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🔌 Dual power, zero downtime—charge smarter, adventure longer!
The Heart Horse 3M 12V 140Amp Split Charge Relay Kit is a versatile dual battery isolator featuring a voltage sensitive relay that automatically manages charging between two batteries. Designed for a wide range of vehicles including campervans, SUVs, ATVs, boats, and RVs, it offers 140 amps of current capacity, IP68-rated durability, and easy installation with included accessories. Its smart voltage cut-in/out protects your main battery while powering auxiliary systems, making it an essential upgrade for reliable off-grid power management.








| ASIN | B0CF8F7B6N |
| Best Sellers Rank | 3,137 in Automotive ( See Top 100 in Automotive ) 5 in Car Relays |
| Brand | Heart Horse |
| Coil Voltage | 12 Volts |
| Contact Current Rating | 140 Amps |
| Contact Material | Copper Alloy |
| Contact Type | Voltage Sensitive |
| Country Of Origin | China |
| Current Rating | 140 Amps |
| Customer Reviews | 4.1 4.1 out of 5 stars (142) |
| Manufacturer | YYGS_AMZgb |
| Manufacturer Part Number | sku6197-yy |
| Minimum Switching Voltage | 13.3 Volts |
| Model Number | sku6197-yy |
| Mounting Type | Screw Mount |
| Operation Mode | Automatic |
| Wattage | 1680 watts |
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