Specifications:Condition: Brand New , 'A' grade cells,100% Compatible!Battery type: Li-ion BatteryVoltage: 14.8VCapacity: 40WhNumber of Battery Cells: 4Certification: CE FCC RoHSColor: black as picturesOperation time: approx 1.5-3 hoursPackage including: battery (in packing carton box) Compatible Model:For Dell Inspiron 14-3421 SeriesFor Dell Inspiron 14 SeriesFor Dell 14-3421 SeriesFor Dell 14-3437 SeriesFor Dell 14-5421 SeriesFor Dell 14-N3421 SeriesFor Dell 14-N5421 SeriesFor Dell 14R SeriesFor Dell 14R-3421 SeriesFor Dell Inspiron 15 SeriesFor Dell 15-3521 SeriesFor Dell 15-3537 SeriesFor Dell 15R-5521 SeriesFor Dell 17-3721 SeriesFor Dell 17R SeriesFor Dell 17R-5737 SeriesFor Dell 17R-N3721 SeriesFor Dell 17R-N3737 SeriesFor Dell 17R-N5721 SeriesFor Dell 17R-N5737 SeriesFor Dell 3421 SeriesFor Dell 3437 SeriesFor Dell N5521 SeriesFor Dell N5537 SeriesFor Dell N5721 SeriesFor Dell N5737 SeriesFor Dell Latitude 3440 SeriesFor Dell Latitude 3540 SeriesFor Dell Latitude E3440 SeriesFor Dell Latitude E3540 SeriesFor Dell Vostro 2421 SeriesFor Dell Vostro 2521 SeriesFor Dell 15R-5537 SeriesFor Dell 15R-N3521 SeriesFor Dell 15R-N5521 SeriesFor Dell 15R-N5537 SeriesFor Dell Inspiron 17 SeriesFor Dell Latitude 15 3000 Series Compatible Part Numbers:0MF69312-139049VTP68DTP6KP1N8TT5WFW1MNMK1R0PVJ7JV8VNTXCMRDVR7HMX29KDYGMTN24DRM312-13924DMNG6HY596XH009K1VPG019YMR90YT1G4M312-14334WY7C6K73M8RT13DJ9W6G35K4N121YV1YJ7W6XNMXRDW2312-138700R271312-0229451-11040451-11456453-10041F079NJ017N Note: Please check carefully about your laptop model name/battery part number/battery shape and size to make sure you purchase the correct battery.How to confirm that the battery is suitable for your laptop? Method 1: Use System Information to find your laptop model Step 1: Press Windows + R to open Run window. Step 2: Input "msinfo32" in the empty box and click OK to open System Information. Step 3: Keep in the System Summary section, and you will find the System Model item in the right pane. Method 2: Remove Battery from Laptop to find your laptop battery part number Step 1: Switch off the laptop and unplug the power cable in case of electric shock Step 2: Remove the back panel with the screwdriver. You should to this with care avoiding any harm to the laptop components. Step 3: Disconnect the cable connected to the battery and then take out the battery. After that, you can check the specifications of your battery. About Us-High Quality BatteriesWe are a laptop battery manufacturer with more than 20 years of R&D technology and the first to start circuit board development, we are positioned for high quality, simplicity and durability. With our own R&D team and production factory, we are the most professional full-service provider integrating development, production, sales and service. Our products are stable, safe and reliable in performance. The factory started to enter the research, development and production of polymer batteries in 2012, all batteries are made of A grade cells, which are tested by the original factory computer. We provide 100% satisfied customer service, please feel free to buy! If you have any questions or suggestions about our batteries, please contact us through Ebay message so that we can provide the most convenient service for you. -Perfect MatchAll of our batteries are brand new and are 100% compatible to meet OEM specifications for safety and efficiency. Same size as original battery, Don't worry about assembly and adaptation issues. -Equipped with safety featuresBatteries pass rigorous smart tests such as short circuit protection, over voltage protection, discharge protection and over current protection, which are important for the life cycle and safety of the battery All batteries are made of high quality materials to ensure good performance.All our item passed UL, CE, FCC, RoHS, UN38.3 authentication and MSDS. -Product Details1.Power Interface: Gold-plated connector points to ensure current transport excellently and serve stably.2.Enclosure: The enclosure is made of ABS + PC high quality material, it has high temperature resistant function to protect your laptop overheat.3.Battery Buckle: The battery buckle is closely connected to the laptop, and the metal interface is stably powered. Payment1. Paypal is the accepted paying method in our store.2. We send goods to your Ebay Address. Please make sure your Ebay Address is exactly your Shipping Address. If you want to revise the shipping address. Please contact us within 24 hours by e-mail. Thanks in advance for your close cooperation!3. We provide 12-Months warranty for your customers, any question or problem about our product, please send us ebay message,and we will surely solve it for you.Shipment1. Item will be sent out directly from our USA warehouse.2. All items will be shipped within 48 hours upon payment clears (except Saturday and Sunday and public holiday).3. Generally, it will come to you in about 2-6 business days! If you fail to receive it after that period, you can contact us through ebay message, and we will give you further assistance. Returns1. Our products have 12-Months warranty. A full refund can only be issued within 60 days.2. If you receive a product with quality problems or dissatisfaction, please contact us first, do not apply for a refund directly, thank you for your understanding and cooperation!3. We can't receive the returned item if buyer returns by yourself according to the address on original shipping package. We won't solve such case and buyer should responsible for the consequences. Please contact us before return the item. Feedback1.Your feedback is very important to us, please LEAVE us FOUR 5- Detailed Selling Rating (DSR), Your recognition is our motivation in developing our small company and improving our service for each customer.2.If there is some problem with the product, please take communication with us before leaving neutral/negative feedback or opening ebay/paypal case, we will do our best to resolve your problem. make you 100% satisfied.