 Battery Charging Problem? |
OESF Forums > Archived Forums > Distros, Development, and Model Specific Forums > Model Specific Forums > Sharp PC-Z1 NetWalker
 Oct 7 2012, 12:56 PM
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#1
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Group: Members Posts: 90 Joined: 1-April 08 From: Silesia Member No.: 21,583  |
I had netwalker unused for a while. After plugging it to charger and booting it started to behave oddly.
Netwalker works fine but charging led (the one on netwalker) blinks and unit will not charge more than 70%. When booted from halt witch charger unplugged it shows 10-12%. After just plugging charger and unplugging charge jumps to 70%. I had left it charging (with blinking) for over 24h but it behaves the same. Can any one suggest what happened? I wanted to use it as small home media center for music and internet radio and for email but now I dont know how it will behave. |
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Oct 7 2012, 07:41 PM
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#2
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 Group: Members Posts: 1,365 Joined: 25-June 03 From: Silicon Valley Member No.: 208 |
Perhaps something about battery calibration went wrong due to not using netwalker for some time, battery level discharge too much?
Not sure how to recalibrate battery or reset system on this...as I don't have netwalker anymore.... |
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Oct 8 2012, 12:17 PM
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#3
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 Group: Members Posts: 184 Joined: 24-December 05 Member No.: 8,780 |
QUOTE(ArchiMark @ Oct 7 2012, 11:41 PM)  Perhaps something about battery calibration went wrong due to not using netwalker for some time, battery level discharge too much? Not sure how to recalibrate battery or reset system on this...as I don't have netwalker anymore.... A fairly standard way to recalibrate batteries is to discharge them fully, then charge all the way up to 100% (or as far as it'll go). This recalibrates the charging circuitry essentially, makes no change to the actual battery. It may need repeating to achieve accuracy. If the Netwalker won't actually turn on, making discharging the battery fully difficult, I'd remove the battery, then hardwire a small bulb of appropriate voltage in to the terminals to drain it. Then put the battery back into the Netwalker and leave it overnight to charge. |
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Oct 8 2012, 12:40 PM
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#4
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Group: Members Posts: 90 Joined: 1-April 08 From: Silesia Member No.: 21,583 |
Deluxe, thanks for hint. I will try to fully discharge netwalker. It is alive so it should not to be a problem.
ArchiMark, this unit was yours some time ago  |
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 Oct 9 2012, 05:23 AM
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#5
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Group: Members Posts: 1,365 Joined: 25-June 03 From: Silicon Valley Member No.: 208 |
QUOTE(ptoki @ Oct 8 2012, 01:40 PM) Deluxe, thanks for hint. I will try to fully discharge netwalker. It is alive so it should not to be a problem. ArchiMark, this unit was yours some time ago Oh yeah.....right....... 
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Posts in this topic
ptoki Battery Charging Problem? Oct 7 2012, 12:56 PM
deluxe Often I have had a seemingly dead battery in a lap... Oct 8 2012, 01:21 PM ptoki Well, I have left walky plugged and couple days la... Oct 23 2012, 10:20 AM deluxe If the charging circuit has fried, then complete b... Oct 23 2012, 10:25 AM ArchiMark Your best bet is probably Brett at Conics.net....
... Oct 23 2012, 07:08 PM ptoki Deluxe, thanks for suggestion but i think that cel... Oct 24 2012, 10:58 PM ArchiMark Let us know how it goes, ptoki.....
Bit off-topic... Oct 31 2012, 02:45 PM ptoki No, I stick to initial ubuntu. It works fine and I... Oct 31 2012, 03:17 PM
ArchiMark Thanks for your thoughts, ptoki.....
Sounds good ... Oct 31 2012, 04:30 PM ptoki QUOTE(ArchiMark @ Nov 1 2012, 02:30 AM) T... Aug 5 2013, 01:53 AM |
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