AJC Replacement for OPTI-UPS ES1000 / 1000ES — 12V 12Ah AGM UPS Battery (F2)

Overview: AJC® replacement battery engineered as a direct fit for OPTI-UPS ES1000 and 1000ES UPS units. This sealed lead acid (AGM) battery provides reliable backup power with OEM-compatible dimensions and terminals. Key Specifications: - Voltage: 12V (12 Volts) - Capacity: 12Ah - Chemistry: Sealed Lead Acid (AGM) - Terminals: F2 - Number of batteries required for full replacement: 2 - Length: 5.94 in - Width: 3.9 in - Height: 3.78 in - Weight: 8.3 lbs Why choose AJC® replacements: AJC batteries offer an affordable, high-quality substitute for thousands of devices and are manufactured to match OEM fit and form. Millions of AJC batteries have been sold worldwide. The cells are a UL recognized component and come with an easy 30-day return policy plus a 12-month warranty for added confidence. Important Notice: Our products are not affiliated with or authorized by OPTI-UPS. SLA Battery Care Recommendations: - Recharge the battery after each use to maintain performance. - Avoid fully discharging the battery. - Inspect terminals periodically for corrosion or other signs of wear that could lead to failure. - Store the battery fully charged. - Keep stored batteries in a cool, dry place (68°F/20°C). - Recycle batteries properly; do not dispose of them in household waste.