6 Cells IBM Lenovo Thinkpad T410 T420 T510 T520 E40 E50 Edge 14" 15" E420 E520 L410 L420 L510 L520 SL410 SL510 W510 W520 Series Replacement Laptop Notebook Battery 11.1V 5200mAh3-5 Business Days Domestic Standard Shipping
1-3 Business Days Local Expedited Shipping
Press Ctrl+F to search by laptop model or part number
Press Ctrl+D to add this page to Favorites in your web browser
Voltage: 10.8V / 11.1V
Net Weight: 400g
Brand New Replacement Product, works as genuine parts, 100% OEM Compatible!
Replaces Part Numbers:
42T4235, 42T4731, 42T4733, 42T4737, 42T4753, 42T4757, 51J0499, 57Y4185, ASM 42T4703, ASM 42T4752, ASM 42T4756, ASM 42T4794, ASM 42T4796, FRU 42T4702, FRU 42T4751, FRU 42T4755, FRU 42T4791, FRU 42T4793, FRU 42T4795, FRU 42T4797, FRU 42T4817, FRU 42T4819
Fits Laptop Models:
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 E520
ThinkPad SL410 2842
ThinkPad SL410 2874
ThinkPad SL410k 2842
ThinkPad SL510 2847
ThinkPad SL510 2875
- 18-month manufacturer warranty / 30-day money back / 100% customer satisfaction guarantee.
- #1 Lenovo Thinkpad T420 battery life in industry. 650-800 full charges / discharges. 20%+ more than average!
- Brand new Lenovo Thinkpad T420 battery. No refurbished parts inside.
- Grade A+ cells made in Japan or Samsung, Korea.
- 66% off suggested retail price (on average). Durable Lenovo Thinkpad T420 battery at the lowest price.
- Average run-time: 2.5-8 hours (depending on battery capacity). Recharge time :1.5-2.5 hours.
- Exceeds original design specifications. Replacement battery of the highest quality on the market.
- No memory effect and environment friendly.
- Strict Lenovo Thinkpad T420 battery circuit management. Built-in battery protection circuit.
- Certification: CE, FCC, ISO9001, ISO9002, ROHS, UL.
* This is a 100% compatible replacement accessory. Related trademark is the property of its original manufacturer.
LaptopBatteryLife.com is a professional manufacturer of replacement laptop battery 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 Products Learning and Aging Test, Finished Products Fitness QC 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 original equipment manufacturer specifications. Our state-of-the-art PCB design adds huge value to the product stability, safety and performance, which makes us the leader in replacement laptop battery market.
Our company is ISO9001 certified and all of our products have passed CE certification. We believe that necessary quality certifications could bring our customers more confidence in buying our laptop battery products.
The faith of our production and R&D team is to pay endless efforts on quality. The Incoming Quality Control department keeps close eyes on raw materials and components inspections to screen materials of nonconformity. In order to achieve consistent manufacturing quality, particularly in mass production phases, proper training is a must. Our Quality Assurance department ensures that our manufacturing process is always in compliance with both industrial and international standards.
Since our sales volume has been increasing stably due to good quality and stability, our cost has become lower than our competitors, which makes us more competitive in providing cheap laptop batteries of the highest quality to our customers.