The New Way to Upgrade RV Electrical Systems (No More Battery Relocation Kits!)
August 17, 2025 · 17 min · 95K views
What this video covers
Upgrading an RV electrical system by installing a high-capacity lithium battery bank and inverter-charger no longer requires removing the factory 12-volt lead-acid battery or using a battery bank relocation kit.11:40 The updated installation method leaves the original OEM 12-volt system—including the converter, battery, and DC loads like trailer brakes, slide-outs, and jacks—entirely intact.11:16 The MultiPlus inverter-charger splices into the AC input line between the shore power/generator transfer switch and the main 120-volt AC breaker box.10:14 This configuration allows the MultiPlus to provide 120-volt power to the breaker box regardless of the source, keeping the factory converter powered and the original lead-acid battery charged.13:48 This approach simplifies installations for 12-volt, 24-volt, and 48-volt systems by isolating the new lithium bank from the factory DC circuitry.12:53 It eliminates the need for voltage converters or complex rewiring of OEM components while ensuring critical safety systems like trailer brakes remain powered by the factory-intended battery.13:52
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