18 Month Warranty
  • 9 Cells Compaq Presario B2800 B2810 B2820 B2830 Series Replacement Laptop Notebook Battery 11.1V 6600mAh

Premium 9 Cells Compaq Presario B2800 B2810 B2820 B2830 Series Replacement Laptop Notebook Battery 11.1V 6600mAh

  • Model #: COMPAQ B2800 Battery
  • List Price: US$210.00
  • Price: US$83.95

  • You Save: US$126.05 (60%)

  • Condition: New
  • Warranty: 18 Months
  • Availability: 100+ available / 11 sold

  • Premium quality Extreme performance 30 day money back guarantee
    120%+ Battery Life Patented Technology
    Qty Price Discount
    1-4 US$83.95 No
    5-9 US$81.43 3%
    10-19 US$79.75 5%
    20-29 US$78.07 7%
    30-49 US$77.23 8%
    50-99 US$75.56 10%
    100+ US$73.88 12%

  • US$83.95 + Shipping Cost

      PayPal Protection

      Product Description:

      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 bookmark

      * This 9-cell battery provides more run-time for a single charge, but is larger than the 6-cell model.

      Factory Code:

      COMPAQ CB25

      Part Numbers:

      405231-001, 407672-001, HSTNN-CB25

      Fit Models:

      HP COPAQ   
       Presario B2800 Series      Presario B2801TX      Presario B2802TX  
          Presario B2803TX      Presario B2804TX      Presario B2805TX   
          Presario B2806TX      Presario B2807TX      Presario B2808TX   
          Presario B2809TX      Presario B2810TX      Presario B2811TX   
          Presario B2812TX      Presario B2813TX      Presario B2814TX   
          Presario B2815TX      Presario B2816TX      Presario B2817TX   
          Presario B2818TX      Presario B2819TX      Presario B2820TX   
          Presario B2821TX      Presario B2822TX      Presario B2823TX   
          Presario B2824TX      Presario B2825TX      Presario B2826TX   
          Presario B2827TX      Presario B2828TX      Presario B2829TX   
          Presario B2830TX      Presario B2831TX   
      Series Laptop Battery


      Compatible with 10.8v / 11.1v only




      204.30 x 68.60 x 20.50 mm







      Product Features


      • 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 COMPAQ B2800 battery. Premium grade Japanese cells with patented industry-leading technologies!
      • 50%+ off suggested retail price. Get the most durable COMPAQ B2800 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.

      Company Profile


      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.

      Customer Reviews
      My battery shipped FAST and was a perfect fit for my M1530. Very pleased with the price. My laptop now runs on battery like it did when it was new. DEFINITELY RECOMMEND!

      Customer Kenneth

      Warranty replacement received. Excellent customer service! Thank you.

      Customer Morgan

      I lost my laptop charger and found the replacement here. The site was easy to use, and my order arrived in 3 days. I have to thank you for getting my laptop up and running again :)

      Customer Kimberly

      We are a K-12 school district. Searched a number of sites for the battery for our laptops and found this site. Not only was the product a great price (better than anybody else), their batteries outperformed the OEM. Thank You for a great experience!

      Customer Daniel