Havis ChargeGuard Select CG.X — Automatic Vehicle Power On/Off Timer Switch

Overview

The Havis ChargeGuard Select CG.X is a compact, self-contained power management device designed to help manage vehicle electrical systems for mobile equipment. By automatically turning on connected gear when the engine starts and controlling how long devices stay powered after shutdown, it supports two‑way radios, data terminals, laptops, and other mobile computing gear without requiring a separate power switch.

Key benefits

• Programmable timer regulates accessory power to help prevent battery drain and improve reliability.
• Multiple sensing modes offer flexible integration with different vehicle electrical layouts, from ignition-based to alternator-based setups.
• LED indicators provide quick at-a-glance status for voltage conditions and device health.
• Direct wiring to the battery or ignition simplifies installation and reduces wiring complexity.
• Designed to support a range of mobile electronics, including two-way communications devices and portable laptops.

How it works

ChargeGuard Select is a programmable timer switch that connects to your vehicle’s power source. When the motor starts, the unit powers your equipment according to the chosen sensing mode. When you stop the engine, the timer delays the shutdown of connected gear, with a default two-hour setting that you can shorten to as little as 5 seconds or extend indefinitely. This gives you control to keep essential devices alive during short stops or long drives, depending on your needs.

Sensing modes and customization

Choose the sensing mode that best matches your setup:

• Automatic detection (AC)
• Isolated alternator detection
• Voltage rise detection (DC only)
• Direct ignition mode (HL)

These options provide the flexibility to tailor how and when your gear powers on and off, helping balance performance and power usage across different vehicles and duty cycles.

Use cases and real-world scenarios

Think of fleet technicians, delivery drivers, or field workers who rely on mobile devices while on the move. ChargeGuard Select can help ensure essential equipment is ready when you start the vehicle and remains powered for a programmable window after you shut down, reducing the need to re-power equipment during brief stops. The system is built to withstand the rigors of daily use while keeping the vehicle’s power system protected.

Technical highlights

• Self-contained unit provides circuit protection for a vehicle’s power system.
• Programmable timer regulates when equipment powers on or stays on after engine shutdown.
• LED indicates under and over voltage conditions for easy diagnostics.
• Protects mobile electronics from voltage anomalies while maintaining system accessibility.

With its plug‑and‑play wiring to the battery or ignition and configurable delay, ChargeGuard Select offers a practical balance of reliability, versatility, and maintenance efficiency for mobile work environments.