VEVOR Split Charge Relay Kit, 6mtr 12V, Automatic Dual Battery Isolator Kit with 140AMP Voltage Sense Relay VSR, Compatible with RV Marine Car Vehicle Truck Caravan Camper Yacht ATV UTV Boats Workshop

Very easy to install and works exactly as described. It charges the house batteries whenever the engine is running and automatically disconnects when it’s not. My batteries are now charging to 100% everywhere I go — perfect setup!

Excellent and keeps my starter battery safe! I have also used it to jump the starter battery since I keep forgetting to turn the manual headlights off. Reliable, simple, easy to install.

Works perfectly, very simple set up to add secondary battery for van or overland vehicle. Really any vehicle that needs a second battery when driving it is charging your second battery from the alternator. When the car is off, the second battery is separate from your starter battery so that you can use it for auxiliary power and not wear down your starter battery. Also a great option for boats or off-road vehicles.

This is a decent setup for the price. Plenty of wire to hook it up to both batteries. Instructions could be clearer but I figured it out. I wish it had a voltage display but other than that I dig it.

I am using my older 3/4ton pick-up to haul heating oil and hard wired the 12v pump to a separate battery. This kit isolates the deep cycle battery from the started battery but charges it when the engine is running. Makes sure the truck will still start after using the pump.

Included nearly everything to do the job. Everything was actually pretty decent quality. There was enough wire to go from an extended cab Tacoma to the camper shell. The only thing it could’ve had was a longer negative cable for the second battery. It has to go from the second battery to the frame so I had to go out and buy an additional 4 foot length of six gauge black wire. The system will keep up with most smaller inverters and is mostly dependent on the vehicles, alternator output. But it keeps this battery charged, which is just used to run to key making machines and charge a couple rechargeable batteries.

This is one of the most complete kits I have ever ordered it had everything needed to install and works great

Seems to work well! I think this product would work great on a larger boat. Only thing that has concerned me, is when I trickle charge the batteries, it can get a little warm.

Came with everything to install works good now I have my winch on its own dedicated battery.

Facile à monter, désaccouple les deux batteries de manière automatique, dès que la tension est descendue à 11v. Possibilité d’utiliser en mode manuel également. Deux leds, une bleue bien visible et une rouge beaucoup moins, plus un ecran leds affichant la tension. Une fois le système mis en place, en mode automatique, on oublie sa présence. Jusqu’à présent, tout se passe bien.

FLIPANTE CON EL PRODUCTO BARATÍSIMO Y DE CALIDAD MERGA VEVOR QUÉ ES GARANTÍA Y SÚPER FÁCIL DE MONTAR. UN AUTÉNTICO CHOLLAZO POR UNA TERCERA PARTE DEL PRECIO QUE ME DIERON EN OTROS SITIOS

Muy buen kit de montaje para segunda batería. Con todo lo necesario y el relé separador funciona muy bien

Superb. Tous on a besoin dans un carton. Je l'ai installé aujourd'hui et ça marche tres bien. Batterie de demarrage est isolé 5 sec après on coupe le contact et durant la conduit les deux batteries seront chargé. Sur borne de batterie (1) (start) que l'alternateur et le moteur de demarrage. tous autre connections compris celles ci de la voiture (éclairage, boitier, musique ect ect) sur borne (2). SAV tres vite et sans problèmes.