Tutor Earth -IT Replacement for Acer Travelmate 291lci-M11 291lmi 291lmi-G 291xci Charger 19v 3.42a 65w Power Adapter Laptop enables you to operate your notebook or charge the Laptop from electrical power outlets. If you are running your computer on AC power with a Adapter installed, the adapter charges the Laptop or Notebook (if needed) and maintains its charge. When the system is off, the AC adapter will charge the Adapter and then maintain its charge. Made from highest quality parts each Tutor Earth -IT replacement adapter confirms to specifications similar and guaranteed to meet or exceed your laptop's minimum requirements. Each adapter also passes necessary authentication certifications like CE, ROHS etc. Before leaving the factory, so you can be rest assured for its quality, durability and performance. Please make sure that you are selecting the correct adapter as per your old charger specification. Please compare your old Adapter Power Rating i.e. Volts (V), Amps (A), Watt (W) and Pin / Tip / Connector Size.