





🔌 Power smarter, not harder — never get stranded again!
The Deizang JayCorp 12V Dual Battery 140A Smart Isolator is a compact, rugged voltage sensitive relay designed to automatically manage charging between two batteries without voltage drop. Featuring dual sensing technology, it ensures the starter battery is fully charged before engaging the auxiliary battery, preventing power drain and protecting sensitive electronics. Easy to install with water and dust resistance, it’s ideal for automotive, marine, and RV applications requiring reliable multi-battery charging.
| Connector Type | Wired |
| Contact Material | Silver Copper |
| Contact Type | Normally Open |
| Current Rating | 140 Amps |
| Mounting Type | Surface Mount |
| Brand | ITHARION |
| Operation Mode | Automatic |
| Coil Voltage | 12 Volts |
| Contact Current Rating | 140 Amps |
| Minimum Switching Voltage | 13.4 Volts |
| Specification Met | Iatf16949-2016 |
| Manufacturer | True Amalgamated |
| Item Weight | 13.4 ounces |
| Product Dimensions | 2.5 x 2.5 x 2 inches |
| Item model number | VSR12 |
| Is Discontinued By Manufacturer | No |
| Manufacturer Part Number | VSR12 |
| Voltage | 12 Volts |
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