Hello! I am currently on the prowl for a battery (like the kgo) that Is variable voltage, with a LED screen. I considered the "KGO" but the 650mah battery wont cut it for me. I need something around the 1100mah range. I already have the Vamo, and the itaste svd, I just want something smaller to take to work! I also have a ego twist (which I now use at work) but I really want something with a LED screen. Your help is much appreciated!