Extended Parking Surveillance Duration: Seamlessly utilizes stored energy, ensuring uninterrupted surveillance while safeguarding your vehicle's battery life during parking. Two Charging Setups: Cigarette lighter power for simplicity & hardwire connection for faster charging. Extensive Compatibility: Compatible with 70mai and most other dash cams with parking surveillance cables, ensuring seamless integration for various setups. Automatic Current Limiting: Dynamically adjusts the charging current based on the charging method, preventing battery depletion. Delayed Charging: Starts charging 20 seconds after vehicle startup, preventing excessive load on the battery. Enhanced Battery Protection: Safeguards against temperature extremes, overcharge, short-circuit, and more for battery longevity.