Can I use a 5.2 V charger instead of 5V
The USB specification calls for the +5V supply to actually be +5V ± 5%. So any power supply that's actually running between 4.75V and 5.25V will be just dandy for changing any phone properly designed to charge from a USB power supply.
Can I use a 5V 1A charger to charge a 5V 2A device
Yes, a 5V/2A battery charged from 5V/1A charger. Yes it will just charge slowly. Yes, the charging current will be lower, and charge slowly.
Can I use a 5V 2.4 A charger with a 5V 1A device
Yes and no. If the iPhone expects 5V/1A, then you can use a different power brick that is able to give 5V/2A or 5V/2.4A. But this doesn't mean the iPhone will start to charge faster. If it is designed for just 1A, then it will continue to draw 1A even if the power brick is able to deliver 2A or 2.4A or even 100A.
Can I charge 5V 2A device with 5V 3A charger
Yes. The 'charger' (more likely a power supply) outputs a maximum current of , while the cable can handle . Since , it is perfectly safe to use the power supply with this cable.
Can I charge a 5V battery with a 5.1 V charger
Yes, it is absolutely safe to charge a device with a charger that has more current capacity than needed. Since the voltage is held constant (5V), the only factor that determines current draw is the load (another term for resistance) the device places on the charger.
Can I use a 5.3 V charger for a of 5V device
The problem you'll encounter though is the lower current output of your 5.3V power supply. If the device needs 2.2 Amps at 5V it will need a little over 2.3 Amps at 5.3V. Your 5.3V, 2A power supply won't cut it unfortunately. You will risk burning out the power supply.
Can I use A 5.2 V 2A charger in place of 5V 1A charger
Yes, it is absolutely safe to charge a device with a charger that has more current capacity than needed. Since the voltage is held constant (5V), the only factor that determines current draw is the load (another term for resistance) the device places on the charger.
Can I use A 4.5 V adapter to power A 5V device
Another thing to note: Most digital devices today that run off 5V feed that rail directly into a voltage regulator which drops it to 3.3V or lower. Those devices need the input voltage to be a little higher than the target voltage, so maybe 3.6-3.9V at a minimum. Bottom line, you should be fine with the 4.5V supply.
Can I charging 3.6 V battery with 5V
A 5v charger for a 3.6v device is very likely, maybe even guaranteed to damage your device in a serious way. You should use the charger that came with it or find an identical one. Remember that along with the output voltage rating there is also maximum output amperage, so not every 3.6v charger will work.
Can I use a 5.2 V 2A charger in place of 5V 1A charger
Yes, it is absolutely safe to charge a device with a charger that has more current capacity than needed. Since the voltage is held constant (5V), the only factor that determines current draw is the load (another term for resistance) the device places on the charger.
Can I charge 7.4 V battery with 5V
No. USB is 5V; not high enough for charging a 7.4V lithium battery. That's a 2S battery which should be charged with a dedicated 2S balanced charger for safety. Such a charger will need a supply of at least 8.4V, typically 9V, able to handle the required charging current.
Can I use a 7.5 V adapter for 5V
You should never use a significantly higher voltage rating adaptor on any kind of electrical device. If you do so you are risking damaging the equipment and anything else that you might have plugged into it.
Can I use A 5.3 V charger with A 5V device
The problem you'll encounter though is the lower current output of your 5.3V power supply. If the device needs 2.2 Amps at 5V it will need a little over 2.3 Amps at 5.3V. Your 5.3V, 2A power supply won't cut it unfortunately. You will risk burning out the power supply.
Can I use 12V 2A for 5V 2A
No, You can use a 12V 2A Adapter with a higher current rating, but not one with a lower current rating. The device draws only the current it needs, but the power supply must be able to output the maximum current that the device requires.
Can I use 4.5 V on 5V
Another thing to note: Most digital devices today that run off 5V feed that rail directly into a voltage regulator which drops it to 3.3V or lower. Those devices need the input voltage to be a little higher than the target voltage, so maybe 3.6-3.9V at a minimum. Bottom line, you should be fine with the 4.5V supply.
Can 5V charge 3.7 V
Charging a 3.7v battery with a 5v charger. Here's everything about using a 5 V charger to charge a 3.7 V cell phone battery being safe to use: It's not safe to charge a 3.7 V cell phone battery with a 5 V charger for both the equipment and personal safety.
Can I use 12V charger for 5V
Long story short, you should avoid using a 12V power supply on a 5V device. Unless there is a protective measure in the device to tackle the resultant surge of current, it is best to avoid using a higher voltage than the maximum rated voltage.
Can I use a 5.3 V charger instead of 5V
If the device needs 2.2 Amps at 5V it will need a little over 2.3 Amps at 5.3V. Your 5.3V, 2A power supply won't cut it unfortunately. You will risk burning out the power supply. I'd aim for a 5V 2.5A power supply for a little overhead to be sure it will all work fine.
Can I use a 4.5 V adapter to power a 5V device
Another thing to note: Most digital devices today that run off 5V feed that rail directly into a voltage regulator which drops it to 3.3V or lower. Those devices need the input voltage to be a little higher than the target voltage, so maybe 3.6-3.9V at a minimum. Bottom line, you should be fine with the 4.5V supply.
