[sdiy] Lithium batteries & corrosion (Was: Retaining button state after power off?)

[John Speth]

> NiCd, NiMH and alkaline batteries contain potassium hydroxide
electrolyte,
> which is highly corrosive. These all seem to inevitably leak, given
enough
> time. I've also heard people recommend using the plastic-wrapped battery
> packs, as used in cordless phone handsets, but I've seen these leak as
well.

I've taken up the habit of taking whatever replacement battery I will use,
soldering long wires to it (watching my heat so I don't damage it),
wrapping it in shrink tubing and locating it far from any part where a
leak can cause damage.  It's no guarantee but it's cheap insurance.
Cleaning battery leakage is a PITA.

JJS