hi,
yes, the last battery benchmark stated something around 20 hrs...
a bit of history: when i bought the player i found out that the battery is defective so i got myself
a new 2200 cs battery from licketysplitauctions. put it in -perfect

that was the first time i opened the player. a few weeks later i opened the player for the second time
to renew the outer hold-knob. and ive always been very careful and i am 100% sure that i didnt brake
anything inside. anway... after that i noticed the flickering (it could have been there berfore, im not quite sure). then i didnt use the player for a few months. after switching it on i still had those issues and i sent
it to the iriver service (here in germany) - they said that the battery is defective, offered me a replacement - too expensive, i thought and so i decided to do it myself and returned the battery directly to cameron
sino to get a replacement; bought myself a cf card, opened the player and changed battery / hdd.
and also with this brand new battery from the manufacturer (cameron sino) the flickering is still there...

strange, isnt it!?
any idea what could be wrong? or is this just normal?