charging my lipo is so slow !

[dayxwalker]

I have just got back into rc so lipos are new to me. I have a trinity 4500mha stick pack and a ripmax charger that charges lipos but does not balance them. My problem is that it takes ages to charge it ! Like 74mins last time and it was not completely flat. It starts at almost 5A then drops very slow to less than 1A. Is the charger set wrong ? It's set to 4500mha
Also I need a vbalancer ! I have not balanced it for about 10 charges is this a bad thing ?