Dual Battery Isolator Kit, 12V 80A VSR, LCD Voltmeter

Dual battery isolator kit keeps your main battery ready to start while safely charging an auxiliary battery for accessories on 12V UTV, ATV, jet ski, and snowmobile setups. This 80A voltage sensitive relay (VSR) supports manual and automatic operation, adds a clear LCD dual-voltage display, and fits tight installs without vehicle modification. Built for mud, spray, dust, cold, and vibration, it helps stabilize power in demanding outdoor conditions.

• Delivers 80A 12V split-charge control to separate start and auxiliary batteries for reliable power management.


• Shows real-time main + auxiliary battery voltage on an LCD dual voltmeter for faster diagnostics and safer use.


• Protects electronics with a waterproof, dustproof, shock-resistant PA6 housing designed for harsh off-road conditions.


• Reduces relay cycling with a 15s intelligent delay to help prevent frequent switching and extend system longevity.


• Includes cables, lugs, terminals, and covers for a cleaner dual-battery install with minimal wiring changes.

When winches, lights, radios, and chargers drain power fast, a compact battery isolator with VSR control helps keep your starting battery protected without sacrificing accessory runtime. The small footprint mounts easily in tight bays, and the dual voltage display makes it simple to confirm charging status at a glance before you head out. Set up your dual battery system with confidence and grab yours today.

• Rated voltage/current: DC 12V, 80A


• Wire size: 13.3 mm² (6 AWG)


• Dimensions: 3.3 x 1.7 x 1.5 in (85 x 43 x 37 mm)


• Net weight (with accessories): 0.9 lb (0.43 kg)


• Main materials: PA6 plastic isolator housing + copper wire


• Delay function: 15 seconds (automatic)


• Included: 80A isolator w/ screws, dual-voltage LCD voltmeter, 2 ft (0.6 m) 6 AWG red cable, 1 ft (0.3 m) 6 AWG red cable, 1 ft (0.3 m) 6 AWG black ground cable, 2 terminal covers, 3 terminals, 3 cable lugs