Do you have the Gateway NV78 Series User's Reference Guide?
Gateway Support > NV78 Gateway NV78 Notebook Series > Support Documents,http://support.gateway.com/s/notebook/2009/gateway/nv/NV78/NV78ul.shtml
If not, left-click on,
Gateway NV78 Series User's Reference Guide - English
This is a PDF file.
Takes a few seconds before you see the first page, and additional time to fully download.
Suggestion is that you let the file fully download, before looking through it.
(Your computer has Adobe Reader on it, which uses PDF files)
Battery Charge Indicator.
(Has a symbol which looks like a flashlight battery)
"LED Solid Red
Battery is malfunctioning
Important: This LED only lights up when your notebook is connected to AC power, (The AC adapter is plugged in. 'Charger'),
or the battery charge is very low"