This Hp SS03XL laptop battery is compatible with HP Elitebook 840 G5, and 846 G6. This battery is high-quality which ensures reliability and safety in laptops. This battery will provide 2.5 to 3 hours of backup. This battery type is Li-Polymer which is efficient and effective with low self-discharge levels in use. Also, if this battery is not used, the battery does not discharge much, so the laptop remains charged for a long time.