
Panasonic K-KJ55MC84CZ eneloop Power Pack; 8AA, 4AAA, and Advanced Battery 3...
Low self-discharge NiMH chemistry retains up to 70% of charge after 10 years of storage — standard rechargeable batteries lose most of their charge within months. Rated for 2,100 recharge cycles (standard model) or 500 cycles (Pro model with higher capacity). Made in Japan at Panasonic's Osaka factory. The cells maintain consistent voltage throughout discharge rather than the gradual voltage drop that causes devices to slow down. Pre-charged at the factory using solar power. These replaced disposable batteries in the BIFL community years ago and the consensus hasn't changed.
