I know this is probably a bit out of scope, but I thought this was perfect for a project and so bought one (the S18V20F9, that is).
Reading the description it even says:
However, what that does NOT address is the problem of NiMH maximum cell drainage… From what I’ve ready, you typically don’t want to go below 1V/cell, and since the S18V20F9 seems to be happy all hte way down to 3V, it would kill a pack of 8-AA batteries, or so I think.
What is the preferred way to leverage the S18V20F9 unit to maximize the capacity of a pack of NiMH cells but at the same time not destroying them? I wouldn’t ask here so much, but since the product page itself does reference using NiMH it doesn’t seem unreasonable to follow-up on it.