OT very expensive AA size rechargeable batteries

[Murmansk]

£200 for a set of batteries including postage from USA

Am I missing something here or is this completely mad!?

[newshound]

Standard tactic when out of stock, to keep the listing "alive", isn't it?

[Murmansk]

[sid]

I buy my AA re-chargable Duracells on Amazon @ £10 for 4

[whisky-dave]

P&P seems a bit excessive too.

Rapid electronics doing similar differnt picture, 4 for £9.10

[John Rumm]

I think it is one of those ebay "lores", that it is better to leave a listing in place even when out of stock or unable to supply for some reason. Hence give it a silly price so that no one buys it.

[Jim GM4DHJ ...]

sellers do that when they are out of stock and don't want to cancel the advert ...

[Jim GM4DHJ ...]

take that back all the prices are mental

[Andy Burns]

The same seller's other items, stupidly high prices usually mean "waiting for stock"

[Clive Arthur]

They're pretty special - according to the listing they're Sealed Lead Acid which is somewhat rare for an AAA cell ;-)

[Scott]

Now showing as USD187.07. It must have gone on sale :-)

[Tim Streater]

Are these low-discharge, like Eneloops?

[charles]

People askcrazy prices on eBay sometimes. I was looking at at item, new cost £130, and found a second had one for £290)!

[newshound]

Maybe they have got the slots as free listings, so worth keeping hold of them?

[Ian Jackson]

I note that the seller's rating is somewhat lower than most. "96.5% positive Feedback"

[Paul]

Available for a small fraction of the price, as NiMH batteries.

Because these units are sold in Canada, there is dual-language on the packaging, so slightly different than the Ebay item. But just a packaging detail.

Paul

[Brian Gaff (Sofa]

Do we know what technology type these batteries actually are though? Incidentally why are so many batteries round, not square? Surely the bigger the cell the more power it has? Brian

[Steve Walker]

They are round because, at the basic level, they consist of a central anode, inside a metal cathode/casing, with the space between being filled with an electrolyte paste. Round keeps the construction simple and the spacing from anode to cathode equal all the way around.

In reality, there are multiple extra layers these days to make them leak resistant.

Car batteries are generally rectangular, as they use alternating, flat, lead plates for both anode and cathode, sitting in liquid electrolyte.

[Paul]

They make round-cell car batteries. But they're not flooded ones. The hardware store here has had these for at least ten years. I had no interest in buying one.

When the composition of the battery changes, the charging voltage ("when is it full"), is slightly different. I would only buy one of those, if it came with documentation.

Paul

[Steve Walker]

Yes. I've seen the round cell ones, that's why I put "generally". I assume that they are "gel" cells and that the plates are wound spirally, with gel between the plates and insulator between the plate pairs.