SOLUTIONS-365 Compatible E5400 battery for dell E5410 0KM742 0KM752 0KM769 0MT186 0MT187 0P858D 0PW640 0PW649 0RM656 0RM661 0T749D 0U116D 0U725H 0W071D 0WU843 laptop battery 6 Cell Laptop Battery