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This heavy-duty 3-in-1 unit delivers 120A of clean regulated power to run full 12V systems from a wall outlet, replace an alternator at shows or benches, and safely charge or maintain batteries without risk of overcharge. Perfect for demo cars, home racks, and test benches with or without a battery attached, it provides stable output for high-demand audio setups. A built-in multimeter display gives live readout of Voltage, Current, and Average Amps-per-Hour for precise system control at all times.
This system intelligently regulates charging to protect AGM, GEL, Lithium-Ion, and LiFePO4 batteries while maintaining optimal voltage stability during operation. Its true 120A / 14.4V constant output can both fast-charge large banks and directly power up to 2000W systems with no battery attached. For extreme builds, pairing with a 100Ah battery lets systems up to 4500W run for about an hour — expandable further with larger capacity banks.


This unit features an automatic maintainer loop that cycles between 14.4V and 13.8V with timed equalization to prevent overheating and extend overall battery life. It enables fuel-free demo operation, eliminating engine idling to save fuel, reduce wear, and still deliver full system output during events or testing. With adjustable voltage and amperage control, you can fine-tune output to match your power source or prevent breaker trips when using weaker household circuits.
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