I have an everex SA2050T laptop that powers up when plugged into the ac adapter and with the battery installed. If I remove either one, the laptop shuts off. While plugged in the battery light indicates it is receiving a charge. It will not run at all on battery alone. It will not run on ac adapter alone. Has anyone ever experienced this? If so could you share your experience about solving the problem, or if you have a solution, I would much appreciate your kind assisstance. Thanx!!!!