and being the gateway to china.
i see 'new' 2700 sanyo nimh aa in a green wrapper appearing on fleabay. being sold from korea. HR3UG. cant find any other info.
i can't seem to find it on "fleabay"? my guess is what you are referring to is:
Sanyo Twicell
http://en.ca.sanyo.com/Industrial-Batteries/Twicell-Ni-MH
these batteries are intended for
industrial use (such as rechargeable power drills, screwdrivers, cordless phones, RC cars etc) and are only available at those
really professional hardware stores selling the finest quality, high precision tools. afaik, they are essentially the same as their consumer counterparts but they need to pass through extra & stricter QC quality control (you can call them "the better batches"!) and should be "reliable" enough to operate under "more extreme & hostile" working environments (e.g. super humid & high temperature).
Panasonic also has a range of industrial rechargeable batteries selling here if u know where to buy~~
i don't see a reason for average consumers to buy them except for out of curiosity! (last time i checked the price is somewhat between Eneloop 2nd Gen and Sanyo XX 2500mAh)
the
consumer version here looks like this (i still have a pair of at least 4-5 year old 2700mAh AA (still working!) hanging around & at least 8 1000mAh AAA):
they used to have a 2500mAh in the same "wrapper" as the 2700mAh and were discontinued at least 1-2 years ago & replaced by 2500mAh "orange" with improved "LSD" properties.