The Panasonic eneloop K-KJ55MBS66A includes 6 AA and 6 AAA (2100 cycle) eneloop batteries (battery color may vary), and a Panasonic 3 Hour quick charger BQ-CC55 eneloop ni-mh, low Self discharge batteries utilize Panasonic advanced rechargeable battery technology allowing them to be recharged up to 2100 times. eneloop battery cells deliver consistent power performance, maintain 70% of their charge for up to 10 years, come pre-charged (at the factory) using solar power and are ready to use out of the package. These eneloop cells also have increased storage life and extreme temperature performance down to -4 degrees Fahrenheit. The New BQ-CC55, 3 Hour Ni-MH battery charger delivers advanced, individual cell charging capabilities. Ideal for use at home, in the office, or on the road, this Panasonic CC55 charger is a convenient way to recharge any combination of up to four AA or AAA Ni-MH eneloop, eneloop Pro, or pro Ni-MH rechargeable batteries. The advanced eneloop quick charger features 4 LED charge indicator lights; 80-100% charged - Green, 20-80% charged,- Orange, and 0-20% charged - red. The charger also features a retractable AC plug.