The Maha Energy MH-C490F battery charger can charge 4x 9V NiMH batteries in just 2 hours.
Measuring just 62mm x 75mm (2.5" X 3"), the MH-C490F charger has the Delta-V based microprocessor which allows the 9V batteries to be charged to their full potential. The microprocessor automatically switches from rapid charge to trickle charge after the batteries are finished charging, so that the batteries will maintain their full capacity.
Fast Recharging Time
Unlike old 9V battery chargers, the MH-C490F charger can charge up to four 9V batteries within 2 hours. No more waiting overnight to have the batteries fully charged. Suitable to charge any brand of rechargeable batteries including 7.2v, 8.4v and 9.6v batteries.
Recharge in the car
Unlike other chargers claiming they can charge 9V batteries in the car, the MH-C490F battery charger has a patented automatic step-up device that is capable of charging 9.6V batteries to full capacity. This is unique because 9.6V NiMH batteries need a minimum of 15V input to charge the batteries to their full potential. This charger is the one true 9V charger that is worthy to be called "car capable".