DCR pc55e

hi
no need to disassemble the device all you need is long thin tweezers
take the battry out
look inside the socket (with light) and find the silver\gold connection battry tabs
with the tweezers elevate the tabs for better connection
on the lid is a spring like (push the battry in place)
elevate it too

if this wont work

buy a new battry before taking apart the device

good luck

the quickest way to dismantle the camcorder is to hit it with a hammer! nah, just joking ...
email support at the sony website and they will send you instructions how to take the chasis apart etc..