These are great for stress testing batteries, owners, etc. I’ve had pretty marginal luck with them, but others may have gotten past their quirks and foibles.
I have four known to function, one unused, one suspect of being toast. These may be light mounting screws, I think I’ve got most of the magnets, whatever. If someone wants them and is willing to pay shipping to get them, send me a PM here. If no-one chimes in in week or so, I will consign them to the local scrap electronics recycler.
Shipping to be paid by Paypal in advance. I really don’t want to expend any more $$$ on these guys.
–Richard
EDIT: spoken for, shipping paid, packed, will go out tomorrow