12V & 24V Heavy-Duty Wheeled Battery Charger Maintainer with 300A Jump Start for Trucks SUVs RVs - Manual Charge Control & Ammeter Display

300A Cranking Power: Jump-start large truck and RV engines instantly with high-current boost mode, backed by heavy-duty copper clamps that ensure stable power transfer even in subzero conditions. Dual Voltage Charging: Select between 12V/35A and 24V/35A outputs to efficiently charge batteries from 30Ah to 450Ah, compatible with AGM, gel, and deep-cycle types for versatile vehicle support. Real-Time Monitoring: Track charging progress precisely using the integrated ammeter display, allowing users to identify weak batteries and optimize charging duration for maximum battery lifespan. Industrial-Grade Mobility: Move effortlessly across garages or job sites using the reinforced steel frame, puncture-resistant wheels, and ergonomic handle designed to withstand repeated daily use. Extended Reach System: Connect to batteries in tight engine compartments using 6ft booster cables combined with 6ft AC power cord, featuring corrosion-resistant terminals for reliable performance in humid environments.