OESF Portables Forum
General Forums => General Discussion => Topic started by: theb on December 27, 2003, 05:15:37 am
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Are you guys using the ER-72 charger that came with the Zaurus or another one? Since it was meant for Japan will it make my Z faulty. My c860 seems to have problems holding a charge. I charged it for 20 hrs for the first time and it seemed full but now it would just drain like nothing after each charge.
Anybody else having this problem?
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all I know is that my 5600 carger doens\'t work for the 700/760 ..
5600 says ouput = 5v 2a
700/760 says output 5v 1a
Scott
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Try looking for an iPaq charger for a similar \"sized\" battery brain chip. I found an iPaq auto charger on sale at Radio Shack and since it also was usingthe same ARM chip as the 5500 and it worked wonderfully.
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the 5500 charger seems to work fine on the 750.
that is also 5v 2 amps.
Peter
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i use 5V 2.6A PSU from dead ethernet 10/100Mbit hub, just cut and sold cable from original japan Z PSU
sashz
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I\'m in Australia so it\'s 240V for me. I\'m using a P to Go by Go Forward Enterprise Corp. I got it from brando http://shop.brando.com.hk/micropoweradapter_zaurus.php (http://shop.brando.com.hk/micropoweradapter_zaurus.php)
Nice and small. Doesn\'t get very warm at all. It has straight pins so I use a travel adapter for Australia plug holes. I might bend the pins myself soon.
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My 760 did fine with the stock japanese charger, but then I lost it a month ago. I\'m using an ipaq charger and a charger from peakcloudy off of ebay. Both work fine.
Are you guys using the ER-72 charger that came with the Zaurus or another one? Since it was meant for Japan will it make my Z faulty. My c860 seems to have problems holding a charge. I charged it for 20 hrs for the first time and it seemed full but now it would just drain like nothing after each charge.
Anybody else having this problem?
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Im using the http://www.shirtpocket.co.uk/cat/product_i.../products_id/96 (http://www.shirtpocket.co.uk/cat/product_info.php/products_id/96) - it cool and fits nice in my pocket - so i can sync and charge everywhere :-)
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I was using a self-made charger (generic AC adapter @ 4.5V,1200mA and some cut\'n\'solder of the Japanese adapter) and it works great. Now I have the \"power combo\" bought from ShirtPocket (battery charger and extra battery unit in one). Only downside is that you can\'t charge the Z without having batteries in the charger...
Also, if it\'s possible t charge the Z from any computer USB port, why didn\'t Sharp connect that part on the provided USB cable?
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Hi Prefect,
The standard Sync. Cable that comes with the Zaurus (C7xx/860) includes a pin input which lets you plug an adaptor into it.
If you look in the Japnese manual, there is a picture showing what looks like the Power adaptor plugged into the sync. cable.
I don\'t know Japanese, so it could say \"whatever you do don\'t plug in like this\" but it does seam unlikely
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Hi Zuber,
Well, that was kinda my point. If the Z can be charged from a standard USB port, why make the USB charge connector separate from the USB link connector? The ability to charge from a computers USB port would be nice (yes, I know it can be done with 3rd-party hw).
Also, what\'s the point of having two identical power connectors on the Z?
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If it wasn\'t obvious, that was my post above. Geeze, what\'s the timeout on this board - 5 seconds? What\'s wrong with being able to be logged in all day long? :roll:
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Now you have lost me.
Sometimes you want to take you Z with you and you take your power supply because it might need charging. Most places/companies etc. will not complain if you ask to use one of the mains sockets.
Might start getting suspicious if you connect to one of their PCs just to charge your device. Sorry but you are not allowed to connect to our network blah blah blah...
Others you might want to sync./connect so you take sync. cable.
Only alternative would be some sort of Y cable. fiddly and awkward when travelling light.
Might be missing something (not that unusual), but it makes sense to me.
Having the pin input on the Sync. cable is just for conveniance I assume. Only one bit to connect/disconnect at your base as it were.
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Forgot to ask,
what is your verdict on the combo charger. New item, so would appreciate some feedback. Would have been even better if it had a car lead as well, but other than that we thought it was a neat solution.
