What you will need:-
-Philips PH00 screwdriver
-Electrical tape
-Soldering iron & solder
-Decent wire (not too big, not too small) I haven't specified a gauge.
-A spare (genuine) PSP battery (or equivalent in size & voltage) 3.6 or 3.7.
-Pliers
-PS Vita wifi console
First up, don't use anything with or without a voltage below/above 3.6 or 3.7. I recommend a Li-ion battery; as they are more reliable and less likely to explode upon an unfortunate discovery.
(Using anything above 3.7 will result in the primary PSV battery discharging a small portion of its electrons into the secondary battery, in the transfer it will be wasted).
I had been very unlucky upon the short discovery of my 3600mah PSP batteries from eBay that had turned out to be fakes. They lasted about as long as the genuine Sony PSP battery's, but didn't give a low-charge warning due to the false readings on the PCB IC on the battery circuit. 7.53 hours; fooled. Do not purchase them, it was a waste of £10.
Onto the mod.
First up of course, open your PS Vita with the PH00 screwdriver http://www.ifixit.com/Teardown/PlayStat ... rdown/7872
Once you've got it open and with the battery taken out, go ahead and strip a short line of the black and red wires. (make sure they don't touch together)
You don't need to touch the white wire at all.
Now open your PSP battery (if you want to use one)
A sharp knife will do just fine, even a kitchen knife. (be careful not to pierce the battery)
As you can see, my battery has already been taken out, and in the picture was left only with the battery PCB.
What you need to do is desolder the PSP battery's positive and negative wires; leaving the bare battery left.
From here on, solder some short length wire onto the PSP battery's + and - pads.
Then twist the PSP battery's + and - onto the PS Vita's + and - silver stripped patches on the vita battery.
I put a small lining of electrical tape over it, but don't put too much on it. You want it to fit in the vita's touch pad case.
Now onto the vita's back case.
You'll need to grab your pliers and carefully twist and snap a majority of the plastic grooves off of the case. (don't worry, that's where the 3G module is supposed to be, it won't harm the case or touchpad)
Once everything is set, once you've soldered soldered everything, put a generous amount of electrical tape over each contact you worked on, this is very important.
When you're comfortable with what appears to be a secure placeholder position for your battery, place it in; though keep in mind - you may have to use force.
I'll use decookaaron's picture as it's clearer-
Once it's inserted into a spaceholder on the vita and you're sure everything is secure & safe to go, you can then go and put everything back together (carefully) and make sure it all works as intended.
I've provided an image of the left and right trigger holder plastic parts, as I got confused and sat there for 5 minutes trying to work out which one went into which slot, so if you get confused the same as me, here is a clear set of pictures where the trigger place-holders are supposed to be:
(LEFT)
(RIGHT)
Here is another mod I placed into my vita last night in the same way I fitted the PSP battery
from the female composite port was a red and black wire. I just soldered them to the parallel ports on the PS vita's + and - too.
With this port, I can hook up an 'external' battery pack which can be used as an "emergency" battery. I've tested it, and it can either charge the vita's batteries very slowly while off, or you can instantly connect it and power the vita with it.
The battery I used was x2 18650 batteries connected together parallel equaling: 3.7v and 5600mah (so it claims on the website I bought them off)
I taped the two batteries together and connected a male composite connector for the female one which is connected to the vita's batteries.
Yet another mod I have here is one of the simplest yet.
This tiny little modification allows you to charge your PS Vita in any universal USB port; including portable power banks. - 500ma, 1000ma, 1500ma, 2000ma. Of course, charging your PSV at a 500ma USB port will take hours and hours to charge, providing you aren't using it at the same time as you charge it.
First up:- PISEN USB for PS Vita
An already made industry-line product that is done for you, and cheap. Problem is: shipping time. (commonly Hong Kong).
Second, a homemade modification. With a USB extender-
What you need to do is bridge the middle pins together. On a USB there are 4 pins, dab a bit of solder between the two - (white and green) or just short the white and green wires together.
Then solder the black and red -/+ back to the male USB connector and you're done. Test it out.
Here is another picture:
On a USB, black and red serve as power, the white and green serve as data - data for smart devices, they incorporate into the host (computer) whereas a dumb device generally only requires power.
The PS Vita genuine Sony charger has D+ and D- shorted beforehand. When connecting the PSV USB cable to a computer, it acts as a smart device and talks to the pins D+ and D-
Shorting D+ and D- acts as a different signal to the hosts, it changes the device from smart, to dumb. (power only)
thus, letting you charge the PS Vita from ANY usb device with a minimum output of 500ma, and maximum 2.1ma.
There we go, I hope this will be of use to anyone, and I apologize for my noobish skill in organizing this thread.
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