what you have to realise guys if your going from say 2.5 watts to three or for watts with the current antenna setup this will not really make that much difference , as its all physics , so if for instance your getting 5 miles with a 2.5 watt RF amp , upping it to say 3 or 4 watts will not really do that much , there is a simple rule I mentioned before , to double the distance you have to quadruple the power , so instead of upping the power , up the gain on the antenna system much safer, the above is an example you will find the 2.5 watts with the correct antenna combination will go like 20 + milesHey Will, I'm going to stick with the Gold 3W 5.8 RF. The Anker power bank wont power my 4W anyway, so I'd have some clutter using an additional power pack to power that 4W.