Usual batteries can charge cell phone? How to make Cellphone charger for anyone 'on-the-go'! You will need only charger plug, resistor 2 Om, and four batteries AA size. Simple , easy to make and very useful!
i Like, "you're" Grammer!!!!
would be better to use a forward biased silicon diode (voltage drop =~.7 volts) leaving 5,3 volts nominally in the usb specs for any battery of a higher voltage i.e. nine volt a regulator is needed <br>careful some regulators drop excess voltage as heat wasting valuable watts
NO, not only in America both companies are American therefore would not break copyright laws, the energizer bunny is a trademark, the problem lies with lowlife foreign companies who steal american intellectual properties. counterfeit batteries are a well known problem in lesser countries.
I made ​​a guide inspired by the circuitry found on the web and I optimized.<br>http://thepowerofwindroid.forumcommunity.net/?t=46577269
Anyone else notice that the Duracell box had the Energizer Bunny on it?
i did. WTF
Only in America does Energizer have the bunny as a trademark. Elsewhere, duracell also has bunnies.
What is the polarity on phones using a Micro mini USB connection like the Motorola phones and the LG phones?
where do you connect the resistor in the positive flow or the negative?<br />
Doesn't really matter here.
bit of a noob question: do i need a regulator/resistor at all?<br /> can't i just use a 6v battery combo to charge a 5.2v device?<br /> or will that be a very bad idea?<br /> suggestiond please.<br />
I would just do the same, except with a 6-volt spring-terminal lantern battery<br />
I have to say that it is clever but not very useful. If in order to create this charger you require a cable that plugs into the phone it is most likely that that original cable could be used to charge it either through a computers usb or the mains anyway. I guess it is useful to take with you on a trip.<br /> <br /> If there was a way to charge a phone BATTERY so you don't need a cable to plug into it then it would be more useful.<br />
I think you should just make it 6 batteries and hook it up to a 5v reg.
Thats much better than putting a 2 ohm resistor, specially because if the cellphone does not use much current.<br />
The reg is supposed to use 5 ma anyway.<br />
for how much times will it work??
this one is not very good....coz once ur batteries go to below 5v u cant charge anymore....u should use a 9V and hook it up to a 5V regulator...i made one...it worked well on my psp
untill the batteries die.. :)
does this work for every cell phone?
it depends on the plug you use . it should
how will i check the phone's polarity, how will i find out which wire is positive and which is negative of the charger plug? i have many old nokia chargers and use a nokia phone. please tell me, i really liked this and i want to make it my self.
the center of the plug is genraly positive some of the older ones are colour coded so red is (+) black is (-)
thanx for the info.now i will make this charger. :)

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