484786-001 - 55Whr 10.8V 6-Cell Battery for HP Elitebook 8440p 8440w Probook 6550b 6555b - CPU Medics
High Quality HP EliteBook 8440P Replacement Battery | Laptop Battery Direct
High Quality HP EliteBook 8440P Replacement Battery | Laptop Battery Direct
Restored HP Silver 14" EliteBook 8440P Laptop PC with Intel Core i5 Processor, 4GB Memory, 320GB Hard Drive and Windows 10 Pro (Refurbished) - Walmart.com
HP EliteBook 8440P - 6 Cell TD06 Original Laptop Notebook Battery
Laptop Battery Td06 For Hp Elitebook 8440p 8440w 6930p 6530b 6535b 6730 - Laptop Batteries - AliExpress