I dont know if this post is dead but I was after some info. on current consumption, during use & charging, reading Kenban sig. seems to indicate 630mA to charge, another 400mA during use? depending on backlight etc.
Reason I want to know is that i'm thinking of buying a solar pack (not battery version) for charging and / or using my x51v, the idea being that my car charger plugs into the solar pack.
questions:
There are many out there and some quite expensive ones, anyone with experience? whats the best output power or current?
I take it the current consumptions are the same for the x51v as the x50v at least for battery charging?
Anyone know what the output is on extended battery packs?
I have two - a boxwave USB battery pack and a generic one from eBay.
With four 1.2 V 2500mah rechargeables, I would expect this to charge my Axim's standard 1100mah battery just fine, even when it is dead. Unfortunately, I find this is not true. Are all battery extender packs not made equal? What's the catch?
I think it makes sense that one would use a battery extender pack once the battery is very low, meaning if this doesn't work, I will soon have little reason to keep these things.
Where do you want the power to come from? This whole warning is for people who expect their computer to supply the power through the USB ports. If you are just looking for something to plug into the wall you could always use the power adapter that came with your Axim and the small little power plug. I use the original power adapter along with an inverter when I am in my car.
I am very confused by this.
I want a cable that will allow me to sync with my laptop so I can get rid of the cradle. I am not bothered about it being charged while syncing.
However, I do want to be able to charge it in the car while using it.
I keep seeing the USB sync cables with car cigarette adapter. Are there any of those that will let me sync (not charge) connected to the PC and charge AND use while connected to the car via the USB plug? Can the car supply the extra power needed through USB or it it a limitation of USB rather than the power source?
Anyone know what the output is on extended battery packs?
I have two - a boxwave USB battery pack and a generic one from eBay.
With four 1.2 V 2500mah rechargeables, I would expect this to charge my Axim's standard 1100mah battery just fine, even when it is dead. Unfortunately, I find this is not true. Are all battery extender packs not made equal? What's the catch?
I think it makes sense that one would use a battery extender pack once the battery is very low, meaning if this doesn't work, I will soon have little reason to keep these things.
Please help, and thanks in advance!
You would think 4x 1.2v would work except thats 4.8v normal charge voltage of the Axim is either 5.4v or 5.0v depending on which input pin is used. On the 5.4v pin you need a steady 5v at least. Part of the problem is that many battery extenders are made for alkaline batteries which are 1.5v that adds up to a 6v output. So that the voltage is something the Axim can handle they put a diode on the output. A standard diode drops about 0.7v which brings the voltage down to 5.3v. If your using NiMH you get about 4.1v which is much too low to charge or run the Axim. One note battery voltage is based on a LOT of factors and the higher the load the lower the output voltage.
My guess is your problem is not current but voltage (although the voltage might be too low because of the high current ).
I want a cable that will allow me to sync with my laptop so I can get rid of the cradle. I am not bothered about it being charged while syncing.
However, I do want to be able to charge it in the car while using it.
I keep seeing the USB sync cables with car cigarette adapter. Are there any of those that will let me sync (not charge) connected to the PC and charge AND use while connected to the car via the USB plug? Can the car supply the extra power needed through USB or it it a limitation of USB rather than the power source?
Heres what I would do if I were you. Get the Dell travel sync cable. This will let you sync to your laptop and will charge the axim if it is off.
For the car I happen to use this Car Adapter although I got mine with a GPS unit. You can use this with the adapter that came in the Axim box or use it with the Dell travel cable. I can use this adapter to power and charge my axim and GPS unit all at once.
A lot of people have been able to use the Pelican PSP car charger. I have read a few reports that they could not get it to work but most have been positive. This would be cheaper and they are very easy to find.
USB ports on computers are limited to 500mA but the cables and power adapters that just happen to use the port do not have this limit. I don't like the car cig adapters because most of them are not high current although a few are. Make sure if you get one that it can supply at least 1A of current if no current spec is listed do not purchase it. Although a cable that syncs but does not charge while connected to a computer cannot then use a car adapter to charge while the unit is on so they are useless in my view anyways.
Sure enough the [5V out] supplied by the usb was connected to the [5V in] for the axim usb intake like it's supposed to be, but in addition was piggy-backed to the [5.4V in] pin as well. I desoldered it from the [5.4V in].
[5V out] ------------------------[5V in]
USB end | Axim End
___X___[5.4V in]
(removed connection at X)
So now my cable will sync, but will not attempt to draw full power from the usb.
