Ultrabay Slim Battery II

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Ultrabay Slim Battery II (40Y6789)

This is a battery pack that slides into an Ultrabay Slim or Enhanced with power interfacing pins.

Features

  • Battery specification: 2.7Ah, 10.8V, 29.16Wh
  • Battery cell count: Three, 3.6V lithium-ion polymer prismatic cell
  • Battery run time: up to 2.3 hours
  • Battery charge time: up to 4.6 hours
  • Weight: 235 grams or 0.52 pounds

FOOTNOTES [Δ]
  1. This battery pack cannot be used in T4x/R5x models as they have a different battery pin layout.
  2. This battery pack cannot be used in a W500, T400, T400s, T410s, T410si, T420s, T420si, T500, R400, and the R500, as it has a different 'ejecting' design to allow it to be ejected differently. Despite the differences in design, the battery terminals are oddly the same.

Advanced Ultrabay Battery

Part numbers

Branded as the Advanced Ultrabay Battery, Sony

  • 41U4890 (40Y6787), 40Y6790 (40Y6787)

Usage and Linux support

See How to use Ultrabay batteries.

Models supporting this accessory