Since I have now a kobo aura, I would say no to 5". Prior to it I used a PRS 350. Given that the Aura is only like 2mm higher and 5mm wider, why 5"? And make it one Battery, the weight adds up fast. And to be true, unless you could charge them in the reader, I would prefer the standard way of build in batteries. Your handle is of no use to me either. So all in all, count me out
