{"id":84,"date":"2018-12-21T06:35:22","date_gmt":"2018-12-21T06:35:22","guid":{"rendered":"https:\/\/oriccabattery.wordpress.com\/?p=84"},"modified":"2018-12-21T06:35:22","modified_gmt":"2018-12-21T06:35:22","slug":"what-happens-if-you-use-the-wrong-adapter","status":"publish","type":"post","link":"https:\/\/www.oriccabattery.co.uk\/Blog\/archives\/84","title":{"rendered":"What Happens if You Use the Wrong Adapter?"},"content":{"rendered":"\n<p class=\"wp-block-paragraph\">\nIdeally, you\u2019ll have the same voltage, current, and polarity on your adapter and device.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\n  But what if you accidentally (or purposefully) use the wrong adapter? \nIn some cases, the plug won\u2019t fit. But there are many instances where an\n incompatible power adapter will plug into your device. Here\u2019s what you \ncan expect in each scenario:<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\n  Wrong polarity \u2013 If you reverse the polarity, a few things can happen.\n If you\u2019re lucky, nothing will happen, and no damage will occur. If you \nare unlucky, your device will be damaged. There\u2019s a middle ground, too. \nSome laptops and other devices include polarity protection, which is \nessentially a fuse that burns out if you use the wrong polarity. If this\n happens, you might hear a pop and see smoke. But the device may still \nwork on battery power. However, your DC input will be toast. To fix \nthis, either replace the polarity protection fuse or get it serviced. \nThe good news is that the main circuitry wasn\u2019t fried.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\n  Voltage too low \u2013 If the voltage on an adapter is lower than the \ndevice, but the current is the same, then the device may work, albeit \nerratically. If we think back to our analogy of voltage being water \npressure, then it would mean that the  device has \u201clow blood pressure.\u201d \n The effect of low voltage depends on the complexity of the device. A \nspeaker, for example, may be okay, but it just won\u2019t get as loud. More \nsophisticated devices will falter, and may even shut themselves off when\n they detect an under-voltage condition. Usually, an under-voltage \ncondition won\u2019t cause damage or shorten the life of your device.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\n  Voltage too high \u2013 If the adapter has a higher voltage, but the \ncurrent is the same, then the device will likely shut itself off when it\n detects an overvoltage. If it doesn\u2019t, then it may run hotter than \nnormal, which can shorten the life of the device or cause immediate \ndamage.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\n  Current too high \u2013 If the adapter has the correct voltage, but the \ncurrent is greater than what the device input requires, then you \nshouldn\u2019t see any problems. For example, if you have a laptop that calls\n for a 19V \/ 5A DC input, but you use a 19V \/ 8A DC adapter, your laptop\n will still get the 19V voltage it requires, but it will only draw 5A of\n current. As far as current goes, the device calls the shots, and the \nadapter will have to do less work.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\n  Current too Low \u2013 If the adapter has the correct voltage, but the \nadapter\u2019s rated current is lower than what the device input, then a few \nthings might happen. The device could power on, and just draw more \ncurrent from the adapter than it\u2019s designed for. This could cause the \nadapter to overheat or fail. Or, the device may power on, but the \nadapter may not be able to keep up, causing the voltage to drop (see \nvoltage too low above). For laptops running on undercurrent adapters, \nyou might see the battery charge, but the laptop is not powering on, or \nit may run on power, but the battery won\u2019t charge. Bottom-line: it\u2019s a \nbad idea to use a lower current rating adapter since it could cause \nexcess heat.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\n  All of the above are what you would expect to see, based on a simple \nunderstanding of polarity, voltage and current. What these outlooks \ndon\u2019t take into account is the various protections and versatility of \nadapters and devices. Manufacturers may also build a bit of a cushion \ninto their ratings. For example, your laptop may be rated for an 8A \ndraw, but in reality, it only draws around 5A. Conversely, an adapter \nmay be rated at 5A, but in fact, can withstand currents up to 8A. Also, \nsome adapters and devices will have voltage and current switching or \ndetecting features that will adjust the output\/draw depending on what\u2019s \nneeded. And, as mentioned above, many devices will automatically shut \ndown before it causes damage.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\n  That being said, I don\u2019t recommend fudging the margin under the \nassumption that you can do the equivalent of driving 5 MPH over the \nspeed limit with your electronic devices. The margin is there for a \nreason, and the more complicated the device, the more potential for \nsomething to go wrong.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\nWall adapters that give you a USB port for charging aren\u2019t nearly as \ntricky. Standard USB devices have a voltage of 5 V dc and a current up \n.5 A or 500 mA for charging only. This is what allows them to play nice \nwith the USB ports on your computer. Most USB wall adapters will be 5 V \nadapters and have a current rating well over .5 A. The iPhone USB wall \nadapter I\u2019m holding in my hand right now is 5 V \/ 1 A. You also don\u2019t \nhave to worry about polarity with USB. A USB plug is a USB plug, and all\n you usually have to worry about is form factor (e.g. micro, mini or \nstandard). Furthermore, USB devices are smart enough to shut things down\n if something isn\u2019t right. Hence, the oft-encountered \u201cCharging is not \nsupported with this accessory\u201d message.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\n&gt;&gt;&gt;&gt;&gt;&gt;&gt;&gt;&gt;&gt;&gt;<a href=\"http:\/\/www.oriccabattery.co.uk\/adapter-laptop_Laa.htm\">Buy Laptop Adapter Online at Best Prices.<\/a><\/p>\n","protected":false},"excerpt":{"rendered":"<p>Ideally, you\u2019ll have the same voltage, current, and polarity on your adapter and device. But what if you accidentally (or purposefully) use the wrong adapter? In some cases, the plug won\u2019t fit. But there are many instances where an incompatible power adapter will plug into your device. Here\u2019s what you can expect in each scenario: &hellip; <a href=\"https:\/\/www.oriccabattery.co.uk\/Blog\/archives\/84\" class=\"more-link\">Continue reading<span class=\"screen-reader-text\"> &#8220;What Happens if You Use the Wrong Adapter?&#8221;<\/span><\/a><\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[59],"tags":[73],"class_list":["post-84","post","type-post","status-publish","format-standard","hentry","category-tips","tag-adapter"],"_links":{"self":[{"href":"https:\/\/www.oriccabattery.co.uk\/Blog\/wp-json\/wp\/v2\/posts\/84","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.oriccabattery.co.uk\/Blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.oriccabattery.co.uk\/Blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.oriccabattery.co.uk\/Blog\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.oriccabattery.co.uk\/Blog\/wp-json\/wp\/v2\/comments?post=84"}],"version-history":[{"count":0,"href":"https:\/\/www.oriccabattery.co.uk\/Blog\/wp-json\/wp\/v2\/posts\/84\/revisions"}],"wp:attachment":[{"href":"https:\/\/www.oriccabattery.co.uk\/Blog\/wp-json\/wp\/v2\/media?parent=84"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.oriccabattery.co.uk\/Blog\/wp-json\/wp\/v2\/categories?post=84"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.oriccabattery.co.uk\/Blog\/wp-json\/wp\/v2\/tags?post=84"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}