Charge your spare battery with the Samsung battery charger. The battery charger features foldable prongs for easy storage and portability. The front features a red indicator light and a plastic front cover. Not compatible with extended batteries. The battery charger works with the Samsung AB503442CABSTD standard battery. How to use: Contact the positive and negative electrode of the battery to the relevant flips, and then put it into the charger. Insert the AC plug into the electrical outlet, it begins to charge, and the red indicator light will light up. When finished charging, the red indicator light will turn off, then you can pull out the charger and use the battery. The Samsung Battery Charger (SAMT519CHAGBAT02) is compatible with the Samsung M520, Wafer R510, R500 Hue, R610, Blast T729 and Trace T519 phone models.