The BC-VW1 AC Charger for W Series Battery from Sony charges your battery off the camera so you won't have to tie up the camera every time the battery needs recharging. This charger has a 100V-240V AC input for worldwide compatibility (with appropriate plug adapters), and charges a battery in approximately 4.2 hours. An LED indicator shows charging status. This ultra compact charger features a retractable plug for easy storage in between uses. It is compatible with both select Alpha DSLR and NEX cameras.