We found a cool article about salvaging lithium-ion batteries that you thought were totally dead, and how to reuse them for your embedded projects. The idea comes to us by way of Embedds.com, and in their write-up, they describe some of the ways one can tap into the power that is still left in one of these “dead” batteries from a laptop, cell phone, MP3 player, etc.
[Don’t throw away your dead Li-Ion batteries,] but instead take them apart and check if there are any of the individual cells alive. They can be reused in other projects. For instance [Karman] took a Macbook Pro battery pack and found two of three cells working. Then he took the individual cell protection circuit from a dead picture frame and paired it with one cell. This way he got a decent power supply for the same picture frame or any microcontroller project. Lithium cells are still pretty costly, so look around, maybe there are a few sources to scavenge them from and reuse.
So don’t trash those batteries just yet – hit up the links below for the goods on reusing your Li-Ion batts!