![will this work. I want to add a second battery for lights only. I want the second battery isolated from the car, just power on lights. the truck is an old diesel will this work. I want to add a second battery for lights only. I want the second battery isolated from the car, just power on lights. the truck is an old diesel](https://preview.redd.it/will-this-work-i-want-to-add-a-second-battery-for-lights-v0-k43xrdm7sre91.jpg?width=640&crop=smart&auto=webp&s=7782e02e087993f9d8012d466d59ffdd2f1c0e07)
will this work. I want to add a second battery for lights only. I want the second battery isolated from the car, just power on lights. the truck is an old diesel
![12v Car Auto Double Battery Isolator Protector Dual Battery Controller Smart Battery Manager Automatic Charging And Power Off - Battery Cables & Connectors - AliExpress 12v Car Auto Double Battery Isolator Protector Dual Battery Controller Smart Battery Manager Automatic Charging And Power Off - Battery Cables & Connectors - AliExpress](https://ae04.alicdn.com/kf/Hf6e0952a141742be8b6e0d9c150caaa6t.jpg)
12v Car Auto Double Battery Isolator Protector Dual Battery Controller Smart Battery Manager Automatic Charging And Power Off - Battery Cables & Connectors - AliExpress
![I just got a great deal on a 14 ft U-Haul truck with a new engine and transmission. Now the truck is in perfect run… | Dual battery setup, Jeep xj mods, I just got a great deal on a 14 ft U-Haul truck with a new engine and transmission. Now the truck is in perfect run… | Dual battery setup, Jeep xj mods,](https://i.pinimg.com/originals/2c/2b/24/2c2b24942c729c0245f55117b4616acb.jpg)