BTExpert Battery for Acer Aspire 7739G Aspire 7739Gz Aspire 7739Z Aspire 7745 Aspire 7745-332G57Bn Aspire 7745-431G32Mi Aspire 7745-431G48Mn 5200mah 6 Cell Color: Black - Type: Lithium-Ion - Capacity: Power 5200mah - Dimensionl: 269.59*48.5*23.9 mm N.M: 320g - Unit Cell: 6 This Replacement battery is guaranteed to meet or exceed original specifications. Quality: Durable and Utilizes high quality grade "A" cells for higher performance and more reliability. Fast charging. Low power consumption. Built-in protection circuit ensures both safety and stability. Buy with confidence!: The most cost effective and long lasting product available on the market today. Peace of Mind - 30 day worry free/no question ask return policy. Fast Shipping Peace of Mind!: Freshly produced and environmentally friendly and certified merchandise. We don't keep these on shelf because of our high-volume sales. We are able to sell good quality products at low prices because we buy direct from Manufacturers & Distributors in bulk quantity. BTexpert is a registered trademark protected by the US Trademark Law and is marketed exclusively by BTEXPERT. Any attempt to copy, relist or resell of BTexpert products without permission is prohibited; we reserve the right to take action against violators.