1 Hour Intelligent 4 independent channels Fast Charger This is the pro of CHB-7N charger, it comes with 4 independent channel, capable of charging AA and AAA NI-MH batteries around 1-2hours, special intelligent COOL-CHARGING system for dynamic detecting battery temperature, small size, and you can charge it anywhere in home, car, boat, RV or any 12V power source. 1. Intelligent MCU controlled, switch to trickle charge mode automatically. 2. High charging efficiency: more than 85% 3. It can individually monitor battery condition dynamically, prolong the battery service life 4. Auto detects bad batteries, rescue over-discharged battery automatically when the charger is power on. 5. With full function of over-charging protection: -delta v/0 delta v cut-off. Over-voltage, and safety timer controlled. 6. Four (4) independent channels with individual LED charging indicator. It is like having four chargers. 7.It can charge 1, 2, 3, or 4 cells of different types per time. AA and AAA mixed type can be charged at the same time. 8. With the memory function, you can take out your batteries at any time very safely. 9. World wide voltage input AC 100v~240v, suitable for almost any country. 10. Charge anywhere in home, car, boot, RV or any 12v power source 11. Compact, fashion and weight.