A Mouse+A Power Bank =Rechargeable Wireless Mouse

You can combine a wireless mouse and a cellphone power bank to make a rechargeable mouse!

Those are dead batteries I used for my wireless mouse last year. If I could build a rechargeable mouse I could save the environment and some of my money .

What I have is a used wireless mouse and a portable USB power bank ( tooth paste shaped, weird but small enough ).I used to try a cellphone battery but it is too big to fit in the mouse.

1. Iron

2. multimeter

3.scotch type and 502 cyanoacrylate adhesive (better to use hot melt adhesive if you have )

4.cutting-pliers is good to handle the plastic structures.

5. the cool stuff - a tiny multifunction screwdriver kit , I bought from a vendor for 3 USD.

The 5v output USB terminal (it should be removed ) and there is a micro USB terminal on the other side for input .

Remove the USB terminal and other unnecessary parts but be careful to keep the recharging protection circuit well ( when the battery voltage is higher than 4.2V, stop charging). Use the multimeter to figure out the right soldering pads.

This step should be very careful . Give enough space to your new battery and PCB but do not hurt the key structures of mouse or you have to throw everything in the garbage .

At the beginning, I tried to fit the 18650 lithium battery from the power bank to the mouse. After 2 hours fighting for room , I gave up. It takes no more 1mm^3 to contain the battery.

I ordered a red AA size lithium battery (3.7V output , 850 mAh) from taobao (I bet you could buy it from ebay). It is much slimmer the 18650(about 3 usd/pc).

The AA battery makes the mouse like a ship suddenly and the PCB is well placed in the rear of the mouse.

7.Wire and soldering the circuits.

DON'T OVERHEAT the lithium battery or IT MAY EXPLODE !

The means you should do it as quick as possible.

8. Testing the charging function, OK.

Settle down everything and turn on the mouse , it comes back to life.

Aha!(forget to mention , I tested in advance , 3.7V is ok for the mouse.)

Now it looks more like a real mouse than any other mouse in the world.

1. Connect to computer by a micro USB wire to charge.

2. You can use the mouse when it's charging .

3. Definitely, without cable is better, actually, I used it to upload this Instructable .

I call it Jude ;D because it's about "make it better". If you like it pls vote for it , thank you.