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Messages - V-Man

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31
General Discussion / Charge Battery In Car?
« on: November 24, 2004, 10:10:03 pm »
Sometimes (as happened with me), Radio Shack is out of the particular car charger you need.  I built my own.  If you can't get what you need from Radio Shack, let me know and I'll send instructions on how to make one.  They aren't too hard and will cost about $5-10 plus your labor.  

Also, get (beg, borrow, or steal) a multimeter and check the actual voltage output of the car charger you get before plugging it into your Z.  Some (especially the really cheap ones) do not have a regulated output and it can vary high enough to fry your Z.  Just a word of warning, never seen it happen, but have heard some horror stories here.

32
5x00 Hardware / Custom battery pack
« on: November 24, 2004, 10:03:40 pm »
There are some 5 or 6 volt LED's out there.  Most are 1.5v (I think) and require a resitor in series with the LED to lower the voltage to what the LED requires.  I think the 5, 6, and 12 Volt LED's are just a package assembly with the correct resistor included.  You would wire the LED package (LED and resitor in series) parallel with the power output after the power switch.  If you wire them in series, you will lower the voltage of power output.  Am I confusing you enough yet?  I can send you some schematics that may be easier to understand if you want.

33
Software / So, Who Has Bought Textmaker?
« on: November 23, 2004, 09:58:06 pm »
It is on my Christmas list  .  I hope I get it (if not I will have to buy it  ).  I am also interested in people's experience with it.

V-Man

34
5x00 Hardware / Custom battery pack
« on: November 23, 2004, 09:56:21 pm »
Unfortunately, you don't get 7.2 AmpHours with 4 1.8 Amphour batteries in parrallel.  You only get 1.8 (but at a higher voltage: 5.34 v 1.2).  If you wire them in series you will get 7.2, but at only 1.2 volts.  

Anyway, I get about four hours of use with backlight on full and intermittent use of WiFi card.  My batteries are not as high capacity as yours and are several years old now, so you should get slightly better use time from yours.  I also made two packs with AAA batteries.  These are about the same capacity as the Z's internal battery, but are very small and easy to cart around.  Did you find the instructions for making the battery packs I made?  If not, let me know and I'll email or pm it to you.

V-Man

35
5x00 Hardware / Custom battery pack
« on: November 22, 2004, 10:07:33 pm »
I have heard good reports on the stuff from "PeakCloudy".  That said, I have no personal experience with him though.  The chargers/battery extenders should work with no problems.  I use 4-AA NiMh batteries in my homemade packs.  The alkaline batteries could put out too much voltage and you risk damaging your Z.  I did use alkalines a few times before I broke down and bought the NiMh batteries.  I would reccomend the rechargable NiMh because the cost (over time, the initial cost is higher) will be lower than replacing the alkalines constantly.  Also the NiMh batteries have a peak voltage (when fully charged) of approximately 5.34V.  That should be well withing the tolerances of any Z.  I have used my external battery packs for several years with no problems (both on my Z and on a iPaq).

V-Man

36
Themes, Icons, and Backgrounds / Backgroups pics for lanscape and portrait
« on: November 22, 2004, 09:59:05 pm »
My bad, I didn't catch all the info in your post. . .

My experience is only with the 5500 series.  I can't afford an 860 yet (still saving and lusting though).

V-Man

37
Themes, Icons, and Backgrounds / Backgroups pics for lanscape and portrait
« on: November 20, 2004, 10:37:52 pm »
I think you can "oversize" the pics so that in each orientation, the Z will not tile the pics.  I have a 5500, so am not sure about the 860's use of the background pics.

38
General Discussion / New SL-5500
« on: November 20, 2004, 10:36:08 pm »
Welcome to the group  

I have a 5500 also.  If you have any questions, just post them here (in the appropriate forum) and you will probably have an answer very quickly.  The user support for the Z is better than anything else I have ever seen  .  I wish I had a 1G SD card like you. . .I have a 128M that lives in the Z (never even been out since purchase).  I formatted it as ext2.  If you really wish to extend your Z's capabilities, look into purchasing a WiFi card and some large capacity CF cards.  The Z makes a great personal entertainment device and the Opera web browser is one of the better offerings in the PDA field.

Good Luck and enjoy your Z.  Mine is indispensible.

V-Man

39
Accessories / Socket Mobile Power Pack
« on: November 13, 2004, 10:58:58 pm »
Hi,

To get a tutorial on the external battery packs, just search for my user name :  "v-man" and the term "battery".  You will find the information posted in several places.  I've been too lazy to make an actual tutorial lately, maybe later.  My packs are identical to some that are showing up on E-Bay from time to time.  There are some better ones out there than the ones I made, but mine are fairly inexpensive and seem to work pretty well.  I have not posted any detailed info on the car chargers.  I may have to get around to that sometime. . .

