The WLTree AA-PB9NC6B and AA-PB9NS6B battery is specifically designed to power your Samsung Series 3 and R-Series laptop models, including the R730, R540, R580, R519, R522, R719, R620, R530, R519, R522, R580, R780, RV510, RV511, RV520, RV408, and RV508 models. This battery offers superior charging and discharging performance, ensuring a smooth and uninterrupted computing experience. With a sleek design and high-quality materials, WLTree has crafted a battery that meets and exceeds Samsung's stringent quality standards. The battery is compatible with both 12V and 19V AC power adapters, making it a versatile addition to your laptop's power supply. Experience premium performance, reliability, and a more efficient computing experience with the WLTree AA-PB9NC6B and AA-PB9NS6B battery.