Charge 4 AA or 4 AAA batteries easily with this Panasonic eneloop K-KJ17MCA4BA battery charger, which features an LED display with 4 indicator lights to let you monitor the status of each battery. Four included eneloop AA batteries offer immediate use. Compatible with most eneloop and eneloop pro NiMH AA and AAA batteries To deliver a reliable charge. Charges up to 4 batteries In 7 hours (AA) or 6 hours (AAA) for simple overnight charging. Auto shutoff Helps conserve energy. Overload protection Safeguards against sudden surges of power. LED display with 4 indicator lights Let you monitor the status of each battery’s charge for ease of use. Retractable AC plug Allows easy portability. 4 eneloop AA batteries Offer up to 2100 lifetime charges and retain up to 70% of charge after 5 years without use for long-lasting power.