V-Man

40
Accessories / Socket Mobile Power Pack
« on: November 12, 2004, 10:41:03 pm »
The connection to the Z appears to be correct to plug into the external power port of the Z.  It looks better than the ones I made.  Let me know how your experiences with it go.  I think the battery in my Z is getting a bit long in the tooth now and replacements are difficult to find.  I have made several (4) external battery boxes, and two car chargers.  I rarely use my Z away from these, but there are those occasions. . .

V-Man

41
General Discussion / No Space on Device (SD)
« on: November 05, 2004, 10:57:31 pm »
There have been some reports of Z's mounting the SD cards as read only after a reboot or a suspend.  It hasn't happened to me, but that is also something you might want to check.

42
General Discussion / Altoids Power Pack - Is it feasible?
« on: November 05, 2004, 10:54:57 pm »
The 7805 has three leads.  One is to the input +, one to the input -, and one to the output +.  I will dig up some schematics for the entire circuit this weekend if I can find them.  If you are using it from a noisy supply, such as a vehicle's electrical system, you should use a couple of capacitors in the circuit.  If you are using a regulated supply or a battery, you can forgoe the capacitors, but I still use them just to be safe.  The regulator chip that is rated for 2A, has five leads.  I will try to get the additional information you need.  

Remember the safest way is using the regulator chips to eliminate the possibility of over-voltage damage, rather than using just a battery.  A battery's output voltage will vary according to the charge.  4 AA NiMH batteries in parallel (what I use) will vary in voltage from 5.34V fully charged to 4.1V when depleted.  Alkaline batteries have a higher initial voltage, I think that NiCd batteries have approximately the same voltages as NiMH batteries.  I have never measured lead/acid batteries voltage drops in a 6V setup (all of my ham radio stuff uses 12V and my measurements were from a bank of 4 28AmpHour batteries).  If I make enough money from off-duty jobs over the Christmas holidays, I will make a pack using the 5V regulators and either a 7.2V or 9V battery pack.  I have not tested the results when the supply voltage drops to the point that the 7805 chip drops out of regulation.  I will check that before using it on my beloved Z.  I don't know if it just stops supplying power or if it passes whatever voltage it is receiving.  If you intend to build anything to power expensive items (such as a Z), invest in an inexpensive multi-meter.  It will be worth the money (probably less than $20).

V-Man

43
General Discussion / Altoids Power Pack - Is it feasible?
« on: November 04, 2004, 11:43:36 pm »
OK, the Z wants 5V at up to 2A to power it through the power port.  There is another thread here on connecting through the internal battery connections, but I won't cover that.

With 4 AA NiMH batteries, at full charge you get 5.34V (approximately).  You do not need the diode to lower the voltage.  If you use one, you will lower the voltage to the point that the Z will not use it.  On the measurements I made (all with a fully charged internal battery), the Z never used more that 1A (actually more like 750mA), and that was with WiFi and full backlight.  If you really want the LED to indicate power on, wire it in parrallel so it won't drop your output voltage.  I really like the container you found for your power pack.  You can also use a voltage regulator chip (LM7805) and a 7V or greater battery to supply 5V regulated.  The 7805 is only rated to 1A, but you can use two in parallel to get more amperage.  There is another chip rated to 2A at 5V, but I don't remember the part number.  I have used both with good results.  At home, my desk is wired for 12V due to a ham radio addiction.  I have 75A to play with (and a 124Ahr battery backup system), so I easily made chargers for my iPaq and Z.

For additional information search for "battery" under my name "v-man" and you should find two recent threads about external and internal power packs.  Shadow Dragon (not correct spelling) has a very ambitious project using inexpensive lithium batteries hooked up to the internal battery connections.  My experience is only about the external packs.  

Let me know if I can supply any additional information for you.  It may take a day or two to respond though.

V-Man

44
5x00 Hardware / Custom battery pack
« on: November 03, 2004, 10:05:34 pm »
You also might check to see if the Z will turn on with just the external battery (without the internal battery in) connected since you are using the internal battery connections and not the external power port.

V-Man

45
Accessories / 5000D recharger?
« on: November 03, 2004, 10:03:18 pm »
The chargers for the iPaq series of PDAs work.  I have a charger for the iPaq 2210 that works without any problems for the SL5500.  The charger comes with an adaptor for the iPaq, it doesn't need the adaptor for the SL5500.  They are not very expensive.  I also remember seeing some chargers that cost about $20.00 US that appeared to be right for the Z.  The iPaq chargers are available everywhere, sometimes even on sale.  Hope this helps.

V-Man

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