External Battery for SONY Walkman NWZ Mp3 Player

External Battery Battery Pack for SONY Walkman NWZ A726 , NWZ A728 , NWZ A729 NWZ , A828 NWZ , A829 NWZ , S716 , NWZ S718 , NWZ A815 , NWZ A816 , NWZ S615 , NWZ S616 , NWZ S618 , NWZ E438 , NWZ E436 , NWZ S638 , NWZ S736 , NWZ S738 , NW-A805 , NW-A806 , NW-A808 , NW-A808/S , NW-A916 , NW-A918 , NW-A919 , NW-A919/BI , NW-S603 , NW-S605 , NW-S615F , NW-S616F , NW-S703F , NW-S705F , NW-S706F , NW-S706F/T , NW-S715F , NW-S716F , NW-S718F , NWZ-610F , NWZ-A815 , NWZ-A815BLK , NWZ-A815PNK , NWZ-A815SLV , NWZ-A815WHI , NWZ-A816 , NWZ-A816BLK , NWZ-A816PNK , NWZ-A816SLV , NWZ-A816WHI , NWZ-A818 , NWZ-A818BLK , NWZ-A818PNK , NWZ-A818SLV , NWZ-A818WHI , NWZ-A826 , NWZ-A828 , NWZ-A839 , NWZ-S515 , NWZ-S516 , NWZ-S615F , NWZ-S615FBLK , NWZ-S615FPNK , NWZ-S615FRED , NWZ-S615FSLV , NWZ-S616F , NWZ-S616FBLK , NWZ-S616FPNK , NWZ-S616FRED , NWZ-S639F , NWZ-S616FSLV , NWZ-S618F , NWZ-S710F Description: The Battery Backup Pack adds an external extra power source to your battery. Four conventional AA-Mignon 1.5 volt batteries fit into the housing of the battery pack. Connected to the charging port, your device receives a portable power supply by means of the 4 AA batteries. Equipped in this way, your device will continue to run for several hours. The duration depends on the batteries used and the power consumption of your device (approx. +/- 8 hours). Technical details: with this charging adapter you can use your device at the same time and charge also works with 1.2V and 1.5V AA mignon. green charging lamp on and off switch chic design small and handy Scope of delivery: 1 battery pack without AA batteries