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I ended working with knockoff chargers when I browse your tear downs, considering that I don't need this to occur to me:

Considering the fact that HTC is carrying out very well with their telephones nowadays, why not assessment it. A teardown might be pleasant way too. Oh, and also the Apple MagSafe chargers as well!

Meanwhile I am investigating having hold of a Touchpad charger to exchange a Chinese generic that I purchased prior to from a nicely-identified World-wide-web auction website. Would be interested to send out it to you for testing, but It appears you happen to be on the opposite aspect of your pond for that for being uncomplicated. Regards in the UK, Rob

Considerably to my surprise, the HP TouchPad charger (which isn't really bought anymore) turned out to possess the most effective General rating. The counterfeit apple iphone charger set a brand new lower for bad good quality, strikingly worse than the opposite two counterfeits.

I see lots of ebay listings for the hp touchpad charger that ship from china for around $six. All of them say genuine, and possess photographs if what seems to get the real charger, but I am skeptical that they are fakes. Anybody get one?

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Subjectively, I appreciated 1st a person far better, Although it really is much less potent. Any opportunity that to see the graphs on these or similar goods?

Did you receive a chance to tear down the Orange UK charger and Look at if there were any concrete protection challenges, particularly in the case that too much ability is drawn for many purpose?

Hey Ken - this was Tremendous enlightening and I desired to thanks for it. A charger is just some usual, every single day bit of technologies that individuals shell out minor to no focus to in the slightest degree but as you've found out, they're not designed equal and differ wildly regarding overall performance.

Hi! Wonderful write-up! It truly is obvious the hassle you set into this, both within the testing and during the writing. I've used this publish various situations myself and referred it to Other people at the same time.

I lately bought a USB wall plate that may be labelled back and front as 2Amp but the typical output was 0.35Amp. The highest output I saw was 0.41Amp. Each time a Samsung Galaxy S2 pill is plugged in it claims "Charging slowly and gradually..." .

Internally a charger is surely an amazingly compact switching electric power offer that efficiently converts line AC into 5 volt DC output. The enter AC is initial transformed to superior-voltage DC. The DC is chopped up tens of Many occasions a next and fed into a tiny flyback transformer. The output with the transformer is converted to reduced-voltage DC, filtered, and delivered given that the 5 volt output with the USB port.

Then Ohm's law gives the current. I utilized a dummy load as opposed to a real cellular phone for these measurements since telephones Have got a consistently modifying load, which messes up the measurements. And I didn't need to destroy my cellular phone if a little something went wrong.

The HP charger is exactly the same given that the the charger that arrived Using the Palm Pre in websites advance of HP acquired Palm. Under no circumstances knew the prongs twisted off right up until I browse your post

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