The Seidio 3500mah battery for the Palm Treo Pro ($69.95) is hands down the mother of all batteries. More than doubling the stock 1500mAh version, it offers unparalleled power and performance for those with an insatiable thirst for WM usage.

 

Of course the big question on everyone’s mind besides battery longevity is size. Surprisingly it is quite modest in girth and in a lot of ways, makes the Treo Pro, dare I say, feel better?

 

Curious about how long a monster 3500mah battery will get you at 528MHz? Wondering how it compares in size to the 800w, Moto Q9c and others? Read on for my take.