When I stick a AA battery on a Peltier, to work out which side is which on unmarked unit, it actually does "feel" very cold really quickly. Hot side is obviousl

When I stick a AA battery on a Peltier, to work out which side is which on unmarked unit, it actually does "feel" very cold really quickly. Hot side is obviously also very hot, very quickly. I'd think it's more likely that the hot side is going to be the problem. Dissipating that heat without something like liquid cooling and active fans.