The TLM-700HD 7" SD/HD LCD Monitor with V-Mount Battery Adapter from Datavideo is equally well suited for use in the field or studio. This unit automatically switches between PAL and NTSC standards, and can be powered with 12VDC or AC power. It also features a standard V-mount that allows you to use a universal battery from a variety of manufacturers.
 
https://www.bhphotovideo.com/c/product/621091-REG/Datavideo_TLM_700HD_TLM_700HD_7_SD_HD_LCD.html