Model : HP 6720, 6730sT, 6830s, 550Part No : HP6730LHVoltage : 10.8Cell : 6Rating : 4400mAh/48whWarranty : 06 MonthsCompatible Models :-HP 451085-121HP 451085-141HP 451085-142HP 451085-361HP 451085-621HP 451085-661HP 451086-001HP 451086-121HP 451086-141HP 451086-142HP 451086-161HP 451086-322HP 451086-361HP 451086-362HP 451086-421HP 451086-621HP 451086-661HP 451568-001HP 456864-001HP 456865-001HP 464119-142HP 464119-143HP 464119-162HP 464119-361HP 464119-362HP 464119-363HP 484787-001HP 490306-001HP 491278-001HP 491279-001HP 491654-001HP 491657-001HP 496897-001HP 500764-001HP 500765-001HP 501870-001HP 550HP 572186-001HP 572187-001HP 572188-001HP 572189-001HP 572190-001HP 572191-001HP DD06HP DD08HP DD08063HP GJ655AA#ABHHP GJ655AAHP HSTNN-FB51HP HSTNN-FB52HP HSTNN-I39CHP HSTNN-I40CHP HSTNN-I48C-AHP HSTNN-I48C-BHP HSTNN-I49CHP HSTNN-I50C-BHP HSTNN-I54CHP HSTNN-I64C-5HP HSTNN-I65C-5HP HSTNN-IB51HP HSTNN-IB52HP HSTNN-IB55HP HSTNN-IB62HP HSTNN-LB51HP HSTNN-LB52HP HSTNN-OB51HP HSTNN-OB51THP HSTNN-OB52HP HSTNN-OB62HP HSTNN-XB51HP HSTNN-XB52HP HSTNN-XB62HP KU532AAHP NBP8A97HP COMPAQ 550HP COMPAQ 610HP COMPAQ 615HP Business Notebook 6720SHP Business Notebook 6720S/CTHP Business Notebook 6730SHP Business Notebook 6730S/CTHP Business Notebook 6735SHP Business Notebook 6820SHP Business Notebook 6830S