Dave Platt wrote:

On a different Sanyo page (http://www.eneloopusa.com/eneloop.html) they
say that they only provide warranty on the batteries if an Eneloop
or other Sanyo-branded NiMH charger is used. "Quick" chargers (those
charging in under 2 hours) should not be used, as these may reduce the
life of the battery... "2 hours or more" charging rate is recommended
(e.g. 0.5C or so).


That is very helpful, Dave, especially since I have a very fast charger
that would be very hard on these cells.

I'll get a set and use them on my slower chargers, and also warn people,
no faster than a two-hour charger for the new chemistry cells. (I have a
15 min Energizer charger that does well with Energizer AA and AAA cells,
but have not had a chance to evaluate lifetime. The cells charge nicely,
but 15 seems very hard charging.