tag:blogger.com,1999:blog-4922503085503427986.post2359116899639122988..comments2024-03-18T17:46:29.521-07:00Comments on Desert Home: Cell Phone Charging and Power Usage.davehttp://www.blogger.com/profile/11608589214882334649noreply@blogger.comBlogger10125tag:blogger.com,1999:blog-4922503085503427986.post-31926774364190319582016-04-04T12:37:14.033-07:002016-04-04T12:37:14.033-07:00There's no reliable way to tell by just lookin...There's no reliable way to tell by just looking. There's two things you can do to get some assurance that you have a good charger. First is to weigh it. I mentioned the weight I found above and I'm sure it's because there's more stuff in the Samsung charger. The other way is to get one of those little devices that measures the current from a USB port. They cost a couple of bucks and will tell you if it's providing the current you need.<br /><br />However, the Samsung store online is good about providing real Samsung equipment, so I think you're OK.davehttps://www.blogger.com/profile/11608589214882334649noreply@blogger.comtag:blogger.com,1999:blog-4922503085503427986.post-45800279504177423952016-04-04T12:04:34.768-07:002016-04-04T12:04:34.768-07:00Hello, this Samsung USB charger is purchased in st...Hello, this <a href="http://rodi.sk/blog/samsung-eta-u90ewe-001.html" rel="nofollow">Samsung USB charger</a> is purchased in store, not on Ebay, it is original or fake ?<br /><br />ThanksR0b0http://rodi.sk/noreply@blogger.comtag:blogger.com,1999:blog-4922503085503427986.post-71699443699963512942014-07-14T03:17:53.863-07:002014-07-14T03:17:53.863-07:00that's greatthat's greatAnonymousnoreply@blogger.comtag:blogger.com,1999:blog-4922503085503427986.post-85508172011253238932014-07-09T12:56:49.906-07:002014-07-09T12:56:49.906-07:00I had not seen that. What I'm beginning to th...I had not seen that. What I'm beginning to think is that I should build myself a 10 amp at 5V power supply and put some usb ports on it for my devices. Just plug them in and let them charge up. Then, I can have a central place and only one supply to worry about. Sure, when I travel, I might have problems of some kind, but I won't have to be worrying about the supply I'm using. <br /><br />Let's see, there's a lot of laptop supplies out there, maybe ...davehttps://www.blogger.com/profile/11608589214882334649noreply@blogger.comtag:blogger.com,1999:blog-4922503085503427986.post-40564967728105869142014-07-09T10:20:38.032-07:002014-07-09T10:20:38.032-07:00Regarding fake power supplies... I don't know ...Regarding fake power supplies... I don't know if you've ever checked out this guy's website, he goes to insane depths checking out consumer power adapters.<br /><br /><a href="http://www.righto.com/2012/10/a-dozen-usb-chargers-in-lab-apple-is.html" rel="nofollow">Ken Shirriff's blog</a> BobWhttps://www.blogger.com/profile/15802848891518070851noreply@blogger.comtag:blogger.com,1999:blog-4922503085503427986.post-23934744206615145672014-06-29T02:49:40.943-07:002014-06-29T02:49:40.943-07:00I'd think 200W is pretty low in America. It&...I'd think 200W is pretty low in America. It's estimated that the uk average standby is around 300W, so that's £300/year ($450) It's often the low power things that build up and cost the money.jonesyhttps://www.blogger.com/profile/13367013419377929288noreply@blogger.comtag:blogger.com,1999:blog-4922503085503427986.post-41838097603997063382014-06-27T07:07:38.666-07:002014-06-27T07:07:38.666-07:00I'll never be able to get it as low as you do....I'll never be able to get it as low as you do. Here in AZ, I have to run ceiling fans 24/7 in a couple of rooms and those things use 45W each. So, I may be able to keep it around 200W or so, but something as low as 20W is out of reach.davehttps://www.blogger.com/profile/11608589214882334649noreply@blogger.comtag:blogger.com,1999:blog-4922503085503427986.post-28859786564510648552014-06-27T03:09:03.761-07:002014-06-27T03:09:03.761-07:00My comment on PF was to do with the measuring equi...My comment on PF was to do with the measuring equipment, rather than the actual figure; as domestic customers, we're billed in W, so a PF of 0.1 makes no difference to our bill, but it sure annoys the power company who have to deal with the reactive power in the network (which costs them err us money) The waveform distortion caused by the switching PSU causes us all a bit of grief too.<br />While you're checking the garage door openers, look at the electric gates, burglar alarm, etc. I'm a little shocked at how bad some transformers are made now; my gates had a 200W toroid that took about 15W - I replaced it initially with an old one I had lying around which took 4W, then used a small wall wart just to power the electronics (<1W) which switches in the main one as required.<br />Typically, if I have a 20W 24/7 load, it costs me around £20 ($30) per year, but I don't have your exotic tariffs (yet) By going around the house, I managed to get our base load from around £100/year to around £11.<br />But as you say, you have to be pragmatic. jonesyhttps://www.blogger.com/profile/13367013419377929288noreply@blogger.comtag:blogger.com,1999:blog-4922503085503427986.post-4195439677636345802014-06-26T06:58:57.815-07:002014-06-26T06:58:57.815-07:00With the fake wall warts, the standards don't ...With the fake wall warts, the standards don't apply. They just slap a sticker on it and it looks like it was certified. Every charger I've tried so far has a power factor in the high 90% range. We're totally on our own with these devices.<br /><br />As I've said in a number of posts, I'm not an environmentalist, I'm a pragmatist. Around my house, I chase down the big wasters and see if there is something I can do about it. I don't use a lot less power, but I pay a whole lot less for it than my neighbors. Thus, an 11 watt wall wart would go right out with the trash, or be scavenged for useful parts.<br /><br />I gotta go check the power usage on my garage door opener now.davehttps://www.blogger.com/profile/11608589214882334649noreply@blogger.comtag:blogger.com,1999:blog-4922503085503427986.post-48571589320828346322014-06-26T03:01:56.258-07:002014-06-26T03:01:56.258-07:00This is a subject close to my heart - both fake wa...This is a subject close to my heart - both fake wall warts, and parasitic power.<br />1. fake stuff. If I've just bought a new phone for several hundred $, I'm not going to trust a $5 fake supply to charge it. I've had a genuine charger go wrong and toast my phone, which was easy to prove. Luckily.<br />2. Parasitic power. There are (international?) standards for wall warts. In the latest standard a small <20W one must use <0.5W when plugged in. However, this doesn't apply to things like dish washers and washing machines etc. Old branded phone chargers are great for home made projects around the house, but watch out as the older transformer ones have a high power wastage - I have one that consumes 5W to supply 1W. I recently replaced the transformer in my garage door opener which took 11W with a switch mode one that takes 1W.<br />Always make sure the power monitor you're using looks at the power factor or you'll get mis-leading readings.<br />It is estimated that the amount of power wasted by wall warts and the like in the UK is just slightly more than the new nuclear power station to be built at Hinkley point. Makes you think.jonesyhttps://www.blogger.com/profile/13367013419377929288noreply@blogger.com