Dell 451-BBZT is a primary lithium-ion battery for powering compatible Dell Latitude laptops. Its 3-cell pack has a stated energy capacity of 51 Wh.
It is listed for Latitude 5280, 5290, 5480, 5490, 5491, 5495, 5580, 5590 and 5591. Check that your laptop is among these models when choosing a replacement; compatibility is limited to this listed range.
The battery can replace the pack in a compatible notebook when battery operation needs restoring.
Package contents: 1 battery.