Dell 3-cell 51 Wh Lithium-Ion Battery (451-BCLR) is a replacement laptop battery for select Dell laptops. It provides portable power when you are away from an outlet, with a clearly specified capacity for everyday mobile use.
The battery uses 3-cell lithium-ion technology and has a rated energy capacity of 51 Wh. Its listed weight is 250 g, giving a useful reference for a portable replacement part. This model is identified by Dell part number 451-BCLR.