: 6-cell Lithium-ion battery (VGP-BPS13B/Q), providing roughly 4.5 hours of light use according to Sony UK specifications. ⚠️ Modern Performance Note
This is a "Sandy Bridge" architecture chip. While ancient by 2025 standards, the i5-2450M remains surprisingly capable for Windows 10 (not officially supported for Windows 11), basic office work, 1080p video playback, and light web browsing (with an SSD upgrade). It is a true dual-core with pseudo-quad-core performance via threading. sony vaio pcg-21313m specs
4400 mAh (approx. 49 Wh)
The PCG-21313M was built on the Intel "Sandy Bridge" architecture, marking a significant leap in performance over previous generations. : 6-cell Lithium-ion battery (VGP-BPS13B/Q)