Just got of the phone with Seidio. I bought a Retractible Sync & Charge cable and they told me that you need atleast a 500 Watt Power suply to charge the X50v. It seems that the X50v requires an unreasonalbe amount of juice. They told me that older PPC's, like the iPaq 2215 could charge through USB with a 200 Watt or lower power supply.
So, unless your USB port can put out a lot of juice, don't count on getting a working USB charger for the X50v.
BTW, I was trying to charge on Dell Precision 650 Workstation. And it couldn't put out enough juice to keep the battery from draining.
The Dell Axim X50v has a USB charger... Its called "the Cradle".
The Axim Recharges when put in the cradle,however, it says so in the manual that the Axim will not charge as fast as the normal battery charger.
Gotta read those manuals!!!
Dell Axim X50v...Sweetness
Just got of the phone with Seidio. I bought a Retractible Sync & Charge cable and they told me that you need atleast a 500 Watt Power suply to charge the X50v. It seems that the X50v requires an unreasonalbe amount of juice. They told me that older PPC's, like the iPaq 2215 could charge through USB with a 200 Watt or lower power supply.
So, unless your USB port can put out a lot of juice, don't count on getting a working USB charger for the X50v.
BTW, I was trying to charge on Dell Precision 650 Workstation. And it couldn't put out enough juice to keep the battery from draining.
I think you're thinking of milliamps, not watts. 500 watts would be enough to power a couple of desktop PCs, five high-end laptops, or a small car.
Ok, how did I not make myself clear? If you want a cable, that syncs and chargers your X50v through a USB port, it won't happen unless your powersupply in your machine gives enough power to the USB ports.
These cables have always been available for other Pocket PC's, like my iPaq h2215, which charges the battery and syncs though the USB port. Also, when the amber light goes on when plugged into the USB port, doesn't mean it's charging. I plugged mine in, the amber light went on, but the battery DRAINED. Down 15% in 1 hour!
So get your facts straight before telling me to read the freakin' manual.
P.S. I do meat 500 Watts. As Computer Power Supplys are rated in watts, 200, 300, 400, 500 Watts, etc...
Ok, how did I not make myself clear? If you want a cable, that syncs and chargers your X50v through a USB port, it won't happen unless your powersupply in your machine gives enough power to the USB ports.
These cables have always been available for other Pocket PC's, like my iPaq h2215, which charges the battery and syncs though the USB port. Also, when the amber light goes on when plugged into the USB port, doesn't mean it's charging. I plugged mine in, the amber light went on, but the battery DRAINED. Down 15% in 1 hour!
So get your facts straight before telling me to read the freakin' manual.
P.S. I do meat 500 Watts. As Computer Power Supplys are rated in watts, 200, 300, 400, 500 Watts, etc...
Take a second to re-read the USB sync/charge sticky thread in Accessories and it will become more clear. You don't need a 500 watt supply as that would INSANE. (Remember wattage = voltage x amperage)
However you do need a resonably healthy current source (as compared to other PPCs) as shown in the graph on that thread. The ammount of current needs also depends where your battery is in it's charging cycle.
To make a long story short, you CAN charge and use an x50v through a USB sync cable like the one from Boxwave and others but ONLY if the power source can supply enough current. I'm able to with my 5(!) watt supply here that gives 1 amp @ 5 volts.
The powersupply and your motherboard will determine how much juice comes from the USB ports. If other devices in your machine use up a lot of power, the USB ports will give less. Same if you have an underpowered Power Supply. It's the reason that new Video Cards require atleast a 400 Watt Power supply to function correctly.
I plugged the USB cable into the front ports, which are connected to the motherboard through a cable and had less power going to my X50v then when I plugged it in the back ports, which are directly connected on the motherboard.
Obvously, you dont' need 500 Watts to power a freakin PDA, but you need enough power left over so that your motherboard can allocate enough juice to the USB ports.
The powersupply and your motherboard will determine how much juice comes from the USB ports. If other devices in your machine use up a lot of power, the USB ports will give less. Same if you have an underpowered Power Supply. It's the reason that new Video Cards require atleast a 400 Watt Power supply to function correctly.
