EARNMee 120A MPPT Solar Charge Controller 12–96V, PV 230V — High‑Power, Multi‑Chemistry Charging

The EARNMee 120A MPPT Solar Charge Controller is a high-power, multi-voltage regulator that manages PV arrays up to 230V VOC and batteries from 12V to 96V, delivering efficient MPPT charging for lead‑acid, GEL and lithium battery systems.

Designed for larger off-grid arrays and demanding power setups, this MPPT unit automatically detects system voltage and optimizes energy harvest while offering built-in protections and communication options. It supports a wide range of battery chemistries (including Gel, LiFePO4 and lithium-ion), provides full-power input to meet complex loads, and includes safeguards such as overcharge, overcurrent, overheating and short-circuit protection. The controller ships with RS485 communication via an RJ12 port for remote monitoring and integrates activation routines to revive low-activity lithium cells.

How does this MPPT controller improve solar array efficiency?

The EARNMee MPPT continuously tracks the photovoltaic array's maximum power point to extract more energy than a conventional PWM regulator. It adapts to changing sunlight and load conditions, increasing effective charging power and reducing energy loss.

• 120A charge current for high-capacity battery systems
• Supports PV VOC up to 230V for larger string configurations
• Automatic system voltage detection from 12V to 96V
• Full-power input to handle complex or high-demand loads

Which batteries and voltages will it work with?

This controller accepts a broad voltage range and multiple battery chemistries, making it suitable for mixed or evolving systems. It automatically configures to the detected battery voltage and includes lithium activation to restore low-activity cells.

• Compatible voltages: 12V, 24V, 36V, 48V, 60V, 72V, 84V, 96V
• PV max power per battery voltage: 12V–1440W up to 96V–11520W
• Supported chemistries: GEL, sealed lead-acid, LiFePO4, Li‑ion
• Lithium battery activation routine to recover dormant cells

What protections and safety features are included?

The controller integrates multiple protective measures to safeguard batteries and connected equipment. These protections reduce risk in harsh electrical conditions and help preserve component life.

• Overcharge and overcurrent protection to prevent damage
• Overheat and short-circuit detection with safe shutdown
• Stable current delivery under full-power input for demanding loads
• Labelled A–B wiring for RS485 communications; contact support for MODBUS specifics

How can I monitor or integrate this controller into my system?

The unit offers an RJ12 RS485 interface for data exchange with displays, dataloggers or building automation. Follow the labelled A‑B wiring and consult seller support if printed markings differ or if you need proprietary MODBUS commands.

• RJ12 port enables RS485 communication and remote monitoring
• Labelled A-B wiring; double-check wiring orientation before power-up
• Contact EARNMee for MODBUS command sets and technical support
• Package includes user manual for installation and wiring guidance

Who is this for? Professionals and experienced DIY solar integrators who run medium-to-large off-grid or backup power installations will benefit most from the EARNMee 120A MPPT controller. It’s ideal where high PV input voltages, large battery banks (12–96V), multi-chemistry compatibility and reliable protections are required. If you need robust MPPT performance, remote data access and a controller that can scale with system growth, this model offers the power and flexibility to serve cabins, workshops, telecom shelters, EV chargers or other heavy-duty solar applications.

Package contents: 1 × MPPT solar charge controller, 1 × User manual. EARNMee provides pre-shipment quality checks and 24/7 technical support via email for installation and troubleshooting assistance.