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Compatible Battery No
Compatible laptop model
May be your Hp laptop need a dp399a external battery. batteryfast.co.uk have one of the largest inventories of replacement. This best quality 14.8VV Hp dp399a laptop batteries compatible with dp399a. If you have any question or suggestion about Hp dp399a battery, please contact us so we can offer you the most convenient service.
Brand new, Never refurbished, Full 1 year warranty. 100% OEM compatible. 30 days money back.
Use Hp dp399a battery needing attention some matters :
How to Charging the Li-ion Hp dp399a battery?
Claims of fast charging a Li-ion 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 Hp dp399a 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 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 battery and its protective circuit consume.
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