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Black rectangular lithium-polymer laptop battery with connector plug

PISKEKAT

PISKEKAT 11.1V 36.4Wh laptop battery for Acer Aspire S3-391

SKU CH-FA5Q-2NZ2X

Replacement lithium-polymer battery delivering 11.1 volts and 36.4 watt-hours for Acer Aspire S3 ultrabooks and C720 Chromebooks

  • Battery TypeLaptop Batteries
  • Li-polymer chemistry keeps weight low for ultrabook mobility
  • 1 V 36.4 Wh capacity matches original runtime expectations
  • Replaces AP11D3F AP11D4F 3ICP5/65/88 3ICP5/67/90 and MS2346 part numbers
  • Fits Aspire S3-391 S3-951 C720 C720P S3-331 S3-371 and many sub-models
  • CE FCC RoHS certified for safe daily use

11.1 V Li-polymer battery for Acer Aspire S3 series

This replacement battery delivers 11.1 V and 36.4 Wh using Li-polymer cells in a black housing. It is designed for owners of Acer Aspire S3 ultrabooks such as the S3-391, S3-951, S3-331 and S3-371 models who need a new power source. The unit also fits Acer C720 and C720P Chromebooks that share the same chassis. Buyers with other Acer lines or non-Acer ultrabooks cannot use this pack.

Straightforward swap with correct part matching

Installation follows the standard ultrabook procedure: remove the bottom cover, disconnect the old pack and connect the new one using the existing cable. The main difficulty is verifying the exact part number; the battery replaces AP11D3F, AP11D4F, 3ICP5/65/88, 3ICP5/67/90, MS2346, KB1097 and several BT and KT codes. If the original label does not match one of these codes the connector or cell layout may differ and the pack will not fit.

Steady output for daily ultrabook workloads

The 36.4 Wh capacity supports typical ultrabook tasks such as web browsing, document editing and media playback for a full work session. Li-polymer chemistry maintains a stable voltage curve during sustained discharge, so the system does not throttle unexpectedly under continuous load. Heavy workloads like video rendering will deplete the charge faster, but the pack delivers consistent current without sudden voltage drops.

Highlights

  • Li-polymer chemistry keeps weight low for ultrabook mobility
  • 1 V 36.4 Wh capacity matches original runtime expectations
  • Replaces AP11D3F AP11D4F 3ICP5/65/88 3ICP5/67/90 and MS2346 part numbers
  • Fits Aspire S3-391 S3-951 C720 C720P S3-331 S3-371 and many sub-models
  • CE FCC RoHS certified for safe daily use

Specifications

Battery TypeLaptop Batteries

Questions about this item

How can I verify the 11.1V 36.4Wh battery is working correctly after installing it in my Acer Aspire S3-391?

After installation the laptop should power on using only the battery, the OS must report the design capacity near 36.4Wh and charge to 100% without unexpected shutdowns.

What is included with the PISKEKAT battery and do I need to purchase any extra parts for my S3-391?

The package contains the Li-polymer battery only; no tools, screws or AC adapter are supplied, so reuse the original hardware from your ultrabook.

My original battery is marked 3ICP5/65/88 — will this 11.1V 36.4Wh unit replace it directly?

Yes, the 3ICP5/65/88 part number is listed among the compatible codes, so this battery fits that specification exactly.

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