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Make a mobile charger?

BgG286
By BgG286
in Phones and Tablets
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Do you guys think it'd be possible to make a mobile charger from scratch? My phone has terrible battery life, and I am not willing to buy the extended battery for it unless I absolutely HAVE to. I have a few old phones with the batteries still in them, and I have a spare male USB cable segment. Would the batteries have to be the same voltages? Is this even possible? Do I risk harming myself in some way? I have spare time and really like doing contraptions like this that actually serve a purpose. Would really like some feedback on this.

System specs:  CPU: AMD Phenom II x3 705e unlocked to x4 overclocked to 2.8GHz   |   MB: ASUS M5A78L-M LX PLUS   |   Cooler: Hyper 212+   |   GPU: MSI GTX 560ti OC to 910Mhz   |   RAM: 8GB PNY DDR3 1333   |   HDDS: WD Caviar Blue 320GB, Hitachi 500GB HDD   |   PSU: Cooler Master Extreme Power Plus 500W   |   Peripherals: Microsoft wireless mouse, old mac keyboard, ASUS VS238H, Gateway FPD2275W, some speakers, Logitech Driving Force Pro

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i would think it has to be the same voltage and amps so it can charge properly but there may be a worksround

i5 3570 | MSI GD-65 Gaming | OCZ Vertex 60gb ssd | WD Green 1TB HDD | NZXT Phantom | TP-Link Wifi card | H100 | 5850


“I snort instant coffee because it’s easier on my nose than cocaine"


 

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i would think it has to be the same voltage and amps so it can charge properly but there may be a workaround

 

A Voltage Regulator is the work around, the amps will depend on the impedance of the device connected.

I'm just a soul who is up to no good.

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A Voltage Regulator is the work around, the amps will depend on the impedance of the device connected.

ya i dont know a whole bunch about electricity but i knew you need atleast something to keep voltages the same

i5 3570 | MSI GD-65 Gaming | OCZ Vertex 60gb ssd | WD Green 1TB HDD | NZXT Phantom | TP-Link Wifi card | H100 | 5850


“I snort instant coffee because it’s easier on my nose than cocaine"


 

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The idea would be to have 5v going to a female usb port then i guess. Is there any way i couldput battery from an old phone so it could be recharged? I want to be able to charge the cbrger, and then take it to school. Can anyone link the regulator i would need in order to do this? I dont even know what i should look for.

System specs:  CPU: AMD Phenom II x3 705e unlocked to x4 overclocked to 2.8GHz   |   MB: ASUS M5A78L-M LX PLUS   |   Cooler: Hyper 212+   |   GPU: MSI GTX 560ti OC to 910Mhz   |   RAM: 8GB PNY DDR3 1333   |   HDDS: WD Caviar Blue 320GB, Hitachi 500GB HDD   |   PSU: Cooler Master Extreme Power Plus 500W   |   Peripherals: Microsoft wireless mouse, old mac keyboard, ASUS VS238H, Gateway FPD2275W, some speakers, Logitech Driving Force Pro

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