"Dell's most popular laptop", the Inspiron 1545 (also known as the Inspiron 15), is a sturdily constructed, affordable, mid-range machine that is extremely customisable so can be configured to be suitable for most needs, though higher spec models can get quite expensive.
Get up to 8 hours and 7 minutes of battery life1 with the 6-cell Dell Inspiron 1545 battery!

Manufacturer Part# C601H
Dell Part# 312-0763
Technology: 6-cell lithium ion

48 WHr capacity lets you work seamlessly while on the move
Offers reliable power for dependable performance
Supported by Dell Technical Support when used with a Dell system