Horizon's inexpensive, high volume AA /AAA / 9V charger! This smart charger will independently charge 1 to 10 AA or AAA cells and 2 9V cells, NiMh or NiCads. LED light turns red in each slot when charging battery, Turns green after charge is complete. Automatically switches to trickle charge mode. Micro-processor controlled negative delta V (-V) cut off detection. LED blinks if cell is defective. Manual discharge function for extended life cycles. This charger is ideal for high volume applications such as wireless microphones, digital cameras flash units. Can be used with all NiMH cells, from 600 mah AAA up to 2850 mah AA, and 250 mah 9V. Cells do not get hot during charging process. Utilizes latest hi-tech charging mechanism. Worldwide usage 100-240V. DC car adaptor included. More information. We encourage you to make the most of your rechargeable battery purchase. Most of our customers begin with rechargeable batteries and battery charger for a specific use and then realize for a modest up-front investment, they can save a great deal of time and money by converting all their portables over to rechargeable. A typical family will spend $200 + per year on throw-away batteries. That's over $10,000 in a lifetime.