BTRY,PRI,42WHR,3C,LITH,BYD

Dell 451-BCSJ is an internal replacement battery for a compatible laptop. The product listing identifies it as part HDGJ8 and also gives 0HDGJ8 as an alternative part reference.

It uses lithium-polymer technology and has three cells, with a stated capacity of 3500 mAh / 42 Wh and an output voltage of 11.4 V. The battery is black. These details can help you check whether it matches the battery specified for your laptop.