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HP EliteBook 840 G1 850 G1 Battery
Riel Innovations - HP Elitebook 840 G1 Intel Core i5-4300U @2.5GHZ 500GB Hard Disk Drive 8GB Memory Backlit keyboard 14 inches Display Display Good battery life 🔋 Bluetooth and Webcam enabled Fingerprint
Amazon.com: 7xinbox 50Wh 11.1V CM03XL Replacement Battery for HP EliteBook 840 G1 HSTNN-IB4R HSTNN-LB4R E7U24AA HP ZBook 14 CM03050XL 717376-001 : Electronics
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HP EliteBook 840 G1 review: A gem of a business laptop | PCWorld
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HP E7U23AA - CO06XL 6-Cell Ultra Extended Battery for HP Elitebook 840 G1 745 G2 755 Zbook 14 - CPU Medics