# Stationary Batteries > Stationary batteries for UPS, telecom and substations: OPzS flooded tubular, OPzV gel and industrial AGM. 10-25 year life. Q-battery, Cyclon, Ritar. **Category:** [Start](https://baterias.com/gb/beginning) → [Batteries](https://baterias.com/gb/batteries) - **Canonical URL**: https://baterias.com/gb/stationary-batteries - **Language**: en-GB ## Description **Stationary batteries** are built for systems that demand a very long service life (10-25 years) working in float: telecoms, remote control, electrical substations, industrial alarms, control instrumentation and **high-power UPS/standby** systems in data centres and hospitals. Three technologies cover different needs: **OPzS** (flooded tubular lead-acid, 20-25 years), **OPzV** (sealed gel tubular, 18-22 years) and **sealed industrial AGM** standby (10-12 years). All optimised for slow, deep discharge with minimal self-discharge — the reference standby battery for UPS and telecom backup. ## OPzS vs OPzV vs stationary AGM: which to choose **OPzS** is the gold-standard stationary battery: thick tubular plates, liquid electrolyte, transparent cells with a level gauge. 20-25 year life at 20 °C, needing water top-ups every 1-3 years. **OPzV** is the sealed gel version — maintenance-free, 18-22 year life, ideal for unventilated technical rooms. **Industrial AGM** is the entry point to the stationary range: 10-12 year life, sealed, mountable in any orientation, the most common standby battery for lower-power UPS. ### Typical stationary battery applications - **Telecoms and phone masts** — hours of backup during a mains outage. - **Electrical substations and remote control** — breaker start-up and SCADA systems. - **UPS for data centres and hospitals** — highly reliable standby backup with low self-discharge. - **Industrial alarms and instrumentation** for continuous process control. ### How to choose between OPzS, OPzV and AGM It depends on whether the installation allows periodic maintenance — OPzS then gives the longest life at the lowest cost per year — or needs to be sealed and maintenance-free — OPzV or industrial AGM. Space also matters: OPzV and AGM can go in rooms without forced ventilation thanks to their very low gas emission. ### Leading stationary battery brands - Q-battery - Cyclon - [Ritar RT/HR](/gb/batteries-ritar) ## Frequently asked questions about stationary batteries ### **How long does an OPzS stationary battery last?** 20 to 25 years at 20 °C in float, provided the electrolyte level is maintained and ambient temperature stays stable. ### **What's the difference between OPzS and OPzV?** OPzS uses liquid electrolyte and needs maintenance (water top-ups); OPzV uses sealed gel, needs no maintenance but has a somewhat shorter life (18-22 years). ### **Is a stationary battery compatible with any UPS or remote-control installation?** Yes, as long as the cell-bank voltage and the minimum capacity (Ah) required by the equipment are respected; the 2V cell format is an industry standard. ### **Why choose industrial AGM over OPzS?** Because it's sealed, needs no maintenance and mounts in any orientation, though its service life (10-12 years) is shorter than a well-maintained OPzS. Catalogue curated by our technical team. **11,009 Trustpilot reviews · 4.5/5**. 24h mainland delivery, free 14-day returns. ## Products in this category | Product | Brand | Price | |---|---|---| | [Genesis G16EP stationary UPS battery 12V 16Ah AGM](https://baterias.com/gb/battery-genesis-g16ep-12v-16ah) | GENESIS | 134,61 € | | [12V 7A AGM battery](https://baterias.com/gb/battery-12v-7ah-agm) | KRONOBAT | 18,92 € | | [Stationary UPS battery Ritar RT1270 12V 7Ah AGM](https://baterias.com/gb/battery-ritar-rt1270-12v-7ah) | RITAR | 33,47 € | | [Stationary UPS battery Ritar RT1245 12V 4.5Ah AGM](https://baterias.com/gb/battery-ritar-rt1245-12v-4-5ah-rt-agm) | RITAR | 30,65 € | | [Stationary UPS battery Ritar RT670 6V 7Ah AGM](https://baterias.com/gb/battery-ritar-rt670-6v-7ah-rt-agm) | RITAR | 20,96 € | | [Stationary UPS battery Ritar RT1272 12V 7.2Ah AGM](https://baterias.com/gb/battery-ritar-rt1272-12v-7-2ah-rt-agm) | RITAR | 37,11 € | | [Stationary UPS battery Ritar RT1223 12V 2.3Ah AGM](https://baterias.com/gb/battery-ritar-rt1223-12v-2-3ah-rt-agm) | RITAR | 35,00 € | | [Stationary UPS battery Ritar RT12280S 12V 28Ah AGM](https://baterias.com/gb/battery-ritar-rt12280s-12v-28ah) | RITAR | 96,82 € | | [Stationary UPS battery Ritar RT12120 12V 12Ah AGM](https://baterias.com/gb/battery-ritar-rt12120-12v-12ah-rt-agm) | RITAR | 65,49 € | | [Genesis G13EP stationary UPS battery 12V 13Ah AGM](https://baterias.com/gb/battery-genesis-g13ep-12v-13ah) | GENESIS | 168,87 € | | [Stationary UPS battery Ritar RT1250 12V 5Ah AGM](https://baterias.com/gb/battery-ritar-rt1250-12v-5ah) | RITAR | 38,93 € | | [Stationary UPS battery Ritar RT1290 12V 9Ah AGM](https://baterias.com/gb/battery-ritar-rt1290-12v-9ah-rt-agm) | RITAR | 44,62 € | | [Stationary UPS battery Ritar RT1213 12V 1.3Ah AGM](https://baterias.com/gb/battery-ritar-rt1213-12v-1-3ah-rt-agm) | RITAR | 24,31 € | | [Stationary UPS battery Ritar RT1232 12V 3.2Ah AGM](https://baterias.com/gb/battery-ritar-rt1232-12v-3-2ah-rt-agm) | RITAR | 35,57 € | | [Stationary UPS battery Ritar RT12180 12V 18Ah AGM](https://baterias.com/gb/battery-ritar-rt12180-12v-18ah-rt-agm) | RITAR | 63,36 € | ## Technical team (editorial authorship) The FAQs, guides and comparisons on this site are reviewed by the baterias.com technical team — over 25 years of experience validating automotive batteries. → https://baterias.com/gb/technical-team --- *baterias.com — Automotive batteries · 2026-08-07*