Voltage variations damage?

Have just received by post a 'Fone Storm' car charger for a Huawei Ascend g300 phone. I wanted to check the specs to see if I had been sent the right one for this phone.

On the box it says input DC 12v-24v. Output DC 4.2v - 10v. 500ma, max

750ma.

I always understood that tiny components could be damaged by even fairly minor variations in voltage, so am surprised that the output can be stated as 4.2v - 10v. It was very cheap only £2. Would I be safer to spend more and get the official Huawei charger?

Reply to
jim stone
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Hi Jim, I don't know about the particular phone. But it's certainly possible that the phone can handle a range of DC input voltages for charging. Is there some specification for this in the phone manual? That might give you some peace of mind.

George H.

Reply to
George Herold

some of these devices have a voltage that is configured by the customer, eg: by selecting the right tip for the cable, (or by selecting the right cable) or turning a selector screw...

I would want to see a similar voltage figure to that which is given for the mains powered charger.

--
?? 100% natural
Reply to
Jasen Betts

The Ascend uses a micro USB so it should be nominally 5V - possibly as high as 5.2V - but 10V would almost certainly do damage.

Get yourself a USB to micro USB cable and a car charger that has a USB outlet (or two.) Certain to work. You can also get a USB mains plug as well to charge at home.

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Woody 

harrogate three at ntlworld dot com
Reply to
Woody

Usually...

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Theo

Reply to
Theo Markettos

I've seend this dubious output rating of 4 to 10 or 4 to 9 volts on generic garbage micro usb chargers off ebay.

they don't work right with many phones, in case you were curious.

Reply to
Cydrome Leader

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