Technical Specifications
| Parameter | Value |
|---|---|
| Product Model | 35AE92A (Order No. ER0002081060005) |
| Manufacturer | ABB |
| Product Type | Rechargeable Sealed Lead-Acid (SLA) Backup Battery |
| Series / Platform | Advant OCS, MasterPiece 200 (MP200), S800 I/O, AC31 |
| Nominal Voltage | 12 V DC |
| Nominal Capacity | 7.2 Ah (C20 rate, at 25°C) |
| Battery Chemistry | Sealed Lead-Acid, Valve-Regulated (VRLA) |
| Float Charging Voltage | 13.6 – 13.8 V DC |
| Equalizing Charging Voltage | 14.4 – 14.8 V DC |
| Maximum Charging Current | ≤ 0.7 A (0.1C) |
| Continuous Discharge Rate | 0.25C (1.75 A) |
| Cycle Life | ≥ 500 cycles (typical 1000 cycles @ 80% DOD) |
| Self-Discharge Rate | ≤ 3% / month at 25°C |
| Internal Resistance | ≤ 50 mΩ (fully charged) |
| Operating Temperature | -20°C to +60°C |
| Storage Temperature | -30°C to +60°C |
| Relative Humidity | 5% – 95% RH (non-condensing) |
| Terminal Type | Faston blade / screw terminal |
| Enclosure / Housing | ABS plastic, sealed valve-regulated |
| Protection Class | IP20 (for installation inside cabinet) |
| Dimensions (L×W×H) | 120 mm × 75 mm × 40 mm |
| Weight | Approx. 0.45 – 0.5 kg |
| Mounting Method | Vertical / horizontal in battery compartment or on bracket |
| Safety Standards | IEC 62133, UL 1642 |
| Lifecycle Status | Discontinued by ABB – available as original surplus spare |
Main Features and Advantages
The defining value of the 35AE92A ER0002081060005 lies in its laser-focused purpose: protecting volatile controller memory and the real-time clock during power loss. Unlike general-purpose batteries, this unit is electrically matched to ABB’s controller floating-charge architecture, delivering a steady 12 V output that keeps RAM contents, control logic, setpoints, and time stamps fully intact through outages lasting from minutes to several hours depending on system load. This single capability eliminates costly program reloading, clock re-synchronization, and production restart sequences.
Maintenance-free sealed construction is a second major advantage of the 35AE92A ER0002081060005. The valve-regulated lead-acid design is completely sealed, leak-proof, and requires zero electrolyte maintenance throughout its operational life. Technicians can install the 35AE92A ER0002081060005 and effectively forget about it until the next planned replacement cycle, reducing the total cost of ownership for aging DCS assets.
Wide-temperature resilience makes the 35AE92A ER0002081060005 well-suited to harsh industrial environments. With a validated operating range of -20°C to +60°C and storage tolerance down to -30°C, the battery delivers dependable performance in both cold outdoor installations and heat-intensive process areas. Its self-discharge rate of ≤ 3% per month at 25°C ensures the 35AE92A ER0002081060005 retains charge readiness even during seasonal plant idle periods.
Long service life and predictable aging give maintenance planners confidence. The delivers a minimum of 500 full cycles and typically reaches 1000 cycles at 80% depth of discharge, translating into a practical field life of 3 to 5 years under floating charge. This predictability enables proactive replacement scheduling during planned shutdowns, preventing unexpected “Memory Lost” failures that strike at the worst possible moment.
Faston terminal design simplifies field replacement of the . The blade-style connectors allow rapid swap-out without special tooling, minimizing panel-open time. For legacy MP200 and Advant OCS systems where the original battery is no longer manufactured by ABB, the represents a critical link in extending the useful life of control systems that the plant cannot yet justify replacing.
