TOSHIBA PA3291U-1BAS Replacement notebook Batteries for Toshiba SATELLITE P20,P25 SERIES

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Claims of fast charging a Li-ion TOSHIBA battery PA3291U-1BAS 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 TOSHIBA PA3291U-1BAS notebook 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 batteries for TOSHIBA PA3291U-1BAS 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 PA3291U-1BAS battery and its protective circuit consume.

Use TOSHIBA PA3291U-1BAS battery needing attention some matters :
1. Carefulness read narrate book of battery,use commendatory battery.
2. Research the electric appliance and the PA3291U-1BAS 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.
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 TOSHIBA battery PA3291U-1BAS rebirth use hot up, charge,or other way.
6. Don’t let battery short circuit.
7. Don’t hot up laptop battery for TOSHIBA PA3291U-1BAS or loss it in water.
8. Don’t strip battery.
9. Electro-adapter should cut switch after use.
10.Should take off TOSHIBA PA3291U-1BAS battery from adapter when battery long time no use .
11.Battery should stock in cool place,and dry.