The new type has a higher voltage rating *1.6V* and about the same amount of current as NiMh as they are rated at 2500 mWh *1.25V X 2000mAh = 2500mWh*.

Three Sanyo "Eneloop" batteries in a AA to D adapter seem to last a bit longer than 5000 mAh NiCad D cells do. I'd say a bit more than teo sets of carbon zinc cheap ones, but with more power.

I'm thinking with encresed voltage even with about the same amount of available power may mean longer life and perhaps a bit more punch.

Has anyone givin them a shot?

Interesting, not heard of NiZn cells before...

It could be useful to have a couple of those in some remote controls I have. Normal rechargeable batteries don't have enough kick in them to operate the aforementioned, so I am still stuck using regular alkaline disposable batteries in them.

Do you know if they require a special charger or can they be charged in normal NiCD/NiMH chargers?

Whatever you do don't put them in a slow NiCd or NiMh charger as they will leak hydrogen.
I found out that running them in parallel makes them leak hydrogen as well. Using them in those multiple AA cell to D cell converter things may not be the best idea.
 
In the new Lasonic iPod box they'll last for about 5 hours and provide as much punch as "long life " batteries or more than NiMh AA cells, or about the same as NiCad D cells when used 1 per D cell adaptor. It's not ideal, but for the price it can't be beat. For $16 at Big Lots you can get both a set of 4 with a charger and a pack of 8. $16 for 12 batteries and a charger isn't bad at all. So for $24 you could have 20 batteries and a charger. If you could run them in paralell they'd be ideal.

I did NOT have an iPod or anything else on it that would charge and drain the batteries.

BTW just for the recod if you have one of these you want to throw the swich over to AC when you're done with it or it will drain the batteries waiting for you to hit the on button on the remote. When you turn if "off" it dosen't really shut off, it goes into stand-by mode.

They haven't been out for very long and I think there's only one outfit that makes them.

yeah, noticed that they are new to the market. How many charge cycles do they provide? Very, very cool with 1,6V compared to old 1,2V!

I'm not sure.