required protection circuitry. Buyers who need a higher-capacity 9-cell design, a different voltage, or compatibility with X230 or later series should look at other options.

How it compares

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

Price $78.99
Pricier than about 90% of the 27,790 comparable items (median $30.99).

Specifications

Power
Battery typeLaptop Batteries

Questions about this item

Does the 11.1 V 94 Wh battery match the original X220 form factor and latch positions?

Yes, it replaces part numbers 42T4899 42T4900 42T4942 42T4872 42T4865 42T4866 and fits ThinkPad X220 X220i X220S 29+ series without modification.

What is the correct order to install the 8.4 Ah pack and avoid the common latch-miss error?

Power off the laptop, slide the pack in until both side latches click audibly, then press the release buttons once to verify they are fully engaged before turning the system on.

When should the 45N1029 compatible cell be replaced based on its built-in protection behaviour?

Replace it when the intelligent TI chip triggers frequent over-heating or over-current shutdowns during normal use, indicating the A++ cells can no longer hold the rated 94 Wh capacity.

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