In uk.d-i-y Owain wrote:
Ian Stirling wrote:
The worst that can happen if it's wrong is that it explodes showering
you with hot caustic electrolyte.

At least if it's an AA cell the quantity of hot caustic electrolyte will
be rather limited.

I suppose the effect might depend on which part of his anatomy the OP is
shaving at the time. ;-)

Even small amounts of hot caustics can be almost instantly blinding.