This is because the voltage difference is within specs, and I am GUESSING you could go even higher or lower in voltage. Copyright 2007-2021 groovyPost LLC | All Rights Reserved. Just wish I had always done this (guilty of still having a box of adapters that are unmarked). They are often labeled as such: (50W 1.5 ohm J).. Hmm My advice Hitarth, since this is medial and therefore sounds expensive, I would call the company who built the device and get them to answer the question. It ended up being a pretty big box. The AC/DC part should be fine as most laptop charges handle both (it will indicate it on the power supply). This connects via a short 1-metre cable to the router by a typical 2.1 mm centre positive male connector. Can it work? Thanks Cherie for the feedback! However, polarity is also an important factor. With a little skill, you could swap the wires around. In this analogy, the voltage would be the water pressure. Is it possible to use a 240v power supply as long as its putting out 9v? most likely nothing would have happenedunless the polarity was wrong. My Yamaha portable keyboard and its power cord were separated during the cleanup. My PS3 power cable fits in to the PS2 fuse box, but has a negative polarity, whereas the PS2 fuse box (AC Adaptor) has a positive polarity. The only standards that electronics (usually) conform to are in regards to the wire gauge and respective maximum current. Thanks in advance ;). And consudering this, my replacement adapter wouldnt harm my Sega Genesis model 2? It is a computer charger. I plugged in my daughters charger to my old sweeper by accident and fried the circuits in my old sweeper, so I bought one from Ebay, only to find the stupid woman had put in a charger that doesnt belong to the carpet sweeper. what it says on the rear. I believe Sean did respond to her question. For future purchases I might try and get multiple adapters when the appliance purchase is first made. on the right u see the same info for the compatible charger exc .. for the product u r trying to either power p or turn on .. and not in a list for like computer dvd layer hone exc but in the INPUT OUTPUT \compatabiity for. That would be enough to educate any lay person worried or simply frustrated to know if they are making a mistake, But with insufficient amps, your device may not work at all, or it it does, it will be hard on the power supply, which may overheat and/or fail like the bicyclist trying to tow a boat. The other day I accidentally threw away my husbands beard trimmer charger. Elaine just needs to be sure that the Voltage and polarity on her universal adapter matches that of her device and she will be fine. The 5W of the output 1 is less and the phone will take some time to full up the battery. Thank you so much for this article Mr. Busch. Loved it! Output: 12 Vdc, 8 Amp. Before trying to find a matching AC adapter for a device, check if the OEM (original equipment manufacturer) adapter is available. Many times struggling to read whats printed on those plugs. I found it very illuminating. Your article starts out describing my dilemma almost to a T, then never does really answer the question, how do I know which adapter will work with which device. Great article. Get reliable power for compatible devices with the Microsoft Surface Power Supply. Adapter plug looks like a stereo headphone jack and I dont know which part is negative/positive. But if I put an adapter with 24VDC output into a device that requires 5VDC, I can kiss the device and my $120 goodbye. I can match color and design. Theres a good chance it wont turn on, and even if it does turn on, it will probably shut off soon. The fuse will die in such case and you cant turn on your device until tou replace the fuse. So my guess is that if I simply plug the US 5v/2a ac adapter into a basic plug converter that does not have step down voltage ability then the device and/or the ac adapter will be fried because there is no conversion from UK 230V/50HZ to US 120V/60HZ? I have my old charger which is for the same brand sweeper, just a different model. Is it possible for the amperage to have dropped while still maintaining the voltage? My finds reveal only 5V USB power supplies. I have A DynaDoc power station that takes 15 V but I have a charger that is a 1944. You might find both the voltage and the current elsewhere on the device, on the bottom or inside a battery compartment cover, or in the manual. If you look up the part number on amazon, theres a good chance there will be a mention on what it is used for. Input: 100-240 Vac, 50/60 Hz, 0.3 A. Yup! I have a Brother P-Touch PT-2300 label maker. Hard to read black sharpe on black adapters ;). 3.42A. If your laptop adapter is 19V 2.37 amps (=45watts) and the replacement adapter is 19V 2.1 amps (= 40 watts) is it still safe to use the replacement adapter? The charger was hot when I disconnected it. A center-positive adapter polarity has a line extending from a positive circle to the open-end circle. Conversely, an adapter may be rated at 5A, but can withstand currents up to 8A. Needless to say, I soon found that the unit would not charge. Ideal replacement or backup power source for your HONR# ADS-5N-06 05005G. An AC adapter is an external power supply that converts alternating current (AC) from a wall outlet to a direct current (DC) needed by an electronic device. Heres a link to someone asking the same question : https://electronics.stackexchange.com/questions/42374/ways-to-determine-polarity-dc-without-a-meter. Im wondering now how battery voltage would tie in: We have a white noise device that takes either 4 alkaline batteries in serial, which I know would be 6 volts, or can be plugged into the wall with a 5.5 volt AC adapter. This was hands down the most informative, easy to understand article on the subject I have found. Note: DC wall transformers Phihong PSC12R-090. I have a photo of the adapter if needed. I completely understand the output amps. Dennis. -DC Output: 19.5V 11.8A 230W Cheers from Australia, Short and brief but very useful, I always had problem in understanding these concepts. Customizable to power your device using adapter plugs. if it is voltage problem will a converter fix it? 6' long cable with 2.5mm coax plug, center