Am i doing this right? when i plug in a 12v laptop charger i get 12.19 volts on the high side and 11.90 on the low side? is this right?
1819816
Your laptop charger is a switching supply and connecting it to PWM controller may not work. Try connecting the controller to a good DCsupply such as a 12v battery and see if it works. Be sure the input polarity to the controller is correct. The controller is designed to operate from a clean DC supply and control a DC motor. Give some feedback on your application.
1833820
Sorry,I don't have a good answer. I gave the set to my son in a different state. The Voltage for the charger should be printed on it. I only used it with 120 Volt.
1549035
I used a converter with built-in plug adapter. If you just change the plug you still have too much voltage (220) and could fry your laptop.
1670891
Mine read just at 12V when received so I didn't charge any more before installing in alarm system. It is working fine.
1269820
I am using this on a Sony VAIO. Right above the power (port) on my laptop it says 19.5v. I hope this helps.
1959558
NO THIS IS A 2100mA - INPUT(12V-24V) OUTPUT DC 5.0 V +/- 5% - this is the information on the label on the charger - you would have thought that CrazyOnDigital would have had this information - hope this helps.
809040
Short answer is NO. The output from this unit's USB port is limited to 5V 500mA, or 2.5W. A typical laptop AC charger is around 19V 6A, or over 100W. You cannot charge a laptop through its USB port, anyway.
2099870
Mine also says 110 V on the side. If it truly is rated for 220 V then all you would really need is a 110-220 V converter. That is how I powered up my laptop when I went to Israel last year. However, I would suggest going through the manual and see if it says anything. Are you using it in the U.S.? If so, you should have access to a 110V outlet...
1599695
I've done it from an OLD 0.5A/500mA usb wall charger. Computer usb ports put out 5v at 0.5A/500mA, whereas most newer usb chargers put out 5-5.1v at 1A or more, so the battery may not be able to handle the higher amperage.
322381
Andrea: By now, you many already have answers from others, but in case you do not, the charger can only be operated on standard household current which is 120V. I do not see a "V" on my charger so I cannot help you with that part of your question.
1097329
Do you have your original charger if so check the voltage output it should be around 19 v and 3 amps. if the voltage matches then you will be fine. If you don't have the original then go online and look up specs from hp. And then it will tell you the charging specs and if they match it's good. a charger can be a lower voltage then specified but it will charge slower. You don't want the amps to be higher then your or8ginal
160511
The external charger does show 110~240. I believe any charger you use to connect it to should control the voltage and or amperage. I use a USB connector to my lap top generally so I know the output is not very high. Charges fine.
2211074
The output voltage on the charger I have is 2.8 amps DC (nom 2.8 A---) whatever that means. I have a 12 volt battery and so far it's working fine for me. It is a 1 hour battery charger. Hope this helps, Duane
1575024
Aren't *all chargers used in the US 110v? In other words, yes, I think it will. Particularly if it's a charger that *came with the Lenovo. If it isn't, even if the plug fits, you might have a problem not so much with voltage as with wattage. In my experience I've run into 90W and, I think, 70W chargers. If the BIOS expects 90, it won't work with some other number - or perhaps the charger (aka power supply) will *power, but not charge. I looked around quickly, and those Lenovo chargers can be bought for anywhere between $45 and $9. $45 is ridiculous when the whole laptop can be bought for $120 - in other words, don't buy from ridiculous people :). Aren't *all chargers used in the US 110v? In other words, yes, I think it will. Particularly if it's a charger that *came with the Lenovo. If it isn't, even if the plug fits, you might have a problem not so much with voltage as with wattage. In my experience I've run into 90W and, I think, 70W chargers. If the BIOS expects 90, it won't work with some other number - or perhaps the charger (aka power supply) will *power, but not charge. I looked around quickly, and those Lenovo chargers can be bought for anywhere between $45 and $9. $45 is ridiculous when the whole laptop can be bought for... » Read More Aren't *all chargers used in the US 110v? In other words, yes, I think it will. Particularly if it's a charger that *came with the Lenovo. If it isn't, even if the plug fits, you might have a problem not so much with voltage as with wattage. In my experience I've run into 90W and, I think, 70W chargers. If the BIOS expects 90, it won't work with some other number - or perhaps the charger (aka power supply) will *power, but not charge. I looked around quickly, and those Lenovo chargers can be bought for anywhere between $45 and $9. $45 is ridiculous when the whole laptop can be bought for $120 - in other words, don't buy from ridiculous people :). « Show Less
1328608
Input: AC120V 60Hz 6WOutput: 6.0VDC 300mAC UL US listed 18CR E240776Hope all that helps! Makes no sense to me but it's whats on the plug of the charger!
147145
both, but keep in mind that the default battery charges from 12v and some new laptops ( vaio for example) have 10,5 volts and an adapter is needed. I owned many backpacks and it's one of the best ones i've ever had :-)
19057
I believe the charger is made to operate on 110-120 V input. If the input voltage is higher the output will be higher and damage the unit.