| Feature | Specification | | :--- | :--- | | | Lithium-Ion (6-cell, VGP-BPS13/Q or similar) | | Capacity | ~48 Wh - 55 Wh | | Estimated Life | ~2 - 3 hours (new, light usage) | | Power Adapter | 19.5V DC, 4.7A (approx. 90W) |
The Sony Vaio PCG-61211M wins because of the standard 2.5-inch SATA and replaceable RAM —a rarity in ultrabooks of that era. sony vaio pcg-61211m specification
Performance profile (real‑world)