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Play To Win: All NEW!! Weekly GotVapes Ultimate Contest Prize Giveaway & Chit Chat Hangout Thread, Come Hangout and Have Fun!!

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yasmin817

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Feb 7, 2014
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Thank you redsok, I'm confused :confused:

The passthrough still holds a charge but only a couple of hours and especially with how much I vape it :) It used to hold a charge most of the day


Ok... I can't stand it....

If the passthrough you are using has a good battery ( ie holds a charge so you can use it without it being plugged in )... you can certainly use the USB port on the computer... but if it doesn't have a battery or isn't a good battery... It isn't recommended and is likely to damage the computer port by trying to pull more current ( amps ) than the port is made for.

Computer USB ports, if they are following the standard... are only made to provide 500mah of current to the items plugged into them. Some ( not all ) of the newer computers can provide up to 1-1.5a ( 1a = 1000mah ) of current.

So let's cover a couple example settings...

at 4.2v with a 2.5Ω coil... your PV will need to have 1.68a of power.
at 3.7v with a 2.5Ω coil... it needs 1.48a

at 4.2v with a 2.0Ω coil... it needs 2.1a
at 3.7v with a 2.0Ω coil... it needs 1.85a

So... if your passthrough's battery is good... you should be ok using it since the USB port is only charging it and isn't being asked to provide all of the current the PV is needing to vape with.
 

Maxedout

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MoonLit_Water

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rdsok

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Thank you redsok, I'm confused :confused:

The passthrough still holds a charge but only a couple of hours and especially with how much I vape it :) It used to hold a charge most of the day

I believe you are trying to understand too much... without any way to know for certain.

First the computer side of this... unless you know different... only assume that the USB ports only can provide up to 500mah. They may provide more but without some documentation to substantiate it... it's safer to assume the least it can do instead of hoping they can provide more.

You PV controls ( so to speak ) how much power it requests of the USB port it's plugged into. Without tools to test the amperage draw... again it is safer to assume it will pull more than than normal... ( remember it may not pull more... again I'm saying to play it safe here ).


Based on the safe assumptions I just mentioned... it would be best to use the USB wall adapter. If you need to ... you can use an extension cord ( ie USB extension or power extension cord ) to make it easier to use where you want to vape at.
 
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