B31N1424 Laptop Battery 48Wh 4240mAh Compatible with Asus U4000 K401LB5010 K401LB5200 K401LB5500 A400U A401L K401L K401LB K401U K401UB V405L Series

High Capacity: Featuring an impressive 48Wh capacity coupled with a robust 4240 mAh rating, this B31N1424 laptop battery ensures extended usage time and prolonged operational efficiency for your ASUS laptops. Energy Efficient Technology: Utilizing cutting-edge energy management technology, our B31N1424 laptop batteries provide optimal power performance while maintaining lower heat emissions compared to traditional alternatives - enhancing both longevity and user experience during high-intensity tasks. Superior Compatibility: Specifically designed to fit seamlessly into multiple models within the ASUS lineup including but not limited to U4000 series, K401LB variants (K401LB5010/K401LB5200/K401LB5500), A-series like A400U/A401L, along with K-series variations such as K401L/LB/U/UB/V405L. Easy Installation & Maintenance-Free Operation: Designed with simplicity at heart, installation processes are straightforward requiring minimal effort; meanwhile, its maintenance-free operation means less hassle perfect for busy professionals who value convenience alongside top-notch functionality. Reliable Performance under Stressful Conditions: Engineered to withstand rigorous computing activities, these batteries deliver consistent charge cycles over long periods ensuring reliability whether you're working remotely or multitasking across various applications..syi