LED voltage display Real-time LED readout shows battery voltage at any time so you can monitor battery health at a glance. Why you need it Prevents unwanted battery drain by automatically disconnecting the battery when voltage falls to a preset threshold. Provides theft protection by cutting power remotely and isolating the battery. Extends battery life and protects the vehicle electrical system by avoiding deep discharge and managing short-term current surges. Key features and performance Rated current: 240 A at 12 V; handles up to 500 A short-term surge current for reliable protection under heavy loads. Low standby consumption: only 3 mA. Minimizes self-drain while the unit is idle. Automatic disconnect threshold: 11.9 V ± 0.2 V. Unit initiates power cut when voltage drops below this level. Automatic shut-off delay: 180 seconds after voltage drops below 11.9 V to prevent nuisance shutdowns from brief voltage dips. Remote control behavior: remote control is disabled when voltage exceeds 13.2 V to avoid accidental shutdowns while driving; in that condition shut-off must be performed manually. Separation value for optimal functionality: 11.8 V ± 0.2 V. Operating temperature range: -42°F to 194°F (-5.5°C to 90°C). Panel leakage indicator shows parasitic current levels: low (0.5–2 A), medium (2–5 A), high (>5 A). Compatibility and fit Designed for most 12 V vehicles with engine displacement under 4.0 L. Compatible with cars, trucks, caravans, travel trailers, motorcycles, and other 12 V systems. Fits negative post sizes from 9–13 mm and 15–17 mm. Practical benefits Energy saving: very low standby draw preserves battery charge during long storage or infrequent use. Vehicle protection: prevents deep discharge that can damage the battery and strain electrical components. Diagnostics: the leakage indicator helps locate parasitic drains so you can address electrical faults before they worsen. Theft deterrence: remote power isolation reduces the risk of unauthorized vehicle use. Typical use scenarios Winter storage: keep a seasonal vehicle, motorcycle, or trailer disconnected to prevent battery drain without removing the battery. Long trips and camping: isolate accessory loads when the vehicle is parked for extended periods to avoid dead batteries. Fleet or parked vehicles: remotely cut power for theft protection and use the leakage indicator to spot vehicles with excessive parasitic draw. What to expect Reliable, low-current standby operation combined with robust short-term current handling. Visible voltage monitoring and clear leakage-level indicators to guide maintenance decisions. Automatic protections tuned to prevent unnecessary shutdowns while still preserving battery health and system safety.