This CTA digital battery replaces the Sony NP-QM91 digital camcorder battery. This high capacity lithium-ion battery pack triples the running time when compared to the NP-FM50. It was designed to meet or exceed OEM specifications and is 100-percent compatible to the original equipment chargers. Specifications: Chemistry: Lithium-ion Voltage: 7.2V mAh (capacity): 4200mAh Run time (shooting time): up to 6 hrs For use with the following Sony camcorder models: CCD-TRV108/CCD-TRV118/CCD-TRV128/CCD-TRV308/CCD-TRV318/CCD-TRV328/CCD-TRV608/DCR-DVD100/DCR-DVD101/DCR-DVD200/DCR-DVD201/DCR-DVD300/DCR-PC100/DCR-PC101/DCR-PC105/DCR-PC110/DCR-PC115/DCR-PC120BT/DCR-PC330/DCR-PC9/DCR-TRV10/DCR-TRV11/DCR-TRV140/DCR-TRV17/ DCR-TRV18/DCR-TRV19/DCR-TRV20/DCR-TRV22/DCR-TRV230/DCR-TRV240/DCR-TRV25/DCR-TRV250/DCR-TRV260/DCR-TRV27/DCR-TRV30/DCR-TRV33/DCR-TRV330/DCR-TRV340/DCR-TRV350/DCR-TRV360/DCR-TRV38/DCR-TRV39/DCR-TRV460/DCR-TRV50/DCR-TRV530/DCR-TRV6/DCR-TRV70/DCR-TRV730/DCR-TRV740/ DCR-TRV8/DCR-TRV80/DCR-TRV830/DCR-TRV840/DCR-TRV950/HVL-IRM/all similar models