Can I use 5V adapter for 3.7 V battery
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 a 5V adapter to power a 3.7 V device
In order for current to flow there needs to be a useful voltage difference. There is a voltage difference between 5 and 4.2 and 3.7. If you charged with 3.7 there would be no voltage difference, no current and no charging. Less than 4.2 volts and it won't charge fully.
What voltage should a 3.7 V battery
The 3.7v lithium battery is a lithium battery with a nominal voltage of 3.7v and a full-charge voltage of 4.2v. Its capacity ranges from several hundred to several thousand mAh.
Can I use 5V adapter in 3.6 V
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.
What happens if you charge A 3.7 V battery with 5V
You can't just connect 5v to a lithium-ion battery and expect it to work. What will happen is the cell will reach 4.2v or fully charged, then continue to rise, much past 4.3v it will start to heat up as it cannot accept any more charge. If you carry on the cell will vent, and might even catch on fire.
Can you charge A 3.7 V battery with A 5V phone charger
Short answer: No, because your "5V USB Charger" is not a charger – it's a power supply. No, you can not. You must read this: Safety Concerns with Li-ion. (There is a reason why R/C enthusiasts put Li batteries into flameproof bags, when they charge them.)
Can I use 5V to A 3V device
It could result in immediate failure that could result in smoke or even fire.
Can I charge 3.7 V battery with 6V charger
It is possible to charge your 3.7V lithium ion battery using a 6V lithium battery charger, provided that the battery has a properly functioning protection circuit board. The protection circuit board helps the battery prevent overcharging, which can be pretty dangerous.
Can you charge a 3.7 V battery with a 5V phone charger
Short answer: No, because your "5V USB Charger" is not a charger – it's a power supply. No, you can not. You must read this: Safety Concerns with Li-ion. (There is a reason why R/C enthusiasts put Li batteries into flameproof bags, when they charge them.)
Can we charge 3V battery with 5V charger
Don't do this. Depending on the 3V supply, too much current might damage the battery. Why do some phones need a 5V charger although the battery needs 3.7V only Not just some phones but virtually all phones using a one cell lithium ion battery of nominal 3.7 volts.
Can I use 5V for 3V
It could result in immediate failure that could result in smoke or even fire.
Can you use 5V for 3.3 V
The easiest way to convert a 5V analog signal to a 3.3V analog signal is to use a resistor divider with an R1:R2 ratio of 1.7:3.3.
Can I use 5V instead of 3V
Very rarely you will find that this works, but only if the difference is small, and usually only on simple appliances or products. Your fan is a simple device, and the parts used may be able to tolerate the higher voltage… but be warned from what I said above.
Can I charge 18650 with 5V
It can support up to 2.1A charging current under 5V input power, and 0- 3.5A output at 5V. The battery full charging voltage is 4.2V.
Can I use 5V charger for 3V battery
Probably not directly. A 5V charger has a specified voltage. If 5V are applied to a discharged Lithium-Polymer battery (around 3V), the current going into the battery might be several times over the maxium tolerable charging current for a 380mAh battery, which would be 380mA (better is 100mA).
Can I use 5V charger for 6V battery
Can I Use a 5V Adapter to Power a 6 V Device. No, a 5v adapter is never recommended to power a 6v device. Because we need a voltage higher than that of the battery before it will charge properly.
What happens if you charge a 6V battery with a 5V charger
Secondly, a lower voltage charger will never be able to produce enough power to fully charge your 6V battery. It might charge your battery enough for you to get your device jump started, but that's about it.
Can I charge 3.7 V Lipo battery with 5V charger
Lithium battery with protection circuit board can be charged with 5V voltage(4.8V to 5.2V can be used). For 3.7V lithium batteries, the charge cut-off voltage is 4.2V and the discharge cut-off voltage is 3.0V. Therefore, when the open circuit voltage of the battery is lower than 3.6V, it can be charged.
Can I use 5V for 3V LED
You need to have that order of "leeway" voltage across the resistor in order to allow for variations in the LED voltage, so for an LED with a conduction voltage of 3 V, it is generally not practical to operate it from less than 5 V.
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 charge 5V 2A with 5V 3A
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.
Will 5V work with 6V
Most of the times it won't. Cannot tell for sure without checking the internal hardware of the repeater. But if it works without generating heat it will be fine as far as I know. The 5V adapter might generate more heat than the 6V as sometimes the lower voltage will increase the current draw.
Can I charge 3.7 V battery with 12V charger
Originally Answered: Can I charge 3.7volt lithium ion four battery in series with 12 volt charger No, You can't do it by 12v supply but you can do it if you add some proper regulation and auto-cutoff circuit in between the 12v supply and the battery.
Can I use 5V instead of 6V
No, a 5v adapter is never recommended to power a 6v device. Because we need a voltage higher than that of the battery before it will charge properly. As a device is required to run from the voltage rating it is given, hence if we use a 5v adapter for a 6v rated device, the device won't start at all.
Can I use a 5V for 3V motor
If the motor really takes 50mA at 3V (motor specifications are very unreliable/difficult to read) then it will take a lot more if you feed it 5V. So yes damage is pretty much inevitable. 50mA will be the no-load current I suspect, which isn't useful for any design calculations. can measure this with a meter).
