Yes, try to completely drain and recharge (overnight charge) the battery a couple of times but don't be surprised if that doesn't totally heal the problem. Based on the model number of your lappy it seems like it is a couple of years old. Most batteries are designed to work well and hold a charge for about a year (depends on how often you recharge the battery and use it). After that it could significantly begin to degrade and hold less charge. You probably need to replace your battery every 18-24 months.
The amount of time it takes for your battery to fully charge depends on many factors, like your battery type and operating system. Many newer laptops will charge in 15 to 20 minutes, while others can take a few hours.
When charging my dell 1545 battery for the first time,I charged it fully for 30 to 40 minutes before using it.
For your Gateway P-6860FX,you may have to go through a battery cycle a couple times before your battery begins performing at its maximum capability. To do this, charge your battery fully, let it discharge to about five percent, and then fully charge it again.
I'm using a Blue H1 netbook. I also have problems with its charger.
After pluggin the AC adapter, the battery will charge as shown in the taskbar. After I think 5 minutes, the fully charge light indicator lights up. When I unplug, the battery status is just in the 80% range.
My problem is that my netbook unit is already phased out. Would it be okay if I just removed the cell battery and permanently plug my netbook?