Everstart 6811a Smart Charger Manual 2021 [top] 🎁 Editor's Choice
Since physical manuals are often lost or printed in tiny, unclear text, this article compiles all essential functions, safety protocols, troubleshooting steps, and charging modes based on the 2021 manufacturing specifications for this specific model.
10. Technical Specifications (2021 Revision)
| Specification | Detail |
| :--- | :--- |
| Input Voltage | 120V AC, 60Hz, 1.2A |
| Output Voltage | 12V DC only |
| Output Current | 6A max (constant current bulk) |
| Minimum Start Voltage | 3.0V (charger will not activate below this) |
| Back Drain | <5mA (safe for long-term storage) |
| Operating Temp | 32°F (0°C) to 104°F (40°C) |
| Battery Capacity Range | 10Ah – 120Ah (optimal for 20Ah – 80Ah) |
| Float Voltage | 13.2V – 13.4V (temperature compensated) |
| Housing Material | ABS plastic, UL94 V-0 flame retardant |
| Cable Length | 6 ft DC (clamps), 5 ft AC |
| Certifications | UL Listed (2021), cUL, Energy Star (standby mode) | everstart 6811a smart charger manual 2021
Controls & Indicators
- Power LED: Shows mains power connected.
- Charge LED (charging): Solid/flashing while charging (bulk/absorption).
- Full/Float LED: Indicates battery is fully charged and charger is in maintenance mode.
- Fault/Reverse LED: Illuminates for reverse polarity, battery missing, or severe fault.
- Mode switch (if present): Select between Normal/AGM/Repair or different amp settings.
5. Maintain Mode (Float)
- Automatic: After reaching 100%, the charger automatically switches to Float mode. Do not unplug it. You can leave the 6811a connected for months.
Key Features:
- Fully Automatic: Microprocessor control monitors battery status and adjusts charge rate accordingly. Prevents overcharging.
- Multi-Stage Charging: Includes desulfation, bulk charge, absorption, and float modes.
- Battery Recondition: A mode designed to repair sulfated or deeply discharged batteries.
- Safety Protection: Reverse polarity protection, short circuit protection, and spark-proof technology.