TWB Premium Grade Generic Laptop Battery For HP 6720s, 6730s TWB Batteries are the perfect choice that you can make for your computer. Very affordable, The best quality batteries on the market. Long Life durable Battery for your Laptop Specifications: Color: Black Product type: Laptop battery (Lithium-Ion) Capacity: 4400/5200mAh (6 cells) Voltage: DC 10.8V Net weight: 340g Compatible Parts: 451085-121, 451085-141, 451085-661, 451086-001, 451086-121, 451086-141, 451086-142, 451086-161, 451086-322, 451086-361, 451086-421, 451086-621, 451086-661, 451545-251, 451545-252, 451545-361, 451568-001, 456623-001, 456864-001, 456865-001, 464119-142, 464119-362, 484785-001, 490306-001, 491278-001, 491654-001, 491657-001, 500764-001, 500765-001, 501870-001, 513129-121, 513129-141, 513129-421, 572186-001, 572187-001, 572189-001, 572190-001, Dd06055, Gj655Aa, Gj655Aa#Abh, Hp-6720S, Hstnn-Db51, Hstnn-Fb51, Hstnn-Fb52, Hstnn-I39C, Hstnn-I40C, Hstnn-I47C-A, Hstnn-I48C-A, Hstnn-I48C-B, Hstnn-I49C, Hstnn-I50C-A, Hstnn-I50C-B, Hstnn-I54C, Hstnn-I64C-4, Hstnn-I64C-5, Hstnn-I65C-4, Hstnn-I65C-5, Hstnn-Ib51, Hstnn-Ib52, Hstnn-Ib55, Hstnn-Ib62, Hstnn-Lb51, Hstnn-Lb52, Hstnn-Ob51, Hstnn-Ob52, Hstnn-Ob62, Ku532Aa, Fits Computer Models: HP Compaq 550, 6720S, 6730S, 6735S, 6820S, 6830S, Business 6720S, Business 6730S, Business 6735S, Business 6820S, Business 6830S, Compaq 610, Compaq 615, Compaq 6720S, Hp 6720S, Package include: 1 x Hp laptop battery What's in the box 1 X Laptop Battery