Introduction: Usual Batteries Charges CellPhone

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!

Comments

EtCetera112 (author)2013-05-16

i Like, "you're" Grammer!!!!

jeasterl (author)2012-12-14

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
careful some regulators drop excess voltage as heat wasting valuable watts

tfrost1980 (author)2012-05-24

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.

anallie0 (author)2012-01-29

I made ​​a guide inspired by the circuitry found on the web and I optimized.
http://thepowerofwindroid.forumcommunity.net/?t=46577269

NightFire (author)2008-12-29

Anyone else notice that the Duracell box had the Energizer Bunny on it?

Cartuner55 (author)NightFire2009-04-17

i did. WTF

fwjs28 (author)Cartuner552009-05-11

agreed

fgraham (author)fwjs282011-11-14

Only in America does Energizer have the bunny as a trademark. Elsewhere, duracell also has bunnies.

Hammerhead46 (author)2010-09-19

What is the polarity on phones using a Micro mini USB connection like the Motorola phones and the LG phones?

rexubaub (author)2010-04-29

where do you connect the resistor in the positive flow or the negative?

.Unknown. (author)rexubaub2010-07-23

Doesn't really matter here.

Steven Tapping (author)2010-04-14

bit of a noob question: do i need a regulator/resistor at all?
can't i just use a 6v battery combo to charge a 5.2v device?
or will that be a very bad idea?
suggestiond please.

samuraiclinton (author)2010-02-02

I would just do the same, except with a 6-volt spring-terminal lantern battery

Ockin (author)2009-12-30

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.

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.

BOOM5601 (author)2009-09-05

I think you should just make it 6 batteries and hook it up to a 5v reg.

ivaneduardo747 (author)BOOM56012009-12-12

Thats much better than putting a 2 ohm resistor, specially because if the cellphone does not use much current.

BOOM5601 (author)ivaneduardo7472009-12-12

The reg is supposed to use 5 ma anyway.

omkar_hummer (author)2008-05-10

for how much times will it work??

555mst555 (author)omkar_hummer2009-08-19

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

fwjs28 (author)omkar_hummer2009-05-11

untill the batteries die.. :)

fishing4life13 (author)2008-04-24

does this work for every cell phone?

it depends on the plug you use . it should

blue200316 (author)2008-07-15

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.

computer_gui (author)blue2003162008-08-02

the center of the plug is genraly positive some of the older ones are colour coded so red is (+) black is (-)

blue200316 (author)computer_gui2008-08-02

thanx for the info.now i will make this charger. :)

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