I plugged the USB cable into the front ports, which are connected to the motherboard through a cable and had less power going to my X50v then when I plugged it in the back ports, which are directly connected on the motherboard.
Obvously, you dont' need 500 Watts to power a freakin PDA, but you need enough power left over so that your motherboard can allocate enough juice to the USB ports.
Can I just stick my nose in here to say that you should check your BIOS settings, as some mobos give the option to increase power to the USB port.
Ok, how did I not make myself clear? If you want a cable, that syncs and chargers your X50v through a USB port, it won't happen unless your powersupply in your machine gives enough power to the USB ports.
These cables have always been available for other Pocket PC's, like my iPaq h2215, which charges the battery and syncs though the USB port. Also, when the amber light goes on when plugged into the USB port, doesn't mean it's charging. I plugged mine in, the amber light went on, but the battery DRAINED. Down 15% in 1 hour!
So get your facts straight before telling me to read the freakin' manual.
P.S. I do meat 500 Watts. As Computer Power Supplys are rated in watts, 200, 300, 400, 500 Watts, etc...
Given that I was politely noting the proper word, I do not apprecciate being snapped at. For the record, the power specification for a standard USB port never exceeds 2.5 watts at the plug: 5 volts times a maximum current of 500 milliamps. Whether the main power supply for the desktop is capable of 145 watts or 500 watts means absolutely nothing, since it's the motherboard that controls power to the USB ports. If you don't believe me, look it up.
need atleast a 500 Watt Power suply to charge the X50v.
Yeah, you'd really think a X50v uses more power than two Britney CPUs. Then why did Dell supply small 13w power supplies? The answer is because the X50v doesn't use that much power. The problem is that there's not enough voltage. (5v from USB vs. 5.6v (measured) from the supplied power supply) As a result, it will charge very slowly if it charges at all or even get confused and try to "charge" your USB port from the battery. This quickly drains the battery and may damage the USB controller.
If you have an Antec TrueControl power supply, try tweaking up the 5v line a little bit.
Quote:
For the record, the power specification for a standard USB port never exceeds 2.5 watts at the plug: 5 volts times a maximum current of 500 milliamps.
Actually, for the desktop computers, the USB port can often supply several amps before the circuit breaker trips.
For those chicks out there with a lot of electronics knowledge, rewire the +5v line on the USB port (cut and splice the lines for the front panel USB connectors if you don't want to mess with the motherboard) to a regulated 5v power supply tweaked to 5.6v and powered directly from the AC input. Now, you can not only charge from USB but also charge when the PC is *off*, as the power supply module is on as long as the PC is plugged in.
Now, all we need is for someone to make a USB charge cable with a voltage booster. I know one chick (Christina Mahoney) who can do the design, if only I know where she is... Maybe I'll learn to do the design. Or, for that matter, a Firewire charge cable. (With USB for sync.) Now, the trick is converting 12v (or above, as it may be with laptops) to 5.6v. Yup, it's so nice when the chicks will do the hard design work for you. If I ever get the design done, I will post it, like any good chick will.
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Originally Posted by A friend of mine who has a Linux kernel named after his girlfriend.
If I was VirtualBox, I could load my virtualization module into Hannah and boot up another kernel in the same address space.
Wow, what a lot of misinformation in this thread! Where to start?
Ok, read this. that thread shows how the power in the Axim works. Now to the misinformation in this thread:
USB provides 5v, either 100 or 500 mA. That's the standard, as defined by the USB industry agreements. No USB device is supposed to ask more than 500 mA of the port. Dell knew that the X50 drew almost all of that just operating. Try the Dell diagnostics sometime and watch the battery drain. With any CPU use at all it easily gets well over 400 mA. I've seen it hit 600 momentarily with BT on. So, Dell knew that it could NOT charge and run from just the USB port. What they did, apparently, is to route the USB power to one set of pins, then set up the device so that while on USB power only, it either ran, or charged, but not both. Then they set up a different set of pins for power through the cradle/Dell sync cable, and provided the external power cord with 2410 mA. Those pins allow you to charge AND run at the same time.
