1. My husband was able to draw a pull; had vapor. I let it charge a couple hrs; took a pull and no vapor. Played with it a little, got one pull with vapor, nothing else. I have let it charge a little more; tried again got one pull w/vapor then nothing (dry pull?). So, not sure if it's the batt or something else.
2. Yes it is Ego style...with button.
3, Yes, button lights up for all normal reasons it should i.e. pluggin into charger, holding button down, touching button etc
4. The brand is definitely GG1. But links>> this is exact one I got>>> Vaporizer Pen -Vape
^^ looked at link...2 differences with mine the mouth piece is black tapered (like the Ego) and my charger does not have the trademark; but the batt does.
Are you allowing the battery to charge completely? You should allow it to charge to full. The lights should tell you when it is done charging. Depending on how deleted the battery charge was/is, that may be the reason. Also, when putting the clearomizer/cartomizer/ atty on do not over tighten it as you will push the center pin down on the battery further hampering the connection.
Let us know how its going.