Perfect Compatibility: The SBL NYFJH laptop battery is replacement for Dell Precision 7530, 7730, 7540, 7740, and P34E / P74F series laptops. Ensures a seamless fit and optimal performance, just like the original battery. There are 2 kinds connector of this battery, please choose the exact one you are preparing to replace as the original battery of your laptop. High-Quality Build: Made with brand-new materials and grade A+ cells, this battery offers high capacity and long-lasting power. It is tested under strict quality control standards for reliability. Long Battery Life: With a capacity of 97Wh / 7000mAh and up to 500 recharge cycles, it provides extended usage time between charges, reducing the need for frequent replacements. Safety-Certified: Certified by CE / FCC / RoHS, the battery comes with a smart chip for low power consumption and multiple safety protections, including over-charge, over-discharge, and short-circuit protection etc. Excellent Customer Support: We offer 24 x 7 email support, a 30-day return policy and 12-month warranty. Our team is ready to assist you with any issues regarding the battery. The GBLGBD NYFJH laptop battery is the ideal replacement for your Dell Precision 7530, 7730, 7540, 7740, P34E, and P74F series laptops. Engineered with precision, it provides a perfect match in terms of compatibility and performance. NOTE: There are 2 types connector of this battery, please choose the exact one you are preparing to replace as the original battery of your laptop. Constructed from brand new materials and featuring grade A+ cells, this battery is built to last. It offers a high capacity of 97Wh/7000mAh, ensuring that your laptop can run for extended periods without running out of power. With up to 600 recharge cycles, you can enjoy long-term use without the worry of rapid battery degradation. Safety is our top priority. The NYFJH battery is certified by CE / FCC / RoHS, guaranteeing compliance with international safety standards. It also comes with a smart chip that enables low power consumption and provides multiple safety protections. This means you can use your laptop worry-free, knowing that your battery is protected from over-charge, over-discharge, and short-circuit situations. In addition to its high-quality performance, we are committed to providing excellent customer support. If you have any questions or encounter any issues with the battery, our 24 x 7 email support team is just a message away. We offer a 30-day return policy and a 12-month warranty, ensuring your satisfaction with the product. When purchasing, we recommend opening the back cover of your laptop to confirm the original battery model number. This will help you ensure that the NYFJH battery is the correct fit for your device. If the new battery is not recognized during installation, simply reinstall it and check the connection. For best results, discharge the new battery to 5% (not 0%) and then charge it to 95%, cycling this process 3-4 times to optimize its performance. Compatible Laptop Models: Dell Precision 7540 Series Dell Precision 7740 Series Dell Precision 3520 Series Dell Precision 3530 Series Dell Precision 7530 P74F Series Dell Precision 7730 P34E Series Dell Latitude 5280 5288 Series Dell Latitude 5480 5490 Series Dell Latitude 5488 5495 Series Dell Latitude 5491 5591 Series Dell Latitude 5580 5590 Series Replacement / Original Battery Part Numbers: NYFJH 0NYFJH 0WNRC 00WNRC GW0K9 0GW0K9 451-BCGI 5TF10 Choose the SBL NYFJH battery for a reliable, long-lasting, and safe power solution for your Dell laptop. CAUTION: Do not dispose of in fire, but keep the battery away from fire. Do not directly connect (short circuit) the posite(+) and the negetive(-) terminals. Never attempt to disassemble or reassemble the battery pack. Do not use chargers other than the designated one to charge this battery pack.