Battery Life of this laptop?

[Feggans222]

Hey guys just looking for an approximation of how long this model will last. I'm looking to do some gaming but that will obviously be using AC power, in terms of battery I will be using it mostly just for web browsing and word processing.

Description: Toshiba Satellite L50-A013 NB
CPU: Intel® Core - i7-3630QM Quad Core Processor
Clock Speed: 2.4 GHz - 3.4 GHz
LCD: 15.6" HD Widescreen with LED Backlit Display
Touch: NO
RAM: 4GB DDR3 (1600Mhz)
Hard Drive: 750GB (5400rpm) with Toshiba HDD Accelerator
Graphics: nVIDIA GeForce GT 740M 2GB With Optimus + Intel® HD 4000 Graphics
OS: Windows 8
Web Camera: HD Webcam⁄Microphone
Bluetooth: Toshiba Bluetooth V4.0 (High Speed)
Speakers: ONKYO Speakers
Wireless Connectivity:802.11 b/g/n , 1Gbps LAN
TV Tuner: NO
Connector: 3 USB Ports (2x USB 3.0 & 1x USB 2.0) + Sleep & Charge; Microphone & Headphone ports; Bridge Media Slot (SD, SDHC, SDXC, xD, Memory Stick, Memory Stick Pro, MMC), HDMI, VGA (RGB)
Optical Drive: 9.5mm 8x DVD-SuperMulti
Screen Resolution: 1366 x 768 (16:9)
Battery Life: Prismatic Li 4-Cell
Colour: Silver

I'm quite pleased with it's CPU and GPU power, but I just want to know how well it will perform doing basic school/university notetaking and research etc.

Thanks in advance

 

[Feggans222]

Anyone? Sorry to bump but I'm just wondering whether having a 4 cell with these specs will mean battery life will be really low.