I am getting a new pair of batteries for my 550. Even though the player says 55 hrs playback (eh ?) , i was expecting them to last at around 12 hrs atleast.My first pair barely gave me 7-8 hrs at around 40-50 % volume.
So how should one look over these batteries. After how many charges should one charge & discharge ?
Please post the occult art you follow to make the most out of your batteries.
Cheers!