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Hi Zuber,
Well, that was kinda my point. If the Z can be charged from a standard USB port, why make the USB charge connector separate from the USB link connector? The ability to charge from a computers USB port would be nice (yes, I know it can be done with 3rd-party hw).
Also, what\'s the point of having two identical power connectors on the Z?
My USB/power cable:
[img]http://www.cacko.biz/~sash/slc7x0/usbpower.jpg\" border=\"0\" class=\"linked-image\" /]
just sold one wire :-)
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Look at that soldering, terrible
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Zuber,
I will be trying one of your new usb cables as soon as you post it
I ordered one today along with a couple of screen protectors.
Do they do a serial version as well? it would be handy for connecting to sun boxes and fibre switches etc.
The zthin is a bit bulky to carry around all the time.
Peter.
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Zuber,
I\'ll try to explain one last time.
My point is this: if the Zaurus can be charged through the USB port, why didn\'t sharp make their cable into an USB link+charger combo, so that your Z is automatically charged when you connect it to your computer? You would still have your normal charger, but this one would be a little bonus.
About the combo charger; I really haven\'t had time to test it that much yet - not much power used on the 10min trip to work. Also, I\'m a bit weary of using it since I only have 1300mAh batteries at the moment, and it\'s listed as taking 1600-2400. I tried it anyway and if I read the blink rate of the green LED correctly, it discharged in a 1-2 minutes and recharged in 5-10.
Will have to buy some new batteries to prevent a meltdown in the charger... :roll:
BTW, if I understand it correctly, you will effectively get a six-fold increase in battery time with four 2400mAh batteries, i.e. you can charge the 1700mAh Zaurus battery 5 times - or does some power get lost over time or as heat?
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if the Zaurus can be charged through the USB port, why didn\'t sharp make their cable into an USB link+charger combo
OK, I get it. But got a simple answer.
Save having to explain it all to consumers. Far too confusing
Please use the charging adaptor supplied.
Unless you are using the Sync cable since that will also charge your unit.
You may also use the sync cable to charge your unit from your or another PC even if you are not syncing with it.
But the PC must be switched on to charge your unit.
However, you may want to use the adaptor supplied anyway, since it will charge faster than the sync. cable.
But what if I want to sync. and charge quickly at the same time ?
etc. etc.
Regarding battery charger. Your calcs are optimistic.
2400 mAh battery at 1.25 volts each so 5 volts at 2400 mAh.
No idea abot efficencies etc. Not a battery expert, you can probably get a PhD in these things. Perhaps someone else can shed light on this. 2400 maybe output.
Plus I would guess you never actually use all 1700mAh of your battery. So you would only be calculating topups from whatever capacity is actually used before battery is shut off.
My guestimate 1.5 to 2 good additional charges.
Rapidly loosing will to live, will stop now.
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Regarding battery charger. Your calcs are optimistic.
2400 mAh battery at 1.25 volts each so 5 volts at 2400 mAh.
D\'oh! And here\'s me with an EE degree... :roll:
Still good for 20h of use though, which makes 4h/day, 5 days. Also means it will last me over the transatlantic flight this summer.
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Make sure you use a new set of batteries a few times before a big trip. Usually takes a few uses to get best out them.
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Does somebody tried to make battery expander using cellphone batteries? There should be some 5V LiOn ones on market and probably smaller then pack of AA.
Other question (as I don\'t get Zaurus yet):
Can Zaurus be charged using Nokia ACP-12E charger (5V/800mA)? This would allow me to have original power supply at home and as additional this charger.
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My point is this: if the Zaurus can be charged through the USB port, why didn\'t sharp make their cable into an USB link+charger combo, so that your Z is automatically charged when you connect it to your computer? You would still have your normal charger, but this one would be a little bonus.
Good question, but Palm did the exact same thing on their M5x series. They also did as the c7x series with Sharp is, where you can/do plug the power supply INTO the USB cable which then plugs into the unit. I guess they just thought the power supply was better than USB voltage.
Maybe the didn\'t want to be liable in case someone\'s PC put out 10 volts instead of 5.
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I use the charger from my Metricom radio modem. Right voltage, right current, and the plug fits. At least it wasn\'t a total loss after Metricom went belly up.