PowerMax 35 Amp RV Power Converter Charger | 12V Smart 4-Stage Battery Charger | 110V AC to 12V DC | Adjustable 13–16.5V Output | Lithium Compatible | Quiet Fan | PD9135 Upgrade | PM4-35A

Features

• 🔌 35 Amp RV Converter & Charger – The PowerMax PM4-35A delivers a powerful and consistent 35 Amp 12V DC output, perfect for RVs, travel trailers, campers, and mobile homes. This RV converter power supply charges batteries and powers 12V systems from any 110V AC source. It's a high-efficiency, reliable replacement for outdated models like the PD9135, designed to meet the power needs of today's off-grid and mobile living enthusiasts, ensuring stable performance and extended battery life.
• 🔋 4-Stage Smart Battery Charging – This RV power converter features a built-in 4-stage smart battery charger, including Bulk, Absorption, Float, and Equalization modes. Designed to optimize battery life and performance, it works seamlessly with AGM, Gel, Lead-Acid, and Lithium batteries. With automatic voltage regulation and safe charging protocols, it's perfect for long-term RV use, protecting batteries from overcharging and reducing maintenance for RVers, boondocks, and mobile technicians.
• ⚡ 110V AC to 12V DC Power Supply – Converts shore power (110-120V AC) into a smooth, clean 12V DC output to power all your RV's electronics and accessories. Acts as a dependable power converter for RV appliances, lights, pumps, and more. Whether hooked to campground power or a generator, this converter ensures stable output and protects sensitive devices from voltage drops or surges. It is ideal for both battery charging and powering your entire 12V system without interruption.
• 🛠️ Fully Adjustable Voltage Output – Unlike many fixed-voltage models, the PM4-35A offers adjustable voltage output ranging from 13V to 16.5V DC. This feature lets you fine-tune the charging profile for different battery chemistries, including lithium, AGM, gel, and traditional lead-acid types. Customizable output ensures proper charging, battery longevity, and compatibility with various RV systems. Perfect for tech-savvy RV owners or off-grid setups requiring precision control.
• 🔇 Ultra-Quiet Cooling Fan Operation – Features one of the quietest fans in the industry with thermal speed control that only activates when needed. Enjoy silent operation during nighttime or in noise-sensitive environments. This converter's ultra-quiet fan ensures your living space stays peaceful, preventing overheating and maintaining performance. Designed for RVers, van lifers, and mobile professionals who value both comfort and dependable, efficient power conversion.
• 🚐 Lithium Battery Compatible Design – Specifically built for use with lithium iron phosphate (LiFePO4) batteries, the PM4-35A provides the correct charging profile and adjustable output voltage required by modern battery systems. Ideal for users upgrading their RV or solar power setup, this converter ensures safe, efficient charging. It also works with AGM, gel, and flooded batteries, making it one of the most versatile converters and a top PD9135 alternative.
• 🧰 Stable Power for ECM Reprogramming – Delivers clean, constant voltage with zero ripple—ideal for ECM reprogramming, automotive diagnostics, and scan tools. Perfect for technicians and mechanics who need reliable 12V power for reflashing, coding, and ECU programming. This unit maintains voltage without draining your vehicle's battery, making it a must-have power supply for automotive professionals and an excellent tool for RVers with modern electronic control systems.
• 📏 Compact & Rugged Construction – This RV converter is designed to last, built tough with high-quality components, and housed in a corrosion-resistant metal case. Measuring 11" x 8.5" x 4.2", it fits tight compartments and small electrical bays. The PM4-35A withstands vibrations, temperature shifts, and moisture typical in RV and marine environments. Whether off-roading or cruising, this converter keeps your 12V systems running smoothly and efficiently in all conditions.
• 🔌 Direct PD9135 Replacement Upgrade – Upgrade from older models like the Progressive Dynamics PD9135 with this feature-rich converter. The PowerMax PM4-35A offers more adjustable voltage, lithium support, ultra-quiet fan, and robust power output. It's the ideal replacement for outdated converters, giving you modern functionality without sacrificing compatibility. Trusted by RV owners, technicians, and solar users who demand better power control, more intelligent charging, and long-term reliability.
• 🌎 Wide Application Versatility – This 12V power converter works flawlessly across various platforms: RVs, campers, travel trailers, boats, solar systems, off-grid cabins, and automotive shops. It's perfect for charging batteries, powering 12V devices, or maintaining voltage during repairs. Whether you're on the road, at a campsite, or setting up a mobile workstation, the PM4-35A delivers clean, adjustable power wherever it's needed and built for those who live and work on the move.