High-Performance Replacement Battery for Dell Latitude E-Series & Precision M-Series Restore your Dell Latitude E6400, E6410, E6500, E6510 or Precision M4400, M4500 to optimal performance with this premium 58Wh Li-ion replacement battery. Specifically engineered for business and professional laptops, this PT434 compatible battery delivers reliable power and extended runtime for demanding work environments. Features stable 11.1V output and high-quality 6-cell design.