18 Month Warranty

120%+ Battery Life Patented Technology
  • 6 Cell Lenovo IBM ThinkPad E420 E520 T410 T510 SL510 Black Replacement Laptop Notebook Battery 10.8V 5200mAh

Premium 6 Cell Lenovo IBM ThinkPad E420 E520 T410 T510 SL510 Black Replacement Laptop Notebook Battery 10.8V 5200mAh

  • Model #: Lenovo ThinkPad E420 Battery
  • List Price: US$75.00
  • Price: US$29.95

  • You Save: US$45.05 (60%)

  • Condition: New
  • Warranty: 18 Months
  • Availability: 100+ available / 10 sold
  • Shipping: 2-5 Business Day Standard Shipping
  •               1-3 Business Day Expedited Shipping
  • Location: NJ / CA, United States

  • 18 Month Warranty Premium quality Extreme performance 30 day money back guarantee

    Qty Price Discount
    1-4 US$29.95 No
    5-9 US$29.05 3%
    10-19 US$28.45 5%
    20-29 US$27.85 7%
    30-49 US$27.55 8%
    50-99 US$26.96 10%
    100+ US$26.36 12%

  • Price: US$29.95

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      Product Description:

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      Condition: New
      Voltage: Compatible with 10.8v / 11.1v only
      Capacity: 5200mAH
      Product Type: Replacement Laptop / Notebook Battery
      Cell Number: 6Cell
      Color: Black
      Weight: 11.92 oz / 338 g
      Dimensions: 8.07 x 2.17 x 0.79" / 20.5 x 5.5 x 2 cm (L x W x H)
      Part Number: 42T4708 42T4709 42T4710
      42T4712 42T4714 42T4715
      42T4731 42T4733 42T4735
      42T4737 42T4753 42T4757
      42T4799 42T4801 42T4803
      42T5263 51J0499 51J0500
      57Y4185 57Y4186 ASM 42T4703
      ASM 42T4711 ASM 42T4752 ASM 42T4756
      ASM 42T4794 ASM 42T4796 FRU 42T4702
      FRU 42T4710 FRU 42T4751 FRU 42T4755
      FRU 42T4791 FRU 42T4793 FRU 42T4795
      FRU 42T4797 FRU 42T4799 FRU 42T4801
      FRU 42T4803 FRU 42T4817 FRU 42T4819
      Compatible with: 

      ThinkPad W510 4389 ThinkPad E40 ThinkPad E50

      ThinkPad Edge 0578-47B ThinkPad Edge 14" ThinkPad Edge 14" 05787UJ
      ThinkPad Edge 14" 05787VJ ThinkPad Edge 14" 05787WJ ThinkPad Edge 14" 05787XJ
      ThinkPad Edge 14" 05787YJ ThinkPad Edge 15" ThinkPad Edge E420
      Thinkpad Edge E425 ThinkPad Edge E520 ThinkPad Edge E525

      ThinkPad L410 ThinkPad L412 ThinkPad L420
      ThinkPad L421 ThinkPad L510 ThinkPad L512
      ThinkPad L520 ThinkPad SL410 ThinkPad SL410 2842
      ThinkPad SL410 2874 ThinkPad SL410k 2842 ThinkPad SL510
      ThinkPad SL510 2847 ThinkPad SL510 2875 ThinkPad T410
      ThinkPad T410i ThinkPad T420 ThinkPad T420i
      ThinkPad T510 ThinkPad T510i ThinkPad T520
      ThinkPad T520i ThinkPad W510 ThinkPad W520


      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 industry average in tests.
      • New replacement Lenovo ThinkPad E420 battery. Premium Japanese cells with industry-leading patented technologies!
      • Built-in safeguards protect against short-circuit, overvoltage, overcurrent, overcharging and overheating. Built to be reliable.
      • Manufactured to the highest quality available in industry with true enhanced performance.
      • Average run-time: 4-6 hours (6 or 8 cells, 4400-5200mAh), 6-8 hours (9 or 12 cells, 6600-8800mAh).
      • 50%+ off suggested retail price. The most durable Lenovo ThinkPad E420 battery at an affordable price.
      • No memory effect and environmentally friendly.
      • Certifications: CE, FCC, ROHS, ISO9001, UL.

      * This is an 100% compatible replacement accessory. Related trademarks are the property of their respective owners.

      Company Profile


      We are a professional manufacturer of laptop accessories with a wide selection of models compatible with major laptop brands. A complete set of manufacturing and testing processes, including Molding & Injection, COB Testing, Automatic SMT, Aging Testing, and Quality Control, ensures us to fulfill the fast-rising market demands with the best quality of products. Our products are precision-engineered and rigorously tested for voltage, current, compatibility and safety to exceed the specifications of the original equipment manufacturer. 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 ever-changing market.

      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 Isabelle

      Warranty replacement received. Excellent customer service! Thank you.

      Customer Nolan

      I lost my laptop adapter 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 Nathaniel

      We are a high school. 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 anyone else), their batteries outperformed the OEM. Thank You for a great experience!

      Customer Alice

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