|Li-ion||10.8V||5500mAh||Gray||Brand New||Only AU $75.42|
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Apple a1057 batteryCompatible original Part NO. :
- PowerBook G4 17 inch
- PowerBook G4 M9462
- PowerBook G4 M9689 /A
- PowerBook G4 M9689B/A
- PowerBook G4 M9689CH/A
- PowerBook G4 M9689F/A
- PowerBook G4 M9689HK/A
- PowerBook G4 M9689KH/A
- PowerBook G4 M9689LL/A
- PowerBook G4 M9689TA/A
- PowerBook G4 M9689X/A
- PowerBook G4 M9970 /A
- PowerBook G4 M9970B/A
- PowerBook G4 M9970CH/A
- PowerBook G4 M9970F/A
- PowerBook G4 M9970HK/A
- PowerBook G4 M9970KH/A
- PowerBook G4 M9970LL/A
- PowerBook G4 M9970TA/A
- PowerBook G4 M9970X/A
- PowerBook G4 M9110LL/A
Claims of fast charging a Li-ion Apple a1057 laptop battery 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 Apple a1057 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 Apple a1057 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 Apple a1057 battery and its protective circuit consume.
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1. Carefulnessly read narrate book of battery,use commendatory battery.
2. Research whether the electric appliance and the Apple a1057 laptop batteries contact elements is whether clean, when necessity 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 be placed at somewhere the child can't attain.
4.Don't mix up new and old batteries or put different model batteries together.
5. Don't try to make Apple a1057 battery rebirth use of hotting up, charging,or other way.
6. Don't let battery short circuit.
7. Don't hot up a1057 laptop battery or loss it in water.
8. Don't strip battery.
9. Electro-adapter should be cut switch after use.
10.Apple a1057 battery shoud be take off from adapter when it is long time no use .
11.Battery should be stocked in cool and dry places.
High quality Apple a1057 at battery-fast.com. We are a online shop for laptop battery. we offer laptop batteries for Apple a1057. All of our batteries have good quality,Apple a1057 laptop 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.