Gateway NV5916H

Hello to anyone of you and hoping you guys/girls can help me out,

I own a Gateway laptop (NV5916H-model) and last week it fell silent...totally silent when my battery limit reached its lowest point. At that moment I tried to charge it with the main supply adapter and then noticed that my cord was finished. So I ordered a new cord with the adapter from Gateway (Acer)...a few days later, once received I tried to charge the laptop, but to no avail. The witnessing blue light indicator didn't light up, nor did the charging redlight. After this, I ordered a new lithium battery- again from Gateway and received it today...Then I was hoping that with a new battery + a new adaptor/cord that everything would go smooth- nada ! There are no lights, not even a sound from the laptop. I tried the TICTACTOE trick of 30 seconds ( described on gateway support vid and also described the same way here on kioskea.net)...again- nada, no comprendo...nothing is working. Now, I'm beginning to think with all the tryouts, that maybe, just maybe, the "cmos" battery is a goner !

Please, is anyone capable of helping me out. It's frustrating as like many others here who have experienced some type of problem, this computer is somewhat of a "life support" for my professionnal duty.

Bob T