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⚡ Stay charged, stay unstoppable — power your journey with WirthCo!
The WirthCo Battery Isolator is a compact, high-performance 12V dual battery management system designed to automatically charge an auxiliary battery from a single alternator while isolating the starter battery. Rated for 125 Amp continuous and 150 Amp peak current, it features electronic switching control, manual override for jump-starting, and IP62 water-resistant housing. Built-in surge and overcurrent protection make it ideal for vehicles with electronic ignition systems, compatible with lead acid, AGM, and gel batteries. Perfect for professional drivers and adventurers seeking reliable, efficient power management in any environment.










| ASIN | B0058SGDFK |
| Amperage | 150 A |
| Best Sellers Rank | #213,272 in Automotive ( See Top 100 in Automotive ) #748 in Battery Chargers |
| Brand | WirthCo |
| Customer Reviews | 4.5 4.5 out of 5 stars (698) |
| Date First Available | June 30, 2011 |
| Item Weight | 15.2 ounces |
| Item model number | 1213.1241 |
| Manufacturer | WirthCo |
| Manufacturer Part Number | 010054200929 |
| Model | Battery Isolator, 125A |
| OEM Part Number | 20092 |
| Product Dimensions | 5.1 x 5.7 x 2.3 inches |
| Voltage | 12 volts |
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