Use hp_compaq HSTNN-FB21 battery needing attention some matters :

* Carefulness read narrate book of battery, use commendatory battery.

* Research the electric appliance and the HSTNN-FB21 laptop batteries contact elements is whether clean, when necessity is clean with the wet cloth mop, after dry loads according to the correct polar direction.

* New hp_compaq" HSTNN-FB21 Battery Pack must be fully charged before use.

* Li-ion and NiMH Battery can not interchangeable.

* Don't make new and old or different model battery put off.

* Don't try to make hp_compaq HSTNN-FB21 battery rebirth use hot up, charge, or other way.

* Don't let battery short circuit.

* Don't hot up laptop battery for hp_compaq or loss it in water.

* Don't strip battery.

* Electro-adapter should cut switch after use.

* Should take off battery from adapter when battery long time no use .

* If you don't use your laptop for a period of time, you must fully discharge then recharge the battery.

* Battery should stock in cool place, and dry.

When using HP_COMPAQ as a desktop replacement the HP Compaq Business Notebook 2510p 2530pbattery should not be left in for long periods of time. The HSTNN-FB21 RW556AA1laptop will over time discharge the battery. Remove the battery,making sure that it is charged to 50% and store it in a dry, warm place. Ensure that it is wrapped protectively and nothing will be dropped on it.
HSTNN-FB21 should be re-installed every 3-4 weeks and allowed to fully discharge. Leaving HSTNN-FB21 battery in storage for longer than this without using could cause HP_COMPAQ HSTNN-FB21 to fully discharge as the circuitry of HSTNN-FB21 battery itself consumes power.
Leaving a battery in a laptop while using an electrical outlet for long periods of time will keep the battery in a constant state of charging up and that will reduce the life cycle of the HP_COMPAQ