Ultimate Mobile Battery for 5v USB PassThrough?

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voltaire

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Well, in a few more posts, I'll show you the picture of the 8800 they sent me! (Still too new to post pics). The thing's like 3.5 to 4" long by 3" wide and about 1/2" deep (roughly). Not much bigger than a business card (although much thicker). Never say never my friend- technology flies.

It's not the size I doubt, it the mAh rating. My Kensington is exactly 4" x 2" x 3/8" with 1800mah. The one you refer to is an inch wider and a little thicker, so I'll stand by my (generous) 6000 mAh guesstimate. 8800 mAh, not a chance.
 
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voltaire

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The Tekkeon battery pack is 4,000 mAh and is 3.3"x2.1"x1.1". Small if you ask me for what it does.

Wow is its over double the mAh and smaller then yours...

How do you figure smaller? It's more than TWICE as thick, closer to three times as thick.

TWO kensingtons put together is still thinner than a pack of cigarettes, and somewhere between a regular and 100's pack size as tall.
 
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o4_srt

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So you notice a HUGE difference, eh? See, that's why I am after the battery pack can deliver the higher current.

yes, significant difference between 5v USB powered passthrough, which cannot supply the current necessary, and a 5v power supply with necessary current.

Currently, I can't tell much difference between my 5v rated USB passthrough, and the stock 510 battery.

Better flavor and huge vapor cloud for starters, especially using 80/20 VG/PG
 

DoOrDie

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May 10, 2010
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yes, significant difference between 5v USB powered passthrough, which cannot supply the current necessary, and a 5v power supply with necessary current.

Currently, I can't tell much difference between my 5v rated USB passthrough, and the stock 510 battery.

Better flavor and huge vapor cloud for starters, especially using 80/20 VG/PG

80/20 VG/PG? Or did you mean 80/20 PG/VG (which is what I've seen some sites recommend when mixing your own juice for starters)?
 

DoOrDie

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Wow, cool. I just got word from my contact in China that they are going to send me one of these 8800's as a sample on the 17th of this month. Of course it will probably take a while to get here. I'm not even sure how much they are going to charge me or if they are going to charge me at all for the sample. They, and me, just want to see how well it works with the 5v PT.

And here it is, hot off the presses, not even released yet: (see pic)

He said they would even do it in black, as I requested, with belt clip and wall and car charger! Woot! :toast: Gonna be very interesting to try this!
 

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chev327fox

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Wow, cool. I just got word from my contact in China that they are going to send me one of these 8800's as a sample on the 17th of this month. Of course it will probably take a while to get here. I'm not even sure how much they are going to charge me or if they are going to charge me at all for the sample. They, and me, just want to see how well it works with the 5v PT.

And here it is, hot off the presses, not even released yet: (see pic)

He said they would even do it in black, as I requested, with belt clip and wall and car charger! Woot! :toast: Gonna be very interesting to try this!

Nice... is that because they think you are actually serious about getting 500 units if you like it? If so then that is one hell of a scam to get one fro free.
 

Quick1

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I must disagree with a true 510 being 2-2.1 ohms, Mine all read 2.5 to 2.6 using a fluke 87V multimeter that gets calibrated every year.

If you're shooting for 5 volts, anything over 1.5 amps will do the job.

Mine all ready 2.5 as well. I don't know where people get the 2.1/2.2/2.3 numbers from.... oh well. And my attys are real JoyE, also I have the 3ohm attys and they read 3 all day long so my meter isn't wrong.

Yes I have used a Pass Through on this and it works great!!! It is a steady 5.3volts even under load and it works better on my Pass-through then any of the wall adapters I have that are 1.5-2amps. I only posted it to help, it is one hell of a battery pack but it might not be what you want but I know for a fact that it will fill your needs and you would love it.

I've been through a bunch of Joye 510s. The great majority of them measure (Fluke 88v and my cheapo RS) 2.2 ohms. Some number of them at 2.4, a few at 2.3 and 1 at 2.1 Just my experience.

For the battery pack. Didn't you say it was protected? I believe you're going to be trying to draw a lot more than 1.8 Amps.

5.5v, 2.2 ohms ==> ~2.5 Amps
5.0v, 2.2 ohms ==> ~2.3 Amps
5.5v, 2.5 ohms ==> ~2.2 Amps
5.0v, 2.5 ohms ==> ~2.0 Amps

If the protection circuit protects against over current then it needs to trip above 2.5 Amps. If it trips just above 1.8 Amps then it won't work at all with a Joye 510.

If the protection circuit doesn't trip then it's probably going to draw the voltage down to ~4.0v. That would be about the same as a 3.7v mod. And you'd be overdriving the battery pack and likely shorten the number of charge cycles in it.
 

o4_srt

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I've been through a bunch of Joye 510s. The great majority of them measure (Fluke 88v and my cheapo RS) 2.2 ohms. Some number of them at 2.4, a few at 2.3 and 1 at 2.1 Just my experience.

