|Hi Remnez, it is important to use a correct psu for your laptop. You are asking for trouble if using an incorrect one.|
Remove/replace the battery 3 or 4 times to clean its contacts.
You have not advised how old the battery is. If it has had a year or more's usage, I would suspect it.
Here in the UK (where are you ?) oem batteries are inexpensive, compared to those from the laptop maker. Select one with a higher wattage, but the same number of cells. Do not go for the cheapest, but one with a guarantee of 1-2 years.
If using for long periods at home, consider running with the battery removed.
Good Luck - Keep us posted.
message edited by Mike Newcomb