The eneloop 1500x Super Power Pack from Sanyo includes 12 AA and 4 AAA 1.2V NiMH rechargeable batteries, 2 C and D spacers, a 4-position charger, and a storage case. The batteries can be recharged up to 1500 times, and come pre-charged using power generated from solar energy for immediate use. These eneloop cells also have increased storage life and better performance in extreme temperatures than the original eneloop batteries. They're capable of operating in environments as cold as -4°F.
Each AA battery has a capacity of 2000mAh, while the AAAs are 800mAh. Both types feature a low self-discharge rate and are free of memory effect, allowing them to retain their maximum capacity even if they are only partially drained when recharged. They will maintain up to 75% of their charge after 3 years of storage. The batteries have a durable super-lattice alloy that is highly resistant to deterioration. It lowers internal resistance and delivers a long-lasting, stable voltage output. A strong, thin outer case has been added to the battery design to increase internal cell space.
The 2 C spacers enable you to use the AA batteries to power devices that take C cell batteries, and the 2 D spacers let you use the AAs to power devices that run on D cells. The 4-position AC charger accepts 2 or 4 of the AA or AAA batteries, and will also work with optional non-eneloop NiMH batteries. It can charge 4 AAs in about 7.0 hr or 4 AAAs in about 6.0 hr.