If you are one of the users of wireless mouse, that so convenient because you move it wherever you want, but just as inconvenient as the AA (or AAA) must be recharged or replaced very often, you might be interested in the possibility of increasing the duration of the mouse by replacing the batteries with a lithium battery, perhaps borrowed from a cell phone that you no longer use.
Certainly, the task is not easy, partly because much depends on the size of the mouse, the battery and the lithium battery that you have available. However, once the exchange was successful, the mouse seems to work well and provide a more satisfying life that date from the batteries “traditional”.
Only drawback? It remains necessary to remove the battery every time you have to reload, but can someone think in the near future to implement a charging system using a USB mouse already changed like this.
If you want to try the job, find all the instructions on Instructables appropriate.