# Generic batteries

I have just received two sets of 4 rechargeable batteries that I'd
recently ordered, one of AA and one of AAA.

I have several devices which use this type of generic battery. In
fact, when I am purchasing electronics, I look specifically for
devices which use generic, user replaceable, batteries.

My preferred battery brand is Eneloop[1]. Produced in Japan by either
Panasonic or Sanyo, these batteries arrive pre-charged, retain the
majority of their charge (70% over 10yrs) and have a very good run
time. 

I have not found a better quality rechargeable battery. In
combination with a smart charger, which varies the current put into
the battery depending on state and stops charging them when they are
full, on a per cell basis. They provide a very good reliable,
instantly replaceable, generic source of power.

Additionally, the new packaging informs us that the batteries are
"pre-charged with solar energy" and that the packaging uses "68% less
paper".

Great product.

![1]( gopher://gopher.icu/I/images/eneloop.jpg )