Vehicle electrical accessory designed to prevent parasitic battery drain and enable remote isolation, ZMURED Kill Switch. Ideal for owners of seldom-used cars, campers and boats who want fewer flat batteries and less roadside hassle. Is remote key-fob control and automatic low-voltage protection the right upgrade for your vehicle?
⚡ At a Glance
- • Power Control: Automatic low-voltage cut-off plus manual override for safe battery isolation
- • Best for: Owners of cars, RVs, boats, motorcycles and seasonal vehicles needing battery protection
- • Not ideal for: Users who require remote switching while the vehicle is charging or running above 13.5V
Remote battery disconnect with automatic shutdown at low voltage and a manual switch for override. Rated for 240A continuous use and supplied with two remote controls for convenient isolation.
Preserve battery life – thanks to automatic low-voltage cut-off
An internal voltage sensor monitors battery level and triggers a power cut when voltage falls below 11.8V, with a 120 second delay before disconnect. The system prevents repeated deep discharge events that shorten battery lifespan.
Reduced number of flat batteries and fewer jump starts, particularly useful for vehicles left idle for long periods. Owners can expect longer service life from their starting battery when frequent parasitic drains are an issue.
Remote convenience – with two key fobs for quick isolation
Two handheld remote controls are included for wireless on/off operation, while a manual switch remains available for direct control. Remote control functionality is disabled when the battery voltage rises above 13.5V, leaving manual operation active.
Quickly isolate the battery from outside the vehicle to deter theft or prevent overnight drains, with a fallback manual switch when the engine is running or charging. Two fobs let household members control isolation without accessing the engine bay.
Handles heavy loads – thanks to 240A rating and 500A instantaneous current
A robust switching mechanism carries a continuous current rating of 240A and tolerates short-term surges up to 500A, suitable for typical starter currents and accessory loads. Low standby consumption of around 3mA keeps the monitoring circuit efficient.
Suitable for petrol and diesel starters and common accessory setups found in cars, trucks, boats and RVs. Stable performance under load reduces risk of switch overheating or failure in everyday use.
✨ The 4 Key Reasons for ZMURED Kill Switch
- Stops parasitic drain - Helps preserve battery charge during long periods of inactivity
- Manual override switch - Allows reconnection when remote control is disabled at higher voltages
- Compact negative-line fit - Small footprint fits into tight engine bays for easy mounting
- Wide temperature tolerance - Operates reliably from -22°F to 194°F in varied climates
📋 Technical Details at a Glance
- Category: Battery disconnect switch
- Rated current: 240A continuous
- Rated voltage: 12V
- Power-off threshold: 11.8V ± 0.2V
- Instantaneous current: 500A
❓ Frequently Asked Questions
Q: Will the remote key fob work while the engine is running?
A: No, remote control is disabled when battery voltage rises above 13.5V, at which point only the manual switch can control power.
Q: Which vehicles can use this switch?
A: Most cars, boats, campers, RVs, travel trailers, trucks, ATVs, UTVs, motorcycles and beach cars with displacement under 4.0 are listed as compatible.
Q: How difficult is installation?
A: Installation uses a negative-line connection and requires the battery to be turned off before fitting; the compact size helps place the unit in tight engine bays.
🏆 Our Verdict
Perfect for owners of occasional-use vehicles who want to avoid flat batteries and deter opportunistic theft. Automatic low-voltage cutoff combined with remote key fobs and a manual override delivers practical battery protection and simple day-to-day control. While an upfront purchase, the included remotes and reliable protection make for useful long-term value.
