Battery>> laptop battery >> HP laptop battery >> HP Pavilion DV4021EA

HP Pavilion DV4021EA battery | Replacement HP Pavilion DV4021EA laptop battery

replacement HP Pavilion DV4021EA battery

if you found any problem about our website ,
please send email to give us some suggestions

* Full one Year Warranty.
* 30 Days Money Back.
* Ships the same business day.
* Shipping Worldwide.
* Payment by PayPal or Credit card.

Price:$65.00

View shipping cost and payment method

Type:	Li-ion
Capacity:	4400 mAh
Volt:	10.8 V
Size:	205.15 x 51.10 x 21.20 mm
Color:	Black

High quality dell battery Pavilion DV4021EA at popbattery.com,popbattery.com is batteries online shop.we offer HP battery Pavilion DV4021EA,ibm,sony,toshiba,hp,apple,acer,compaq,asus,dell,
all of our batteries have good quality,HP Pavilion DV4021EA battery are all Brand New, just fresh out from factory with New High Quality Japanese Cells,we provide full one year warranty and 30-day money-back policy on every product we sell.

HP Pavilion DV4021EA battery Compatible original Batteries :

HP Pavilion DV4021EA battery Fit with below laptops:

How to Charging the Li-ion HP Pavilion DV4021EA battery?

Claims of fast charging a Li-ion HP battery Pavilion DV4021EA in one hour or less usually results in lower charge levels. Such a charger simply eliminates stage two and goes directly into 'ready' once the voltage threshold is reached at the end of stage one. The charge level at this point is about 70%. The topping charge typically takes twice as long as the initial charge.
Depending on the charger and the self discharge of the HP Pavilion DV4021EA laptop battery, a topping charge may be implemented once every 500 hours or 20 days. Typically, the charge kicks in when the open terminal voltage drops to 4.05 volts per cell and turns off when it reaches 4.20V/cell.
No trickle charge is applied because the Li-ion laptop battery HP Pavilion DV4021EA laptop is unable to absorb overcharge. Trickle charge could cause plating of metallic lithium, a condition that makes the cell unstable. Instead, a brief topping charge is applied to compensate for the small amount of self-discharge the Pavilion DV4021EA battery and its protective circuit consume.

Use HP Pavilion DV4021EA battery needing attention some matters :
1. Carefulness read narrate book of battery,use commendatory battery.
2. Research the electric appliance and the HP Pavilion DV4021EA 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.
3.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.
4.Don’t make new and old or different model battery put off.
5. Don’t try to make HP battery Pavilion DV4021EA rebirth use hot up, charge,or other way.
6. Don’t let battery short circuit.
7. Don’t hot up laptop battery for HP Pavilion DV4021EA or loss it in water.
8. Don’t strip battery.
9. Electro-adapter should cut switch after use.
10.Should take off HP Pavilion DV4021EA battery from adapter when battery long time no use .
11.Battery should stock in cool place,and dry.

Battery Category

Top Sellers