PT tripping protection in my kensington

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rfw2003

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And a short is created when juice gets on the adapter threads.

The Kensington works fine.

I am not disputing that fact as it could very well be an issue as well. I was just pointing out that the kensington pack is marginal at best for use as a power pack for our purposes, because without going into tolerances the kensington is only capable of 1.5amps of current draw and attys with a resistance of 3.2 ohms are going to want to pull 1.5625 amps and that is just the atty itself not including the resistance of the wiring to and from the atty and the resistance of the switch itself. Now as with all mass produced consumer products that are powered by Li-ion type batteries they are going to have an over current protection system on them, and I also would venture to say that there is also an over current protection on the voltage regulator circuit as well. What the tolerance level of this protection circuit is I have no clue as I don't have several here to test to get an average.

So can a Kensington powerpack work??
Yes, but you may have issues with it especially with atty's that have a lower resistance.

Is it an ideal pack to use??
No, since it's barely able to supply the current asked of it.


But right now we don't have much choice in the arena of usb power sources because most have a limit of 1amp and a few such as the kensington and the APC have a higher working current load.



R.F.
 

quovadis

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quovadis

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Florida USA
I am not disputing that fact as it could very well be an issue as well. I was just pointing out that the kensington pack is marginal at best for use as a power pack for our purposes, because without going into tolerances the kensington is only capable of 1.5amps of current draw and attys with a resistance of 3.2 ohms are going to want to pull 1.5625 amps and that is just the atty itself not including the resistance of the wiring to and from the atty and the resistance of the switch itself. Now as with all mass produced consumer products that are powered by Li-ion type batteries they are going to have an over current protection system on them, and I also would venture to say that there is also an over current protection on the voltage regulator circuit as well. What the tolerance level of this protection circuit is I have no clue as I don't have several here to test to get an average.

So can a Kensington powerpack work??
Yes, but you may have issues with it especially with atty's that have a lower resistance.

Is it an ideal pack to use??
No, since it's barely able to supply the current asked of it.


But right now we don't have much choice in the arena of usb power sources because most have a limit of 1amp and a few such as the kensington and the APC have a higher working current load.



R.F.

I also bought the APC, to compare to the kensington.
It's slightly larger.
It never trips.
The charge does not keep as long as a kensington.

All in all , the K is a better unit...but lower ohm atty's make it trip...

I also bought the Tekkeon, but waiting for them to send me an USB adapter.
It has no USB output...Grrr:mad:
 

quovadis

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I'm looking into making some power packs that will handle the current just fine. I was thinking something along the lines of 3 amp capability so it has plenty of room to spare and around 5000mah capacity

rough size would end up being around 3"x3"x1" and approx 10 to 12 ounces in weight

R.F.

I will buy 2 ...how much?
 

Shan123

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Y'all work this out, please, and wake me when you've figured it out and tell me how much it'll cost? My eyes glazed over reading this, no offense and gobs of respect. I've had 2 underperforming passthrus and have concluded it has to be my computer. It sounds like I would constantly trip a Kensington; I vape without letup at times and have a nasty habit of over-juicing.

There. Posting this ignorant post will subscribe me to this thread and I can keep an eye on you maniacal geniuses with your amps and your mahs and your resistance.
:)
 

j4g3rb0mb3d

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Jun 9, 2009
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Well, Ive taken some time to try to keep the connectors dry and using ohm-appropriate atomizers, and I'm still dismayed. It is very tedious to keep a dripping device, such as a PS PT, and its' connectors clean and dry. I only use my Kensington Power Pack as a PCC for my M201 while i'm out, and as a capacitor for the PT while it is plugged into my computer while I'm home. It sucks taking the PT out and having the power pack die out after about 10 puffs.
 

TDM

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Apr 5, 2009
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Well, Ive taken some time to try to keep the connectors dry and using ohm-appropriate atomizers, and I'm still dismayed. It is very tedious to keep a dripping device, such as a PS PT, and its' connectors clean and dry. I only use my Kensington Power Pack as a PCC for my M201 while i'm out, and as a capacitor for the PT while it is plugged into my computer while I'm home. It sucks taking the PT out and having the power pack die out after about 10 puffs.

Saying using as a capacitor for your PT when plugged into your computer may be the key. Are you plugging your kensington into your computer to charge it?? If so use the wall outlet adapter. Your actually draining it as fast or faster than you are charging it.
 

TDM

Moved On
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It is plugged into my computer, but it really hasn't mattered if I charged in via the house plug or the computer. It dies when it is unplugged from anything after about 10 puffs.

I can usually use mine 5-6 hours unplugged. If I charge the pack from the computer it dies almost instantly when unplugged. It is just that your taking the power out faster than the computer can put it back.

If it is a constant problem though. May want to contact kensington they have a one year warranty on them.
 

markarich159

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Jun 30, 2009
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O.k. the issue is on the Kensington is that it's barely able to supply the current that the atty is asking of it, that is why it's tripping the protection. at 3.2ohm resistance of the atty and 5 volts from the pack it's wanting 1.5625 amps of current. The Kensington is only rated at an output of 1.5 amps of current. You need a pack that is capable of at least 2 amps or 10 watts of power to be able to use your passthrough with out any issues. The lower the resistance of the Atty the more current it's going to want to draw from the power pack.

R.F.

Ok R.F. Explain this one. If you've been following my posts on this and another thread you know that my new PS 510 PT has tripped(not worked at all) on 2 AC/USB adapters(both 5V, one 500mA, the other 1A). The only thing it had seemed to be working on so far was my 1.5 Amp Kensington. Now about 10 minutes ago, I got the stones up to actually try and plug it into my work desktop computer's USB 2.0 port. To my suprise, not only did the motherboard not fry, the PT actually worked, and well. Not as good as through the Kensington, but still much,much better then a standard Joye 510 battery or PT. How is this possible, why didn't it instantly fry the USB controller. My understanding was that, without additional software, the USB 2.0 port only supplies 100mA.(This seems to be MUCH more then 100mA). What exactly current is the computer's USB port providing? Thanks in advance.
 

rfw2003

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O.k. To explain a little further on the USB ports on the computer why some may work to some extent and others either will not work or may fry the controller.

Some controllers on the cheaper boards are built exactly to USB specs meaning that it will only provide 100ma current unless it has something to tell it to provide 500ma.

Some controllers on lower end boards do not have a current limit protection on them at all so if you plug in a device that demands a much higher current you risk damaging your USB controler. While this is rare anymore and limited to very few boards now.

Some motherboards on the other hand are built to exceed the USB specs and will provide much more current then what the specs are for USB regardless if there is software there to tell it to or not. I have seen some that are able to supply as much as 1.1 amps in my searches.

I'm not saying all are capable of doing this so if you want to use the USB port on your computer do so at your own risk.

R.F.
 

markarich159

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Jun 30, 2009
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O.k. To explain a little further on the USB ports on the computer why some may work to some extent and others either will not work or may fry the controller.

Some controllers on the cheaper boards are built exactly to USB specs meaning that it will only provide 100ma current unless it has something to tell it to provide 500ma.

Some controllers on lower end boards do not have a current limit protection on them at all so if you plug in a device that demands a much higher current you risk damaging your USB controler. While this is rare anymore and limited to very few boards now.

Some motherboards on the other hand are built to exceed the USB specs and will provide much more current then what the specs are for USB regardless if there is software there to tell it to or not. I have seen some that are able to supply as much as 1.1 amps in my searches.

I'm not saying all are capable of doing this so if you want to use the USB port on your computer do so at your own risk.

R.F.

Thanks R.F. I never thought buying a PT could be this complicated.
 
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