DSTE 2x NP-BX1 Replacement Li-ion Battery for Sony DSC-H400 HX50 HX60 HX300 HX400 HX90V RX100 II III IV WX300 WX350 WX500 HDR-GW66V GWP88 CX240 AS30V RX100IV DSC-RX1 RM2 AS50 RX1R II RX10 II Camera Battery Type : Li-ion Battery Capacity : 6.5Wh/1800mAh Output Voltage : DC 4.2V (max)/ DC 3.6V (mean) Info Function for Life Indication High Capacity for Stamina Full coded version, show battery level in camera screen. No memory effect, can be charged or dischargered at anytime. Perform as good or better than the top branded batteries on the market.