Question

How long should I charge the battery the first time on ASUS Eee PC1000He and HP iPAQ 214 Enterprise (PDA)?

Asked by: hermesalpha

How long should I charge the battery the first time on ASUS Eee PC1000He and HP iPAQ 214 Enterprise (PDA)?

I recently also purchased an e-reader (Hanlin V3), and the manufacturer told me to charge it 12 hours the first time. After that, it's enough with 1-2 hours.

What about my newly purchased ASUS Eee PC1000He and HP iPAQ 214 Enterprise? When I had charged my HP iPAQ 214 Enterprise for 2 hours, the battery indicator displayed green light. Normally, it shall be charged 2-4 hours. But the first time, how long should it be charged? I am still charging it though, now it has gone 7 hours.

My ASUS Eee PC1000He, I don't know when the battery indicator turned green, but now when I returned home after 5 hours of charging it shows green light.

Someone told me that if I charge a battery for a very long time the first time, it will significantly extend the battery life. Is that true?

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Asked On
2009-08-05 at 08:07:28ID24628318
Topics

Handheld and PDA Programming

,

Windows Tablet

,

PC Laptops

Participating Experts
3
Points
50
Comments
3

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Answers

 

by: Mikal613Posted on 2009-08-05 at 08:12:41ID: 25024346

24 hrs

 

by: nbhuPosted on 2009-08-05 at 08:32:45ID: 25024612

Hi!
I suppose it is Li-ion battery, so look at http://www.buchmann.ca/Chap4-page8.asp
It says:
No trickle charge is applied because the Li-ion is unable to absorb overcharge. Trickle charge could cause plating of metallic lithium, a condition that renders 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.

Depending on the charger and the self-discharge of the 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 4.05V/cell and turns off when it reaches 4.20V/cell again.

Regards, nbhu

 

by: greg_vanderPosted on 2009-08-05 at 09:12:12ID: 25025072

hi

yes it's true, the man who told you that was talking about the old generation batteries. now withli-ion you can do what you whant (charge half and unplug, discharge a few and recharge..), there is no memory effect.
regards

20120131-EE-VQP-002

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