Along come the third party vendors who have no clue what Dell did. Some tested the USB cables and found the USB pins. They made cables to match Dell--charge OR run, but not both. Others tested the cradle and found the pins for external power and routed the USB power to those pins. But the problem is the standard for USB is only 500 mA. As Kenban documents in the thread I told you to read (you DID read it, didn't you?) the charging circuit draws either 925 or 630 mA with a relatively dead battery, plus the 400 mA to RUN the thing. That means that it draws somewhere between 1 and 1.5 amps at 5 volts, well beyond the USB port's 500 mA.
But the Axim doesn't KNOW that the power supply is inadequate because the power is coming in on the EXTERNAL pins, and the design of the Dell power supply is for 2.41A. So it draws the power it needs to run the charging circuits from the system, meaning it uses the battery to charge the battery, a losing proposition every time. In that event the battery will actually discharge FASTER when plugged in than when disconnected.
Voltage is acceptable at either 5 or 5.5 v. Five is on the low side, so it has to be 5, not 4.9. When you draw more power from a cheapo power supply than it is designed to provide, the voltage drops, the Ax sees the drop and stops using the power. If you have brightness set for lower on battery and higher on power, the symptom is the screen flickers. Cheapo chargers at 5.5v have a bit more wiggle room, so they might last longer, but the continued heavy draw will eventually cause them to fail through overheating.
So, what's a user to do?
1. When using USB only, either run, or charge, not both. As an aside, if you DO manage to coax more power out of the USB port, stand by for a MoBo failure. TAANSTAAFL. (There Ain't No Such Thing As A Free Lunch.) Remember, the components in the USB port were designed to provide a maximum of 500 mA. You MIGHT get more, but sooner or later you'll pay for it.
2. When using a third party charger with USB, be very, very careful and watch what it does before committing to it. If it draws on the battery heavily, use it either only to charge or if you do use it to sync, don't connect it for for long.
3. Get a good 1-1.5a 5-5.5v power supply. Since you're paying for it, you might as well get a Dell.
For the car, get a good power supply. One good option is an inverter then just use the Dell provided wall power. Another is a cradle that provides at least 1A of power. The Seidio G2500 does that. It also won't take a 2200 mAh battery, so you are restricted to the 1100mAh one, which means that the 1A will be adequate even if the battery is pretty depleted. (No I don't work for the company, but I did test one and have seen others report success.)
Hope all that helps clear the air. My apologies for making it so long.
I just started the design for a 12v to 5.6v converter for charging Axims and other PDAs from Firewire or a 12v battery pack. I'm considering the MAX724 as it's a high efficiency voltage regulator. http://pdfserv.maxim-ic.com/en/ds/MAX724-MAX726.pdf
There is already a starting point (the reference circuit).
Changes necessary include: a protection diode for reverse polarity protection, larger capacitors for better voltage regulation, and change the resistor values to slightly increase the voltage.
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Originally Posted by A friend of mine who has a Linux kernel named after his girlfriend.
If I was VirtualBox, I could load my virtualization module into Hannah and boot up another kernel in the same address space.
Good to know. The Seidio cable actually drains the battery ALL the time, even when the unit is off.
I'll just have to order another cradle, thankfully the charger that came with the HP Bluetooth Headphones also charges my dell.
It's NOT the cable, it's the USB port not providing the power required. If your battery were above the point where it draws more than 500 mA, and if your USB port provides that much, then it should not discharge. Unfortunately, the battery draws 630 mA at 67% or so, so the level has to be somewhere above that before the draw is below 500 mA. I would suspect your USB and the Seidio could charge the battery if it started at 80%. That assumes your USB port provides the 500 mA Optional level. If it only supplies the mandatory 100 mA, then you are pretty much toast.
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Take a second to re-read the USB sync/charge sticky thread in Accessories and it will become more clear. You don't need a 500 watt supply as that would INSANE. (Remember wattage = voltage x amperage) 
