Product Overview
The ABB 35AE92A (complete spare part number ER0002081060005) is a high-performance rechargeable backup battery designed specifically for critical data retention in ABB industrial automation systems. As an integral component within ABB’s Advant OCS, S800 I/O, MasterPiece 200, and Advant Controller 31 platforms, the ABB 35AE92A provides essential power to maintain controller RAM contents and real-time clock operation during main power interruptions, preventing the catastrophic loss of program logic, critical parameters, and process setpoints that could otherwise result in extended production downtime. This 12V, 7.2Ah sealed lead-acid (SLA) battery operates as a float-charge unit, remaining on standby while the system runs normally and instantly taking over the power supply when the primary source fails.
The ABB 35AE92A (ER0002081060005) is engineered with ABS plastic housing and Faston quick-connect terminals, facilitating rapid field replacement without specialized tools. Its wide operating temperature range of -20°C to +60°C ensures reliable performance in non-conditioned electrical rooms and outdoor cabinets where temperature fluctuations are common. With a cycle life of approximately 1000 cycles at 80% depth of discharge and a typical service life of 3 to 5 years under standard conditions, the ABB 35AE92A represents a critical preventive maintenance component for facilities operating legacy ABB control systems. It is important to note that the 35AE92A is a data retention battery rather than a power supply for field devices—its sole purpose is safeguarding controller memory integrity, making it indispensable for continuous process industries such as chemical processing, power generation, and oil and gas production.
Technical Specifications
| Parameter Name | Value |
|---|---|
| Product Model | ABB 35AE92A (ER0002081060005) |
| Manufacturer | ABB |
| Product Type | Rechargeable Data Buffer Battery (Sealed Lead-Acid) |
| Nominal Voltage | 12V DC |
| Nominal Capacity | 7.2 Ah (C20) / 7 Ah |
| Battery Chemistry | Sealed Lead-Acid (SLA), Valve-Regulated |
| Terminal Type | Faston Quick-Connect Tabs (Spade Connectors) |
| Charging Method | Float Charging (Trickle, by controller internal circuit) |
| Charge Rate | 0.2 C (typical, ~10 hours to full charge) |
| Discharge Rate | 0.1 C / Continuous 0.25C |
| Cycle Life | Minimum 500 cycles, Typical 1000 cycles @ 80% DOD |
| Operating Temperature | -20°C to +60°C |
| Dimensions (L x W x H) | 120 mm x 75 mm x 40 mm (approx.) |
| Weight | Approx. 0.45 kg |
| Housing Material | ABS Plastic (Leak-Proof Design) |
| Applicable Systems | ABB Advant OCS, S800 I/O, MasterPiece 200, Advant Controller 31 |
| Country of Origin | Sweden (varies by batch) |
Main Features and Advantages
Critical Data Retention for ABB Control Systems
The ABB 35AE92A serves as the essential safeguard for program and parameter integrity in ABB DCS and PLC systems. When main power is interrupted, the ABB 35AE92A instantly supplies backup power to the controller’s volatile RAM and real-time clock, preserving the entire control strategy—including complex ladder logic, function block configurations, process setpoints, and historical data trends that would otherwise be permanently lost upon power restoration. This capability is particularly vital for continuous process industries where reprogramming a controller after a power loss can take hours or even days, representing significant production loss and startup risk. The ABB 35AE92A (ER0002081060005) is configured for float-charge operation, meaning it remains at full capacity while the system runs and automatically transitions to discharge mode when needed, ensuring seamless protection without operator intervention.
Wide-Temperature Resilience and Rugged Construction
Engineered for the demanding conditions of industrial electrical rooms, the ABB 35AE92A operates reliably across a temperature range of -20°C to +60°C, making it suitable for facilities without climate-controlled cabinets or for installations in outdoor enclosures. The ABS plastic housing provides leak-proof containment, protecting adjacent electronics from corrosive electrolyte in the event of seal failure, while the Faston quick-connect terminals enable rapid, tool-free replacement—a practical advantage for maintenance teams performing preventive battery swaps during scheduled outages. The ABB 35AE92A offers an exceptional cycle life of up to 1000 cycles at 80% depth of discharge, significantly reducing the frequency of replacement compared to lower-grade industrial batteries.
Preventive Maintenance Optimization and Compatibility Assurance
With a typical service life of 3 to 5 years, the ABB 35AE92A enables maintenance departments to implement predictable battery replacement schedules, minimizing the risk of unplanned controller data loss caused by battery aging. The ABB 35AE92A is specifically matched to the charging characteristics of ABB Advant OCS, S800 I/O, MasterPiece 200, and Advant Controller 31 systems, ensuring correct float voltage and charge current management by the controller’s internal charging circuit. This compatibility eliminates the guesswork involved in selecting third-party replacements and reduces the risk of overcharging, undercharging, or terminal mismatch that could damage the controller or render the battery ineffective.
