COMPATIBILITY: A generic battery charger designed for Sony NP-F550/F750/F960/F330/F570 PA-VBD1 PA-VBD2 and other compatible batteries PORTABLE STYLE: With a foldable AC plug, the convenient charger will charge your batteries at home, so you can always have a fresh battery supply for your photographic needs; a handy companion for digital shooting INTELLIGENT PROTECTION SYSTEM: Quick charge with automatic constant current control prevents battery from overcharging, over discharge, over-temperature, over current, over voltage, short circuit, and electronic shock SMART LED INDICATOR: It shows you charging status by turning green when battery is fully charged NOTE: To safely and successfully charge your battery, please make sure to line up the correct polarity (positive / negative) before inserting the battery onto the charger