So confused on which car usb charger

[div]

Need to ask, and if this is in the wrong forum, my apologies, but I went thru pages and pages and couldn't find what I needed.
I have a riva 901-usb charger says input 5v 500mA. output 4.2v 420 mA. I need a car usb charger, traveling soon. I also have a pigcig: input 5v=0.3A and output 2v=0.1A.
What car charger can I get that accomadates both of these? I have seen universal chargers but 12v-but that's too much, isn't it? last thing I need is a popped pv when I'm away from an outlet.
TIA

 

[canoeist]

I use a power inverter from Northern that was $15. It has a 110 volt output and a usb power output.

 

[div]

TY canoeist, will check it out. Think I know where I goofed, 12v is the cig lighter in car, but still want to be sure I get the right one and not blow my pv in a bad way. Still would like to know for sure my chargers will work in the car.

 

[juicejunky]

Your car USB adapter just needs to output 5V 500mA (.5A) to charge both of them. The charger itself will only take what it needs.

If you can find a 5V 1200 mA or greater USB adapter it will work with 5 V passthrus and charge your batteries. You should be able to find them where cell phones/MP3 players are sold like Radio Shack, etc.. Many of the online ecig vendors sell them too.

 

[div]

TY juicejunky, that does help! I don't have a passthru, just want the charging part of it. (passthru may come later) From what I see, 1 amp may be too little and 2 amp too much? I tried radio shack and they had 1 amp, but the guy wasn't sure and they wanted 19.99 for it. Think I can do better price wise, if not, then I'll know where to get one locally.

 

[juicejunky]

TY juicejunky, that does help! I don't have a passthru, just want the charging part of it. (passthru may come later) From what I see, 1 amp may be too little and 2 amp too much? I tried radio shack and they had 1 amp, but the guy wasn't sure and they wanted 19.99 for it. Think I can do better price wise, if not, then I'll know where to get one locally.

If you want one for just charging it should be around $6-10

Good Prohphets has it for $4.99 if you need drip tips or something else too. The 1000mah should cover anything you want to charge. Your chargers will not take more than they need. Many other e-cig venders sell them.

USB to Wall or Car Adapter

 

[mwa102464]

The 2 Amp is the one to get ! This is a good one =
Car cigarette lighter to USB 5V 2000mAh adapter
Buy now for only: $19.95

Available here = http://www.vaporkings.com/SearchResults.asp?Search=car+charger

 

[Nomoreash]

TY juicejunky, that does help! I don't have a passthru, just want the charging part of it. (passthru may come later) From what I see, 1 amp may be too little and 2 amp too much? I tried radio shack and they had 1 amp, but the guy wasn't sure and they wanted 19.99 for it. Think I can do better price wise, if not, then I'll know where to get one locally.

2 amps won't be to much, the charger will only take what it needs. The 2amp rating just means it's capable of delivering up to 2 amps if needed so I would error on that side. Better to have a little overkill than to put to much stress on it.

Madvapes as well as others have a 5v 2amp USB Adapter for a Cigarette Lighter and AC Outlet.

2 amp AC to USB Adapter, ideal for Passthroughs

Or

2 amp Car to USB Adapter

Depending on which one you need. You can also use a 5v pass through from those with no issues.

 

[div]

Thank you mwa and nomore, really helpful info. Learned more than I thought about chargers, lol.

 

[DaveP]

I have this one and it works fine for $7. As NoMoreAsh said the device will only draw the power it needs. Power in watts=Voltage x Resistance. That's why a light bulb produces heat and light according to the resistance of its internal element, even though it's plugged into a 15 or 20 amp outlet.

USB to Car Charger Adapter

 

[div]

Thanks Dave, that makes alot of sense.