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USB Car Chargers
WaterfallSandSun
Registered User regular
Registered User regular
The only knowledge I have on electricity is that if I touch it directly, it will travel throughout my body giving me and unpleasant feeling for the duration of contact.
Onto the point:
I have (or will have) a car charger with 2 USB slots within it, allowing me to charge two devices with one cigarette lighter socket.
The cover for the cigarette lighter socket is labeled "12v"
The specifications of the USB car charger with two (USB) slots are -
"Input Voltage: DC12-16V / Output Voltage & Current: 5V 1A"
The specifications for the wall charger for the cell phone that will be utilizing one of the car accessory's USB slots are -
"Input: 100-240VAC~150mA 50-60Hz / Output: 5.0VDC 850mA"
Will everything be compatible (lighter socket + USB lighter socket accessory + cell phone utilizing it for charging) together? Will my phone using that setup charge faster than with the provided wall charger? Will that setup shorten my cell phone's battery life and/or damage it?
Thank you for your help.
Onto the point:
I have (or will have) a car charger with 2 USB slots within it, allowing me to charge two devices with one cigarette lighter socket.
The cover for the cigarette lighter socket is labeled "12v"
The specifications of the USB car charger with two (USB) slots are -
"Input Voltage: DC12-16V / Output Voltage & Current: 5V 1A"
The specifications for the wall charger for the cell phone that will be utilizing one of the car accessory's USB slots are -
"Input: 100-240VAC~150mA 50-60Hz / Output: 5.0VDC 850mA"
Will everything be compatible (lighter socket + USB lighter socket accessory + cell phone utilizing it for charging) together? Will my phone using that setup charge faster than with the provided wall charger? Will that setup shorten my cell phone's battery life and/or damage it?
Thank you for your help.
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Not categorically true. Grab both ends of a AA battery, doesn't do a thing.
yes
Most likely yes.
Not likely at all.
Depends on the phone.
generally speaking, most phones charge off of 5V. some phones are designed for higher voltage/quicker charging but these are pretty uncommon (Note 4 has a 9V charger). both of your chargers output the standard 5V.
if you have a smartphone, it will draw between 1A and 2A. iPhones take 1A. iPads take 2A. for other devices it depends on the model, but usually the charger provided in the box is the max current the phone will draw
if you have a non-smartphone or a smartphone with a smaller battery it could be designed for less than 1A. yours is .85A so my guess is that's the max current it'll draw
on top of that, phones won't draw more current than they're designed for (again, generally). so an iPhone which draws 1A won't charge any faster on an iPad charger which is 2A. but an iPad will charge slower on an iPhone charger because it only draws 1A.
the short version is: input power doesn't matter, output power matters; the phone will only draw current it's specified for, or what the charger provides, whichever is lower.
I wouldn't worry about battery life. charge as needed. there's stuff you can do to eke out some extra battery life but it's generally more trouble than it's worth. avoid leaving it in your car for extended periods on very hot or very cold days, that's about the only thing I'd recommend to avoid shortening your battery life.
No it will not damage the battery, that's why the phone manufacturers put limits on charge current.
I imagine it'll become more common in the coming years.