The Battery Level Difference Between Acer Aspire 4520 and Acer Aspire 4710 running on Windows XP

Battery level meter in windows XP is just estimate ...but you can see the difference between Acer Aspire 4520 and Acer Aspire 4710 (Windows XP) ...

Acer Aspire 4520 Battery Level

Acer Aspire 4710 Battery Level

Acer Aspire 4520 platform:AMD Turion™ 64 X2 Mobile Technology TL-56 (1.8GHz, 1 MB L2 cache), supporting AMD HyperTransport® technologyNVIDIA nForce® 610M (MCP67-MV)Acer Aspire 4710 platform :Intel® Centrino® Duo mobile processor technology, featuring:
Intel® Core™2 Duo mobile processor T2450 (2MB L2 cache, 2.0GHz, 533MHz FSB)
Mobile Intel® 945GM Express Chipset
Intel® PRO/Wireless 3945ABG (dual-band tri-mode 802.11a/b/g) Wi-Fi CERTIFIED® network connection, supporting Acer SignalUp™ wireless technology