I am intending to buy another cable (not retractable so it will use a higher gauge wire I hope, or do you guys think the thin wires from the retractable cables are ok? I think it should be ok, I used to use really thin wire in my labs, with reasonable amps, never had any real signifigant drop on me) and remove all the usb data pins, and only leave the power pins, and use it with a USB power adapter. I'll see what happens. But where can I find a USB power adaptor (car or wall) that is rated to 5.4V? Most that I've found are not rated, amps or volts so I'm really not sure whats inside. Any good retailers?
This is what I want to make:
[5.4V out(from power adaptor)] ----------X------[5V in]
USB end | Axim End
------------[5.4V in]
(removed connection at X)
Any suggestions?
------------------------
Hrm...it formats weird.
Anyways, I was just thinking. The cables are sold/advertised as sync AND charge cables.
So the problem is
1. Usb from computer doesn't support that much power draw and/or can be dangerous to the computer so cannot charge from USB alone.
BUT
I want a cable that can sync to a laptop(sync only, cuz BT is wonky), and also charge in the car/from a wall outlet, and all at the same time take up less space then my cradle and the ac adaptor that came with the device.
Problem.
Sync-only cable will have the 5.4v pin disconnected from the USB power line.
Charge-only cable will have 5.4v pin connected to the USB power line which will be connected to some kinda suitable power source. (IE. not a compuer)
I was thinking 2 cables, but I just thought, why not use a switch to control the 5.4V piggyback. Cut it into the side of the axim connector, then, when connected to a computer, we can flip it off, to protect the computer. And when on the road we can switch it connected to allow charging from some type of adaptor that pushes 5.4v and supplies sufficient current.
I think I will try it! Time to go adaptor hunting.
I use the Socket Mobile Power Pack. I unfortunately have to use the Dell barrel adapter, which connects power to the 5.4v input. The Socket is rated at 7200mAh 5V; I tested the voltage, it is exactly 5.00v. The capacity is harder to test, and I don't have enough time to simply let it run and then use a proportion with the 1100mAh Axim battery. But I find it runs my Axim perfectly fine, even with the 5v->5.4v thing. Oh, and it has no trouble at all charging my internal battery and running it at the same time, with a rated output of 1.8Ah.
Strangely, the Zip-Linq retractable cable that was included with the Power Pack seriously reduces the output, and is useless, even for running the Axim when it's fully charged.
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I've been walking this power issue road for quite awhile now. I've learned along the way from people like DarkDestroyer and PocketBrain and I tend to participate in the power threads. Unfortunately, i'm super tired and don't want to rehash the info over again so what i'll do is post the results of a search using my username.
Just pick out the power threads and start reading. It's been an evolutionary and enlightening road for me to be sure. The discourse with PocketBrain was especially helpful. Check out his regulated battery extender!
- if you want to get rid of the cradle and don't care about using the Ax while it's charging then get any usb sync cable. It won't charge your Ax while it's on because of usb power restrictions limiting charging to (usually) 500mAh
- if you want to charge and use your Ax while in the car then you'll need a couple of things. A replacement or OEM high current connector dongle and a 12v car charger that's capable of pushing out 850mAh at the very least or more. There are some models out there that actually push out 2A at 5v which will work great.
I use the Socket Mobile Power Pack ...
Strangely, the Zip-Linq retractable cable that was included with the Power Pack seriously reduces the output, and is useless, even for running the Axim when it's fully charged.
I think the reason for this particular cable is (having not seen it in person):
- portability (i'm guessing)
- and the ability to charge the Ax while the Ax is off and when the Socket it getting low in power.
Just a guess though. I don't have the Socket so I can't speculate any further. If I had it I could possible make more educated guesses.
I called up Dell today, the x51v is not compatible with the (belkin) aka Dell 3-1 travel kit,
even though it is listed on the Accessories and Customize webpage of the x51v.
:mad
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The pin out of the x51v is the same as the x50v. I am not sure about power requirements but the Belkin cable should work just fine with the included car and AC adapters. Its only with the computer you should be having problems. Not sure what exact problem your having dtsouers but this is a design problem with the cable and my guess is that if you had an x50v you would still have the same problem.
The pin out of the x51v is the same as the x50v. I am not sure about power requirements but the Belkin cable should work just fine with the included car and AC adapters. Its only with the computer you should be having problems. Not sure what exact problem your having dtsouers but this is a design problem with the cable and my guess is that if you had an x50v you would still have the same problem.
I bought the Gomadic sync charge cable with the car adapter and it works great
I can even sync and charge using the USB port on my computer if the battery isnt too low on my Axim I just turn the brightness down to one notch above off and the processer to powersave then I can charge with the Axim on from 98% battery (never tried it below that)
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