Labtec AD-6 Input: 120 Vac, 60 Hz, 14W Selectable Output: 3, 4.5, 6, 7.5, 9 Vdc Current: 650mA DVR# DSA-0421S-501. The display flickers while the adapter is plugged in but on battery power with the adapter unplugged, the flickering stops. You should be fine with 5A fuse. When looking at the wires on the output side (dc) there are a pair of wires leading to the end plug, on some, one of the two (pair) has a solid white line on other models a dashed white line, what is the difference, my guess is that whether solid or dashed white line signifies + the positive lead? Im a little confused on a different term of VA. V = sqrt(P*R) why woouldnt that work? If the current is too low, the electronic device may stay on, but its battery will not charge. Will this work plugged into a 12v outlet? I dont know that she will ever come back to read this, but for the benefit of future readers, I thought Id respond to Elaines comment, above, where she says, You dont mention watts in the mix. In fact, the author did, but only briefly. Will a 0.5V higher damage my laptop? (Excellent article, btw I tip my hat to you, Mr. Busch. Yes, thank you. thank you. I turned it in to a note on my phone to remember forever. First USBs dont come through in 12VDC. This was the best simple summary of the article I could have imagined. I have a record player that I bought in the US. But what if you accidentally (or purposefully) use the wrong adapter? Any suggestions for a simple workable solution or any issues to avoid ? I ended up getting an used replacement from an independent computer repair shop for $20. The DC voltage is the output voltage of the adapter, and it is usually much lower than the input AC voltage. It may surprise you that you can use adapters with higher current ratings than your devices. 6' cord with 3.5mm mini-phone plug, tip negative. You havent indicated how many volts the adaptor is and in this case guessing it was 5V 1 amp. Hello, i would like to ask what will happen to my laptop if i replace my original 19V and 3.74A adapter with a 19.5V and 3.6A adapter? But 20 makes for simpler math.) There are two types of connector polarities: center positive and center negative. Some of the plugs will get really hot so, when i notice it i quickly turn the plug but, after long term that will wear out the power supply with the chance of shorting out the device, but I have no support of this there is nothing that i can find on this. So, you dont have any problem to connect your phone to your computer or powerbank. cULus. Condor# S6-121AOV Model: FJ-SW7261201000DU Input: 100-240V, 50/60 Hz, 0.4A max. Dont use it. Hope this helps and that I didnt confuse the matter. Thanks in advance. Thank you very much. It is great and now I will bring it with me to Europe. I believe this is what happened to me. Well I have been doing some searching for batteries for my Asus A551XM Laptop. These type of appliences never have removable powercords so thought is required prior. Its a craig 3piece shelf clock radio stereo. The specs of the AC-DC adapter are as follows: Input: 110/220V AC Tweaking any of these three variables increases or decreases the amount of electrical power sent to your device. Multipurpose AC to DC adapters have many different capabilities. iise.org home website Input: 120Vac 60Hz. Is there a way to tell amperage from the batteries required? Thanks! The rating on the power cord is just a max voltage rating because in other countries they may have power rated at 250V. The polarity is -c-+. Heres the question: IF my brother in law has the 12v 3a can i use it? I want to use a transformer to connect my 24 volt drill to 240 volt mains. I am using a variable voltage device that requires 12 to 13 volts the dice allows me to reduce the power to 0 volts it is kinda like a variable voltage desktop lab but it requires an adapter to work. That being said, I dont recommend fudging the margin under the assumption that you can do the equivalent of driving 5 MPH over the speed limit with your electronic devices. If there is an issue with the internal power supply or transformer that affects the ground or neutral regulation, that also may need replacement. Is there such a thing as a (relatively) high current variable voltage adapter which is capable of furnishing (relatively) high current levels, with voltages that can be incrementally increased from very low to levels that seem to make a device operate properly? Trying to figure out what 15 VDC and 100 mega amps means. A fantastic article, which was very clear and easy to understand. Matt, though. https://www.sweetwater.com/insync/power-conditioner-voltage-regulator-ups-differences-explained/. But such a device might help a user determine what the actual input voltage a device needs without trying random power adapters and taking a chance on frying the device which it is intended to power up. 3.25A. Output 12V dc 1.8a. Reversing the plug wont reverse the output. 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If so can i get a plug that can be 12 volts DC 5 amp im thinking if im at 100ma which is smaller then max 5 amp i should be ok, I cant see how to set up a new comment. I could then repeat this on my spare power supply to see if it is the same. 11.5 vs 12 is .5 v difference. This happens if the adapters VDC is lower than the devices input voltage even when their current ratings are the same. I purchased two used RCA 25425RE1-C business phones, but one didnt come with an adapter. Sidenote: I will stand corrected as I am not an electrician but I wouldnt use it. Is .5v enough to really be concerned if I chose to use the 4.5v setting? What happens? The following will cause damage to your device: Higher voltage adapter than device rating. Output: 14 Vdc, 300 mA. It does not however generate the power so just because you have a 19v 4.74a 90w adaptor, it can never generate the 29 volts. Recently brought and old keyboard, it came with a USA 2 pin Ac Dc Plug. As part of that process, I took all my power supplies and adapters and threw them into a box. No! Even when both the adapter and the device have the same voltage rating, the device will attempt to draw more current than the AC adapter can manage.

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