New improved NiMh rechargeable battery technology Already charged and ready to use Stays 85% charged after 1 year of storage Recharge up to 1000 times Sony's newest rechargeable battery technology seeks to bridge the gap between regular alkaline batteries and NiMH rechargeable batteries. Cycle Energy rechargeable batteries do not require initial charging and have a very low self discharge rate. They maintain 85 percent of their charge after one year and can be recharged up to 1,000 times. This new technology offers consumers the convenience of a ready-to-use rechargeable battery that is longer lasting.
The Sony Cycle Energy 2000 mAh Pre-Charged AA Rechargeable Batteries are low-self-discharge NiMH type, similar to the more well-known SANYO eneloop. Even their marketing claims sounded almost identical, such as:- 'Stays 85% charged after 1 year of storage'- 'Recharge up to 1000 times' (2nd-gen eneloop cells actually claim to achieve 1500 cycles)- 'Battery Capacity: 2000 mAh'Naturally, this leads to speculation that SONY Cycle Energy is just Sanyo eneloo..