Use HP NC6400 battery needing attention some matters :

--Carefulness read narrate book of HP NC6400 battery,use commendatory battery.
--Research the electric appliance and the HP Compaq Business Notebook NC6400 laptop battery contact elements is whether clean, when necessity is clean with the wet cloth mop, after dry loads according to the correct polar direction.
--When non-adult custody, don't let the child replace the battery, compact battery like AAA should place the place which the child cannot attain.
--Don't make new and old or different model battery put off.
--Don't try to make battery HP Compaq Business Notebook NC6400 rebirth use hot up, charge,or other way.
--Don't let battery short circuit.
--Don't hot up laptop battery for HP Compaq Business Notebook NC6400 or loss it in water.
--Don't strip battery.
--Electro-adapter should cut switch after use.
--Should take off HP Compaq Business Notebook NC6400 battery from adapter when battery long time no use .
--Battery should stock in cool place,and dry.