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๐ Power up your adventure with flawless dual battery control!
The MaySpare Dual Battery Isolator Kit is a 12V, 140A voltage-sensitive relay system designed to automatically manage and charge two batteries. It activates at 13.3V and disconnects at 12.8V to protect your main battery, ensuring your vehicle starts reliably every time. The kit includes all necessary wiring and connectors for easy installation and is compatible with a wide range of vehicles including ATVs, boats, RVs, and trucks.





| ASIN | B081JL6ZXP |
| Best Sellers Rank | #308,546 in Automotive ( See Top 100 in Automotive ) #20 in Automotive Replacement Battery Relocation Kits |
| Brand Name | MaySpare |
| Coil Voltage | 12 volts |
| Connector Type | Screw |
| Contact Current Rating | 140 A |
| Contact Material | Silver |
| Contact Type | Normally Open |
| Current Rating | 140 A |
| Customer Reviews | 4.4 4.4 out of 5 stars (372) |
| Manufacturer | MaySpare |
| Minimum Switching Voltage | 13.3 volts |
| Mounting Type | Panel Mount, Surface Mount |
| Number of Terminals | 3 |
| Operation Mode | Automatic |
| Part Interchange Info | Voltage Sensitive Relay |
| Part Number | US-Battery kit |
| UPC | 742089521075 |
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