ozzdownunder
New Member
Hi, is there a 12volt DC switching power supply, that when switching of the ignition key/power it not only switches to a 'back up battery' but 'when driving' it will issolate and charge the backup battery while still keeping a constant 12VDC power to the dash-cam (via a converter 12 to 5v) I prefer that there is no power drawn from the back-up battery while the car is active. There is a pcb eg >> (See attachment) XH-M350 Backup Battery Switching Module DC12V 150W Automatic Switching Battery Power Module but it is not at all clear if this will charge the back-up battery while driving. http://www.icstation.com/m350-backu...c-switching-battery-power-module-p-13096.html I would prefer a 12VDC back up battery/power bank as these tend to charge quicker imop.