Description
OutBack Power EnergyCell® 6 V 525 Ah Group L16 Flooded Deep-Cycle Battery
Overview
The OutBack EnergyCell® 6 V 525 Ah (Group L16) is a rugged flooded (FLA) deep-cycle battery engineered for renewable energy and off-grid applications. It features thick plates for long cycle life, added electrolyte headspace to extend watering intervals, and seamless compatibility with OutBack system components for dependable storage in demanding sites.
Key Features
- 525 Ah @ C/20 (6 V nominal); 445 Ah @ 24-hour rate
- Up to 1550 cycles @ 50% DoD (typical)
- Built-in PROeye™ electrolyte level indicator (525FLA)
- Absorb/Float/Equalize voltages published for precise charging
- Heavy-duty internal connectors; stainless terminal hardware
Applications
- Off-grid solar/wind storage banks (build to 12/24/48 V)
- Remote industrial, telecom, and control systems
- Backup power for critical residential/light-commercial loads
Technical Specifications
| Model | EnergyCell 525FLA (Group L16) |
|---|---|
| Nominal Voltage | 6 V DC (3 cells) |
| Rated Capacity (C/20) | 525 Ah |
| Capacity @ 24 h Rate | 445 Ah (to 1.75 V/cell at 20 °C) |
| Cycle Life (50% DoD) | Up to 1550 cycles (typ.) |
| Absorb Voltage (25 °C) | 7.26 V |
| Float Voltage (25 °C) | 6.75 V |
| Equalize Voltage | 7.74 V |
| Temp-Comp (Charging) | ±3 mV / °C / cell |
| Max Charger Current (per battery) | 100 A |
| Operating Temp (with compensation) | −40 to 120 °F (−4 to 49 °C) |
| Optimal Operating Temp | 40 to 80 °F (4 to 27 °C) |
| Self-Discharge @ 80 °F | ≈ 3.5 % per week (fully charged) |
| Terminal Hardware Torque | 100–120 in-lb (11–14 N·m), stainless thread |
| Dimensions (H × W × D) | 16.13″ × 7.19″ × 12.38″ (41.0 × 18.3 × 31.4 cm) |
| Weight | 122 lb (55.3 kg) |
| Special Features | PROeye™ electrolyte level indicator; bayonet vent caps |
| Technology | Flooded lead-acid (deep-cycle), top terminal |
Design & Construction
Robust deep-cycle plates and heavy-duty interconnects support repeated cycling and high surge loads. The case provides generous electrolyte headspace and bayonet caps for easier maintenance. Stainless hardware and top-terminal layout simplify installation and service.
Operation & Maintenance
Follow OutBack’s absorb/float/equalize set-points and temperature compensation for optimum life. Equalize about every 30 days (or every 14 days when regularly cycling below 50% SoC). Maintain electrolyte above plates and avoid extended storage at low state of charge.
Warranty Information
Specs & Manuals
OutBack EnergyCell® 6 V 525 Ah Flooded Deep-Cycle Battery (Group L16): |
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EnergyCell FLA Owner's Manual: |
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EnergyCell FLA Warranty Policy: |
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EnergyCell FLA Safety Data Sheet: |
