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Thread: USB car charger reviews

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    Lightbulb USB car charger reviews

    Hello,

    Does anyone review* these USB car chargers for cell phones?

    *I mean a complete test with load test, ripple test, efficiency, component analysis etc.

    Thank you.

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    I haven't seen any. Though one could use the same equipment to review them.

    I guess the number of people that actually give a crap is minimal.

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    I would guess that when you can get them at the dollar store or at flea markets for $1 each, people view them as disposable.

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    A dozen USB chargers in the lab: Apple is very good, but not quite the best

    http://www.righto.com/2012/10/a-doze...-apple-is.html

  5. The Following 3 Users Say Thank You to mariush For This Useful Post:

    Andlcs (09-09-2014), ehume (09-01-2014), Philipus II (09-03-2014)

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    Quote Originally Posted by mariush View Post
    A dozen USB chargers in the lab: Apple is very good, but not quite the best

    http://www.righto.com/2012/10/a-doze...-apple-is.html
    "When you buy a USB charger, how do you know if you're getting a safe, high-quality charger for your money? You can't tell from the outside if a charger provides silky-smooth power or if it is a dangerous charger that emits noisy power that cause touchscreen malfunctions[1] and could self-destruct."

    It's a nice idea. Especially when an Apple can cost real bucks.
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    That review was motivated by the accidents that crappy chargers killed people when they were using the electronics being charged. It can be serious.

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    When I worked for Razer, I was product manager for the adapters used on mobile devices. I'll tell you what... there's A LOT more that goes into making sure an adapter works properly and is safe compared to desktop PSUs. So fake adapters can be VERY dangerous.

    I mean.. you have a higher power density, so the odds that the PSU can actually put out what it's supposed to put out isn't too good if it's some cheapo rip off. Then, you have the complete lack of active cooling. You have heat shields that can spread the heat around the entire housing, but you have to make sure that shield doesn't short anything out or cause a short between the AC and DC sides if a component is to fail. And then, you have to worry about the surface temperature of the housing getting too hot. There's actually a standard for that in the US that the housing can only get so hot to be considered safe to sell.

    I liked working on mobile power because of the "challenges" it presented, but I can't say I miss it.

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    I wanted to get something with a little bit more quality than these crap cheap chargers out there. I was looking for a good car USB charger DC-DC 12V to 5V but now I need a good wall charger also. Any recommendations?

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    Quote Originally Posted by Andlcs View Post
    I wanted to get something with a little bit more quality than these crap cheap chargers out there. I was looking for a good car USB charger DC-DC 12V to 5V but now I need a good wall charger also. Any recommendations?
    Cut up a Molex->SATA adapter and attach a USB cable to it!

    Code:
         Molex                                                               USB
    
    |---------------|                                                  |---------------|
    |5V (red)       |--------------------------------------------------| 5V (red)      |
    |GND (black)    |------------|                              |------| D+ (white)    |
    |GND (black)    |            |                              |------| D- (green)    |
    |12V (yellow)   |            |-------------------------------------| GND (black)   |
    |---------------|                                                  |---------------|

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