For the battery pack. Didn't you say it was protected? I believe you're going to be trying to draw a lot more than 1.8 Amps.

5.5v, 2.2 ohms ==> ~2.5 Amps
5.0v, 2.2 ohms ==> ~2.3 Amps
5.5v, 2.5 ohms ==> ~2.2 Amps
5.0v, 2.5 ohms ==> ~2.0 Amps

If the protection circuit protects against over current then it needs to trip above 2.5 Amps. If it trips just above 1.8 Amps then it won't work at all with a Joye 510.

If the protection circuit doesn't trip then it's probably going to draw the voltage down to ~4.0v. That would be about the same as a 3.7v mod. And you'd be overdriving the battery pack and likely shorten the number of charge cycles in it.

you are forgetting to account for cable loss and resistance circuitry in the passthrough. 5.5 volts does NOT yield 2.5 amps, i've ran my power supply through an ammeter, and it was about 1.6 amps on a stock 510 atty. This is using test equipment that tests extremely sensitive electronics that are used in a major defense project, calibrated every year.

The math says it should draw the current you provided above, but again, this does not account for all other aspects of the circuit, just the atty.
 

chev327fox

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you are forgetting to account for cable loss and resistance circuitry in the passthrough. 5.5 volts does NOT yield 2.5 amps, i've ran my power supply through an ammeter, and it was about 1.6 amps on a stock 510 atty. This is using test equipment that tests extremely sensitive electronics that are used in a major defense project, calibrated every year.

The math says it should draw the current you provided above, but again, this does not account for all other aspects of the circuit, just the atty.

Cable los and stuff like that isn't even enough to talk about if you ask me.

And the only reason he is set on that device is because of the mAh but he wont get the amperage or voltage out of it unfortunatly... but he probably wont notice because he probably has never had a powers source that was rated for what he needs so he thinks that it the way it is supposed to hit.
 

Quick1

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The math says it should draw the current you provided above, but again, this does not account for all other aspects of the circuit, just the atty.

The unaccounted for resistance would be the pass through itself. I'm assuming that is comprised of a USB connector, cable, and 510 connector threads. I would not expect any significant resistance unless there are some really bad solder joints?
 

o4_srt

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The unaccounted for resistance would be the pass through itself. I'm assuming that is comprised of a USB connector, cable, and 510 connector threads. I would not expect any significant resistance unless there are some really bad solder joints?

you can almost guarantee bad solder joints in most consumer electronics. I'm used to class 3 (J-Spec), and sometimes I open up things laying around the house, and am a appalled by how terribly they are assembled.

when you're dealing with such low resistance to begin with, every little bit hurts. half ohm here, half ohm there adds up quick
 

DoOrDie

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ok, so the latest on this is that no, they are not sending it for free. :blush: Like anyone is going to scam the Chinese? :laugh:

But scamming was never my intent here. I just want the longest lasting battery I can find for my 5v PT. The bigger problem is the payment (having to go through Western Union, who charges 28% :mad:), and shipping, which costs more than the unit.

So the question is do I want to fork out the money to be the guinea pig for this thing. Dunno. I want it, just don't know if I want it that bad, when a 2A wall adapter and 2A car adapter will cover 90% of my needs. Hmm. Someone talk me into it.
 

chev327fox

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ok, so the latest on this is that no, they are not sending it for free. :blush: Like anyone is going to scam the Chinese? :laugh:

But scamming was never my intent here. I just want the longest lasting battery I can find for my 5v PT. The bigger problem is the payment (having to go through Western Union, who charges 28% :mad:), and shipping, which costs more than the unit.

So the question is do I want to fork out the money to be the guinea pig for this thing. Dunno. I want it, just don't know if I want it that bad, when a 2A wall adapter and 2A car adapter will cover 90% of my needs. Hmm. Someone talk me into it.

I wasn't insisting that you were "trying" to scam them but if they were going to send you one for free it would be because they think you are interested in buying in bulk so it would be a dishonest thing to do to accept it if you have no intention of buying in bulk like they think you might. I'm not saying you were tying to do that but if that is what they think you should let them knopw that you have no intention of buying more then one or a few and see if they still offer to send you one.

With that said if that pack doesn't do over 1.8amps then there is no reason to get it unless you only like 3.7volts... just my opinion.
 

voltaire

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I just want the longest lasting battery I can find for my 5v PT.

My :2c: is that your quest for the longest lasting is misdirected. As I've said, the longest lasting will also be the biggest. Why not just strap a car battery to your back? Anything that can last you a whole day (awake hours) and that you recharge while you sleep should be sufficient. Anything more is just going to be unnecessary bulk to lug around. Unless of course, your talking about a solution for when you are "off the grid" like camping or whatever. But in that case, I personally wouldn't want to carry around a corded PT and a BIG batt pack - better to use the battery pack for recharging traditional ecig batts, or just use a big batt mod with a few sets of batts.
 
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