Prices are checked against each store and labelled with when.
It checks today's price at every store, compares the alternatives and answers in about a minute.
The VEVOR Dual Battery Isolator Kit is a 12V, 140-amp voltage-sensitive relay that links a main and an auxiliary battery so both charge from the alternator and the auxiliary can back-feed the main when needed. It runs in automatic mode with adjustable start/stop thresholds, or in manual mode for reverse charging from a charged second battery. An LCD shows both battery voltages in real time, and a delay function stops the relay chattering when current is unstable. It suits UTV, ATV and off-road owners adding a second battery for winches, lights or accessories, and it works with lithium and lead-acid banks. Against simpler fixed-threshold isolators it adds the display, adjustable cut-in/cut-out and manual override; against premium smart isolators it is a basic relay without temperature compensation or app control.
In stockSold by VEVOR Distribution StoreReturns: Sold by a Walmart Marketplace seller; returns go to the seller under the seller's returns policy.
This dual battery isolator kit is a voltage sensitive relay for 12V dual battery systems. It charges two batteries at the same time without interrupting power to your devices. It works with both lithium and lead-acid batteries and adjusts charging voltage to the battery type. The start and stop voltage are adjustable.
It has manual and automatic modes. If the starter battery is low, switch to manual mode to reverse charge it from a fully charged auxiliary battery, so you can start the engine without jumper cables. A built-in delay function keeps the isolator from opening and closing repeatedly when current is unstable. An LCD shows both battery voltages in real time.
The housing is high-strength plastic that resists impact. It has a special treatment to keep out water and dust. The unit is compact and lightweight, and it can be installed under the hood or in an off-road vehicle, RV or boat.
