Cellet Bullet Retractable USB Car Charger for Samsung Galaxy S, Galaxy S2, Galaxy S3, Motorola Droi

I had bought this to charge my DroidX since I had no official car-charger, and I had bought it with the knowledge that it is, in fact, a $6 charger-and-cable set. I actually bought two with the purpose of both having one to test, and having one to crack open and reveal its secrets.

For those who are techy, it uses an MC34063A linear voltage regulator, which means it is subject to heat up. The chip itself is rated for a switched current max of 1.5A, however this is only a peak current rating and should never be sustained. Of course, the standard Motorola AC charging adapter puts out a decent 800mA of power, and bullet charger is rated to 750mA; this is overall an acceptable value.

DATASHEET---> .

For those who AREN'T techy, its like a "regulated resistor" (so to speak), where it drops the voltage that comes in (+12v) to the necessary output (+5v) by converting the extra energy to heat. This means that more than half of the power coming into the chip is just being burned up...literally...and the higher the input voltage, the hotter it will get.

As far as overheating, after 10 minutes of charging my nearly-charged DroidX, it not only became almost too hot to remove from the socket without gloves, but also heated up the cable to a concerning degree, as well as bringing my phone's battery temperature above normal charging temp. While not entirely destructive, it does mean the charger is prone to early failure, as well as potentially damaging the cable attached.

In summary, it is a very inefficient design prone to quick failure, has a mild potential to damage equipment, and it subject to extreme overheating, however this does form a good base to build off of, using its board and case as a starting point to replace with a true switched regulator with a heatsink.

If you're looking for something to work out-of-box, this is not the purchase for you, unless you're looking for a $6 micro-USB cable. If you're looking for something to tinker with to make absolutely perfect without having to pay ridiculous prices to achieve, than this is definitely worth the purchase.

I received my package in the mail, and it didn't look at all like the picture on Amazon. It appeared to be a cheap knockoff. It didn't have the Cellet brand name on it, nor the metal ring around the base. It was all plastic and the tip that plugs into the lighter was loos and needed to be screwed back on. I was too afraid to plug my phone into it, so I'm in the process of sending it back.

Buy Cellet Bullet Retractable USB Car Charger for Samsung Galaxy S, Galaxy S2, Galaxy S3, Motorola Droi Now

Came in two small plastic bag, very cheap plastic looking and doesn't even have the logo on the product. The Car Charger fell apart after a month, the retractable USB stopped working after 2 months and i barely even used it.

Read Best Reviews of Cellet Bullet Retractable USB Car Charger for Samsung Galaxy S, Galaxy S2, Galaxy S3, Motorola Droi Here

This is a great size charger for someone wanting to get rid of bulky cables. I leave the plug part in the lighter socket and put the retractable part in my armrest console. No dangling cables to get stepped on when not in use.

If you don't have the specific type of phone or device listed, the USB socket will work with most anything that charges off a USB port. You just need to bring your own USB cable.

Want Cellet Bullet Retractable USB Car Charger for Samsung Galaxy S, Galaxy S2, Galaxy S3, Motorola Droi Discount?

After complaining to the vendor b/c they sent me the completly wrong item. They re-sent me some off branded cheap alternative to the "bullet" usb charger.

Not please at all!

Save 51% Off