I did look at that, the prices seem pretty high .... looking to stick them on E-Bay as I don't need them, but they are not particularly modern - the remote display and the alternator regulator look like they have never been used, even if the boxes are a bit shabby.Try this, may give you some idea of value?
sterling power - Google Suche
They might not be any good.A2B are very popular and pricey - you'll sell it in a day if you go in at maybe 75% of new
They might not be any good.
Neither of those are diode splitters thoughMemories of the old days of Diode splitters for split battery charging ... things have moved on a lot since those days ....
Neither of those are diode splitters though
Absolutely.If they visually look un-corroded and are still new in box its very likely they will work and I am sure the OP is an honest sort of chap who would refund if they turn out to be broken.