High-Quality Replacement Battery for Dell Chromebook Education Series Restore your Dell Chromebook 11 or 14 series to full performance with this premium 42Wh Li-ion replacement battery. Specifically designed for Dell Chromebook 3180, 3189, 5190, and 3400 education models, this 51KD7 compatible battery delivers reliable power for classroom and learning environments. Features stable 11.4V output and optimized capacity for all-day educational use.