Charge controller Epee Tracer 8420AN 80A MPPT — solar regulator 80 A

Epee Tracer 8420AN 80A MPPT is a solar charge controller engineered for stand-alone photovoltaic systems and mobile installations. It manages charging of 12V/24V/36V/48V battery banks with a maximum continuous charge current of 80 A, using maximum power point tracking (MPPT) to extract optimal power from PV arrays. The regulator supports efficient charging, protective functions against overcharging and reverse polarity, and is suitable for off-grid cabins, recreational vehicles and small commercial solar systems where consistent battery management is required.

Advantages

The MPPT algorithm increases energy harvest from the solar array compared with conventional PWM controllers, improving charging efficiency especially in variable irradiance conditions. Built-in protections help prevent battery damage by controlling charge stages and limiting current, while wide input voltage compatibility allows flexible PV array configurations. Compact design and straightforward electrical connections make installation and maintenance practical for both installers and end users.

Suitable for

• Off-grid solar systems for homes and cabins
• Recreational vehicles (RVs) and boats
• Small commercial and agricultural installations
• Battery-backed telecom or monitoring sites

Key specifications

• Maximum charging current: 80 A continuous
• Supported battery nominal voltages: 12 V / 24 V / 36 V / 48 V (auto-detect or selectable)
• MPPT tracking for improved PV power conversion
• Multiple charge stages: bulk, absorption, float (programmable profiles)
• Protection features: overcharge, overcurrent, reverse polarity, short circuit and overtemperature protection
• Input: compatible with typical PV array voltages for off-grid systems
• User interface: status indicators and adjustable parameters for charging behavior

How to use

Install the controller in a dry, ventilated location close to the battery bank and away from direct sunlight and heat sources. Connect the battery first, followed by the PV array, observing correct polarity on all terminals. Select or confirm the nominal battery voltage and charging profile according to the battery chemistry and manufacturer recommendations. Monitor status indicators during initial operation to confirm proper PV input and charging activity. Periodically inspect wiring connections and cooling vents to ensure reliable operation.

Recommendations

For optimal performance, match PV array voltage to the controller’s input range and size the solar array and battery capacity to the expected daily energy use. Use appropriate cable sizes and secure connections to minimise voltage drop and heat. Configure charge parameters to suit the battery type (lead‑acid, AGM, gel, or lithium if supported) and follow battery manufacturer instructions for temperature compensation and maintenance charging.