LiFePO4 versus standard lithium cells.

I was quite pleased to find that the solar street light I opened recently had a LiFePO4 (Lithium Iron Phosphate) cell in it. They are really well suited to that application due to their long term stability and superior number of charge/discharge cycles. The downside is that they are much bigger for a similar capacity. But that's not an issue in an application like this. Especially given the size of the battery compartment in the light.

Here's a link to Rich Rebuilds little incident. It's spectacular and also educational.
https://www.youtube.com/watch?v=WdDi1haA71Q

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