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> Forcing Battery Charging┐?
brontoZaurus
post Apr 24 2009, 02:52 AM
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Hello friends, i have one C3000 and would like make one question to you,
how can i "make" charging the battery from the service menu (d+m)┐?
in page 2 there are 2 batt options

5. Low Battery
6.Batt Voltage Adjust
6.1 Battery Voltage Adj
6.2 Battery Voltage Check

and a charge option

10. Charge



how can i force batt charging

thanks in advance!!
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brontoZaurus
post May 5 2009, 09:38 AM
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QUOTE(utx @ May 5 2009, 05:38 PM) *
QUOTE(brontoZaurus @ May 5 2009, 04:28 PM) *
QUOTE(speculatrix @ May 5 2009, 12:29 AM) *
be warned that overcharging your battery can damage it permanently; severely overcharging it can make it explode!


Ok, but then, what do you recomend for fully charging the battery?
Thanks in advance.


Boot, plug the external power supply and don't care. Internal charging electronics should be smart enough to prevent explosion. Orange LED is just an indicator, that charging IC is still active.

Note: Reading the charger IC datasheet, I considered not being exact while describing charge cycle: When the battery is deeply discharged (below 2.8V), slow charging (pre-charge) is used as well. When the battery reaches 2.8V, fast charge is enabled, when full charge is detected, it goes back to slow charging (termination current). CPU may externally terminate charge cycle.

See the datasheet on my Zaurus web pages.


Ok, i'll take a read to it, thanks.
i really wanna know the best charging method to daily charging because i'm planing to buy 2 or 3 batteries and wanna long their life (sorry for my english)
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utx
post May 5 2009, 12:24 PM
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QUOTE(brontoZaurus @ May 5 2009, 07:38 PM) *
i really wanna know the best charging method to daily charging because i'm planing to buy 2 or 3 batteries and wanna long their life (sorry for my english)


Well, this is not a problem of charging algorithm and hardware. It only performs: "charge quickly but safely" and "don't run into dangerous deep discharge". You should probably search on web pages with discussions about lithium-polymer rechargeable batteries life cycle. I cannot answer you. I use Zaurus as I want, not as my batteries would like to see.

Lithium-polymer batteries have problems with aging, even if they are not in use. Buying more batteries at once is a good idea only if you plan to spend longer time outside civilization. And even then, Zaurus is not comfortable device for battery swapping. It does not have back-up battery. You have to halt your Zaurus before battery swap (before battery goes out of power), then boot and set real time clock.
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