2-5 Business Day Standard Shipping from NJ or CA
1-3 Business Day Local Expedited Shipping
Press Ctrl+F to search by model name or part number
Press Ctrl+D to save this page to your Web browser's bookmarkCondition: NewProduct Type: Replacement Laptop / Notebook BatteryCell Type: Li-ionCell Number: 8Whr: 77.0Cell Number: 8-cellsVoltage: Compatible with 14.4v / 14.8v onlyCapacity: 4400 mAhColor: BlackReplace Acer Part Number: AS07B31, AS07B32, AS07B41, AS07B42, AS07B51, AS07B52, AS07B71, AS07B72Compatible Model: Acer Aspire 5520 Series: 5520G, 5520-6A2G12Mi, 5520G-402G25Mi, 5520-5A2G16
Acer Aspire 5920 Series: 5920G, 5920-6661, 5920-6582, 5920G-302G25, 5920G-302G20N, 5920G-602G25Mn, 5920G-602G20HN, 5920G-702G25Hn, 5920G-602G16Mn, 5920G-102G16, 5920G-302G20H, 5920G-3A2G25Mn, 5920G-302G25Mn, 5920G-302G16MN, 5920-1A2G16Mi, 5920-3A2G16Mi, 5920-302G12Mi, 5920G-302G25Hn, 5920G-302G25Hi, 5920-302G16MN
Acer Aspire 6920 Series: 6920-6422, 6920-6428, 6920-6610, 6920-6621, 6920-6731, 6920-6864
Acer Aspire 6920G Series: 6920G-6A4G25Mn, 6920G-6A4G25Mn, 6920G-6A4G25Mn, 6920G-814G32Bn, 6920G-814G32Bn, 6920G-814G32Bn, 6920G-832G25Bn, 6920G-834G32Bn, 6920G-834G32Bn, 6920G-834G32Bn, 6920G-934G32Bn, 6920G-934G32Bn, 6920G-934G32Bn
Acer Aspire 7520 Series: 7520-5115, 7520-5618, 7520-5823, 7520-6A1G08Mi, 7520G-502G25Mi, 7520G-502G32Mi
Acer Aspire 7720 Series: 7720-1A2G16Mi, 7720-3A2G12Mi
Acer Aspire 7720G Series: 7720G-1A2G16Mi, 7720G-1A2G24Mi, 7720G-302G25Mi, 7720G-302G25Mn, 7720G-302G32Hi, 7720G-3A2G32Mi, 7720G-5A2G16Mi, 7720G-602G50Mn, 7720G-603G50Hn, 7720G-702G50Hn
Aspire 7720Z Series: 7720Z-1A2G16Mi, 7720ZG-3A1G16Mi
Acer Aspire 8920 Series: 8920-6030, 8920-6048, 8920-6671
Acer Aspire 8920G Series: 8920G-6A4G32Bn, 8920G-6A4G32Bn, 8920G-6A4G32Bn, 8920G-834G32Bn, 8920G-834G32Bn, 8920G-834G32Bn, Aspire 8920G-932G32Bn, 8920G-934G50Bn, 8920G-934G50Bn, 8920G-934G50Bn, 8920G-934G64Bn, 8920G-934G64Bn, 8920G-934G64Bn
- 18 month warranty, 30 day money back & 100% customer satisfaction guarantee, 100,000+ happy customers!
- #1 laptop battery life in industry. 700-800 full charges / discharges. 20%+ more than average in comparison tests.
- Brand new replacement Acer AS07B31 battery. Premium grade Japanese cells with patented industry-leading technologies!
- 50%+ off suggested retail price. Get the most durable Acer AS07B31 battery at an affordable price.
- Average run-time: 4-6 hours (6 or 8 cells, 4400-5200mAh), 6-8 hours (9 or 12 cells, 6600-7800mAh).
- Manufactured to the highest quality available with true enhanced performance. Never trade off quality for profit.
- Multiple built-in safeguards protect against over-current, overcharging and overheating. Built to be reliable.
- No memory effect and environmentally friendly.
- Certifications: CE, FCC, ISO9001, ROHS, UL.
* This is an 100% compatible replacement accessory. Related trademarks are the property of the original manufacturer.
We are a professional manufacturer of replacement laptop batteries with a wide selection of models compatible with major laptop brands. A complete set of manufacturing and testing facilities, including Molding & Injection Center, COB Testing, Fully-Automatic SMT, Half-Finished Product Aging Testing, Finished Product Quality Control, and etc., ensures us to fulfill the fast-rising market demands with the best quality of products. We have been focusing on being a professional supplier for a full range of high-quality laptop batteries in the world market. Our products are precision-engineered and rigorously tested for voltage, capacity, compatibility and safety to exceed the original equipment manufacturer specifications. Our state-of-the-art PCB designs add huge value to the product stability, safety and performance, and have made us a true leader in the market of replacement laptop batteries.
Our company is ISO9001 certified and all of our products have passed CE and FCC certifications. The faith of our production and R&D team is to pay endless efforts on quality. In order to achieve consistent manufacturing quality, particularly in mass production phases, our Quality Control department keeps close eyes on raw materials and components, and ensures that our manufacturing process and products are always in compliance with both industrial and international standards.