EnerSys Cyclon 0850-0004 2V 8.5Ah Sealed Lead Acid Monobloc – Long-Life Backup Battery
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Pure‑Lead AGM E‑Cell Design (2 V, 8.0 Ah) — Utilizes high-purity spiral-wound pure‑lead plates for superior power density, deep-discharge recovery, and rapid recharge performance.
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Exceptional Longevity — Offers up to 300 deep discharge cycles and a float design life of up to 15 years at 20 °C—far exceeding traditional SLA batteries.
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Ultra-Robust & Safe Construction — Housed in a steel-cased envelope with a 50 PSI resealable safety vent, UL‑recognized components, and maintenance-free AGM design that allows leak-proof use in any orientation.
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Operates in Extreme Temperature Ranges — Engineered to perform reliably from –65 °C to +80 °C, making it ideal for industrial, aerospace, and outdoor applications.
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Ideal for Critical Backup and Modular Pack Configurations — Commonly used in UPS units, telecom backup systems, emergency lighting, custom battery packs, and harsh-environment power systems demanding high-cycle reliability and minimal maintenance.
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EnerSys Cyclon 0850-0004 2V 8.5Ah Sealed Lead Acid Monobloc – Long-Life Backup Battery
The EnerSys Cyclon 0850‑0004 E‑Cell boasts a compact cylindrical profile (1.75″ diameter × 3.94″ height) crafted with 99.99% pure-lead spiral-wound plates housed in a rugged steel can and AGM (Absorbed Glass Mat) separator, delivering excellent power density, fast recharge, and reliable performance across orientations. It offers up to 300 full depth-of-discharge cycles and an impressive design float life of up to 15 years at 20 °C, far outperforming conventional SLA cells. Additional spec highlights include a low internal resistance (~3 mΩ), high-rate discharge capability, minimal self-discharge, and spill-free operation, making it ultra-reliable in critical applications.
Engineered for extreme operating conditions, the 0850‑0004 performs consistently across a vast temperature range of –65 °C to +80 °C, thanks to its rugged construction and high-pressure resealable vent design. The metal casing provides excellent shock, vibration, and temperature tolerance, allowing deployment in telecom systems, UPS modules, aerospace systems, outdoor solar power setups, and other critical backup environments. By delivering dependable, long-term backup power with minimal maintenance, the 0850-0004 significantly reduces lifecycle costs and system downtime.
Specifications
- Manufacturer Part Number: 0850-0004
- Cell Size: E
- Voltage: 2
- Capacity (10hr. rate 25°C to 1.67Vpc): 8.0Ah
- Internal res. of fully charged cell mΩ @ 25°C: 3.0
- Nominal short circuit current for charged cell: 665A
- Construction: Metal outer case & spiral construction
- Design: 3 atm venting pressure
- Diameter: 1.75in (44.5mm)
- Height: 3.94in (100.1mm)
- Height with terminals: 4.28in (108.7mm)
- Weight: 17.28oz (489.9g)
- Termination: Tabs: 0.250x0.025in (6.35x0.64mm)
- Operating Temperature: -65°C to 80°C (-85°F to 176°F)
EnerSys "pure lead" batteries applications:
- Telecommunications
- Electronics
- Uninterruptible Power Supplies
- Defense installations
- Aviation
- Computer back-up
- Electric vehicles
- Medical equipment
- Solar power
- Lawn and garden equipment
- Extreme temperature environments (-65°C to +80°C or -85°F to + 176°F) for single cells
| Diameter | 1.75 |
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| Height | 3.94 |
| Condition | New |
| Country of Manufacture | Malaysia. Country of origin is subject to change |
| Brand | EnerSys |
| Chemistry | AGM |
| Output Voltage | 2 |
| Amperage | 8 |
| Rechargeable | Yes |
