Such devices only draw a small current. However if you connect the same phone rated at 12W and connect it to a charger that only supplies 5W either it will charge slowly or it may damage your charger and possibly your phone.
Can I use a 5V 2A charger with a 5V 1A device.
Can i use a charger with lower voltage. Can I Use Lower Voltage Charger For My Laptop. You cannot use a lower voltage charger for your laptop. The lower voltage charger can charge the battery excruciatingly slow.
It might not support the working of the laptop either. I will highlight all these reasons and more below. What happens if you use a higher or lower rated voltage charger.
It depends on the each company policy for product design. Some companies would just stop the charging for higher and lower voltage. The other companies would be broken even slightly higher and lower voltage.
If you were using 18V AC adapter over 30V input would be dangerous even the big company laptop. However a charger that delivers a voltage that is significantly higher or lower than the laptops requirement can cause the voltage regulator to fail. You might be able to charge your battery and keep your laptop running with a lower voltage as long as the voltage regulator can keep up.
Voltage too low If the voltage on an adapter is lower than the device but the current is the same then the device may work albeit erratically. If we think back to our analogy of voltage. The device you plug into a car to power a typical wall outlet is called an inverter.
It converts the 12V DC car electricity into 120V AC electricity. You can then used your regular wall outlet. As long as the voltage matches that expected by the connected device then yes you can use an AC adapter capable of providing higher amps.
Can I use a 5V 2A charger with a 5V 1A device. Because a the voltage matches and b the amperage provided is greater than that needed you can use a 5v-2A charger with a 5V-1A device. If your charger pulls more current to compensate for the lower voltage which is likely assuming it works at all then most likely your power supply will either blow a fuse or overheat and melt.
One solution that might work for you if youre willing to do a little electronics work is a 9VAC adapter which are cheap and common as dirt plus a power resistor to drop that down to 8V. Charging a lipo pack with a L-ion charger will not fully charge the lipo. In all cases with lithium batteries.
If the charge voltage is lower than the nominal pack voltage youll not charge the battery. If it higher youll have a fire or be lucky and just ruin the cells. Be careful and good luck Paul.
Voltage and polarity should match. Amperage should match or exceed. Lower amperage might fry your charger and heat the laptop.
The voltage at the wall sockets does not drop simply because more devices are plugged in to it. The worst that could happen is a fuse would blow on the distribution board if a socket is overloaded rendering the socket dead but overloading certainly wouldnt happen if several charging units are plugged in to it. Such devices only draw a small current.
You can use a 48v charger max 546v to charge your battery up to around 75 yes. A 36v charger max 42v will only charge your battery up to a hair above dead at best though. There are some chargers that have an option to switch from 90 - 100 charge.
I got mine from em3ev. If you use a laptop charger like the USB-C charger for the MacBook Pro rated at 96W it will only draw 12W of current because thats all the phone can pull. However if you connect the same phone rated at 12W and connect it to a charger that only supplies 5W either it will charge slowly or it may damage your charger and possibly your phone.
Device Hello I am the device and I can handle power level C Charger Hello I am the charger and I can deliver power level B Device Okay I will take power level B Charger Here is power level B So yes voltage and amperage can change like that. Depending on the device youre charging and its negotiation with the charger. Let me know if you have any other questions or if we left.
Can I use a Lower Wattage Charger for my Laptop. The answer is yes. You definitely can use a lower wattage charger for your laptop you can even charge your laptop without a charger but this will directly impact the performance of your laptop itself.
If we use a 10KΩ as our R 1 resistor plugging in the values we get R 2 V R 1 V IN - V 1V 10KΩ 5V - 1V 25KΩ. So we can use a 25KΩ resistor as our R 2 resistor with the R 1 resistor being 10KΩ. So its easy to see now how any voltage can be obtained with a resistor voltage divider circuit.
Too low voltage doesnt harm - except theres no charging but 9V probably does. If you can get over 5V with the max current that your phone eats from exact 5V then have a voltage regulator which drops the extras off even 7805 with a couple of capacitors can. If you get a charger with amperage less than your original power supply you risk overheating your charger burning it and in many case your device will stop functioning andor charging.
US input voltage is 110V and most overseas voltage is 220v. We recommend that you get a power adapter that can handle 100-240V to gain flexibility and provide best charging options. Can I Use a Lower Voltage Charger.
Battery chargers come in a wide range of configurations so you may find that you have a 2V or similar charger on hand. While it is possible to charge a 6V battery with a lower voltage charger there are a few things you need to be aware of. First it will take a very long time for the low voltage charger to work on your 6V battery.
Think of it like setting up a trickle charger which will. A low voltage cut-off circuit is used on the power source. If the battery charges faster with the higher V.
The energy that goes into the battery lets say 175V 10A 175watts where charging at 138 10A would give 138watts. As you increase the voltage to get faster charging the voltage to avoid is the gassing voltage which limits how high the voltage can go before undesirable chemical reactions take place. The typical charging voltage is between 215 volts per cell 129 volts for a 12V 6 cell battery and 235 volts per cell 141 volts for a 12V 6 cell battery.
Too low voltage may do damage. Slightly too low may work AOK or at reduced current. Too low may damage equipment but not usually.
Too low may damage charger but not usually. Correct voltage rating and too high current rating is USUALLY OK - equipment will take what it needs. A very few items of equipment will object in some way.
The problem with not giving the charger enough voltage is that you could end up under charging it. Like youd charge the battery to the point where the battery gave off 9 volts rather then the point where the battery gave off 105 volts. Then the battery would only ever give off 9 volts.