http://www.notebook-batteries.org/compaq-presario-1800-battery.html

http://www.notebook-batteries.org/compaq-presario-1800-battery.html
Select compaq presario 1800 laptop (notebook) batteries replacement (OEM Part# 116314-001, 176778-001, 176780-b21,) sell at factory pricing. We warrant that the compaq notebook presario 1800 battery one year and 30 day money back!