Maha PowerEx MH-C1090F Pro Ten Bank 9 V Rapid Charger Ten Individual Charging Channels capable of charging up to ten 9V rechargeable batteries at a time. Microprocessor automatically switches to trickle charge after batteries are finished charging so tha Compatible with 7.2V, 8.4V, and 9.6V Rechargeable 9V Batteries Individual LED for each charging channels indicates when batteries are ready to go. No guessing abou Capable of even reviving older 9V batteries which may no longer be accepting a charge.