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Dedicated dash cam battery packs for extended parking mode: the safest way to run 24-hour vehicle surveillance without touching your car's starting battery. Modern vehicles with smart electrical systems can trigger battery warnings if a dash cam draws power while parked. A dedicated battery pack charges rapidly while you drive and then powers your dash cam independently when parked, giving up to 20 or more hours of parking mode coverage. Essential for BMWs, Audis, Mercedes, EVs and hybrids. Compatible with VIOFO, Vantrue and WOLFBOX parking mode systems. Fast AU shipping from Dash Cam Guys.