Style:AA 2 Pack w/ Charger Product description Charges up to 2 AA eneloop
batteries in approx. 4 hours or 2 AAA eneloop batteries in approx. 2
hoursCompatible with other rechargeable AA/AAA NiMH batteriesLED charge
indicator light 100-240V worldwide voltage Built-in foldaway plug designed for
convenient travel Includes two 2000mAh AA eneloop precharged NiMH batteries
From the Manufacturer Why Sanyo eneloop? Sanyo eneloop rechargeables can
replace an entire kitchen drawer's worth of dry cell batteries You already
know the benefits of using conventional rechargeable batteries. But Sanyo
eneloop batteries have advantages over other rechargeables that put them a
step ahead. Sanyo eneloop batteries are an excellent choice for your
rechargeables because: They can be used right after purchase They consistenly
yield high performance They have a long shelf life with no loss of energy They
can be used everywhere They are environmental friendly Self-Discharge: Why
Conventional Rechargeables Don't Cut It Conventional rechargeable batteries
have numerous advantages that make them great to use for your portable
electronics. But they also come with certain disadvantages. After purchase,
rechargeable batteries have to be charged before they can be used. And once
charged, rechargeable batteries lose the stored energy rather fast. The
charging takes quite long and rapid chargers are expensive. Not only that, but
continuous charging or frequent charge to "top off" the lost energy (without
complete discharge) can destroy the battery. All these negative attributes
have one root-cause: self discharge. Self-discharge means that a charged
battery slowly discharges itself without any equipment consuming any current.
This is the reason for rechargeable batteries being sold in a discharged
state. And this is the reason that keeping charged batteries for some time did
not make any sense. When you needed them, the energy was gone. Sanyo eneloop
batteries have an extremely low rate of self-discharge, which means they hold
their stored energy for a very long time--charge your batteries once and put
them in your kitchen drawer, and over a year from now you'll still be able to
use them right away, without needing to charge them again. Under the Hood: How
eneloop Controls Self-Discharge How can the self-discharge in the eneloop be
so reduced? The self-discharge of Ni-MH batteries is caused by three main
reasons: The chemical decomposition of the cathode The natural disaggregation
of the anode Impurities of the anode The chemical decomposition of the cathode
has been reduced substantially by the use of a new hydrogen-absorbing
superlattice alloy. As an additional benefit the superlattice alloy increases
the electrical capacity of the battery and reduces the internal resistance,
which allows higher discharge currents than conventional rechargeables. Also,
the anode has been strengthened by the improvement of the electrolyte
composition, which reduces the natural decomposition by increasing the oxygen
over-voltage. This gives eneloop batteries a number of advantages over
traditional alkaline batteries, including up to four times more power when
used in a digital camera, high performance even at low temperatures (down to
23 degrees F) during your winter vacation, and a vast cost savings in the long
run. The eneloop advantages are even more glaring when compared to typical
NiMH batteries: not only are they ready for use right out of the box, but they
generally last longer than most NiMH batteries (continuous and frequent
recharging can destroy other NiMH models) and save both time and money
(traditional NiMH charging is slow when you're in a hurry, while rapid
chargers are expensive). All told, you can recharge eneloop batteries up to
1,000 times without experiencing a "memory effect"--just charge the amount you
need and you're set.