When you need a Replacement Dell JWPHF R4CN5 battery for your PC laptop or notebook computer, you need the power of LB1 High Performance batteries. It is the most cost effective and long lasting laptop batteries available on the market today. NOTE: PLEASE CHECK YOUR BATTERY PART NUMBER AND VOLTAGE TO ENSURE YOU ARE GETTING THE CORRECT BATTERY FOR YOUR LAPTOP. Compatible models: Dell XPS 15 | Dell XPS L501X | Dell XPS L502X | Dell P11F | Dell P11F001 | Dell P11F003(Digital Certification) Compatible part numbers: 312-1123 | 8PGNG | J70W7 | JWPHF | R4CN5 | 08PGNG | 0J70W7 | 0JWPHF | 0R4CN5Buy with confidence! 18 Months Warranty 8 hours/day x 5 days/week - Call Support Peace of mind exclusive 100k product protectionCopyright © 2011 Laptop Battery 1 All Rights Reserved.