ONE Inverter's AP Series MPPT solar charge controller covers full current specifications ranging from 20A to 120A, catering to small residential off-grid solar systems, RV mobile power, remote farm stations and large commercial energy storage projects. Integrated with cutting-edge DSP microprocessor control and advanced MPPT tracking technology, this series delivers up to 99% ultra-high energy conversion efficiency, setting a premium standard for solar charge regulators with stable performance, comprehensive safety protection and wide compatibility.

At the heart of the product lies its advanced MPPT core driven by a high-precision DSP microchip. Unlike low-end PWM controllers that waste solar energy, this unit continuously tracks the maximum power point of PV arrays in real time. Even on cloudy, overcast days with unstable sunlight, it captures every available watt of solar power and transfers it to batteries with minimal thermal loss. The 99% peak conversion rate drastically improves solar energy utilization, shortening charging cycles and maximizing the return on investment of your solar panel array. The whole series supports parallel output design, allowing multiple units to work together to expand charging capacity freely, which is extremely practical for large-scale industrial and villa solar storage projects.

This series features a user-friendly dual LED & LCD interactive display system. The front high-definition LCD screen clearly visualizes all core operational data, including PV input voltage, real-time charging current, battery voltage, daily power generation and cumulative total energy output. Four intuitive physical control buttons enable installers to adjust charging parameters effortlessly without extra software. Multiple customized charging modes are pre-programmed inside the chip, perfectly matching Gel, SLA, AGM, flooded water lead-acid and LiFePO4 lithium batteries, eliminating the need to switch controllers for different storage battery types. It adopts scientific three-stage charging logic: constant-current MPPT bulk charge, equalization charge and floating maintenance charge, which effectively prevents cell imbalance and extends battery service life significantly.

The most outstanding highlight of the AP series is its complete nine-fold all-round safety protection system, which fully safeguards your entire solar power system against accidental damage. It includes reverse connection protection, over voltage protection, over discharge protection, over charge protection, high & low current protection, overload protection and over temperature protection. Whether users mistakenly reverse the positive and negative wiring of solar panels or batteries, or the system faces overload, overheating, abnormal voltage and current fluctuations, the controller will automatically cut off the circuit to avoid burning batteries, PV panels or internal circuit boards. The built-in intelligent variable-speed cooling fan works with the over-temperature protection function: it accelerates heat dissipation under heavy loads and lowers rotation speed at low temperatures to reduce noise and mechanical wear, ensuring long-term stable operation under continuous full-load conditions.

Constructed with rugged metal alloy casing, the AP series boasts excellent heat dissipation, anti-shock and dust-proof performance. Multiple models with compact wall-mount structures are available for flexible installation in power cabinets, cabins and outdoor equipment rooms. Every unit undergoes strict aging and load testing before factory delivery, paired with a 12-month official warranty to eliminate users' after-sales worries. Equipped with an industrial RS485 communication port, it supports remote data monitoring and centralized energy management, ideal for intelligent off-grid solar stations that require real-time data tracking.

From small 20A household RV systems to 120A large commercial solar storage, the AP Series MPPT solar charge controller balances ultra-high efficiency, full safety protection, wide compatibility and smart monitoring functions. It is a trustworthy high-performance charging core for all off-grid solar power systems, ideal for solar distributors, professional installers and end users who pursue stable quality and long service life.