# Stationary UPS battery Ritar RT12280 12V 28Ah AGM ![Stationary UPS battery Ritar RT12280 12V 28Ah AGM](https://baterias.com/713-home_default/battery-ritar-rt12280-12v-28ah-rt-agm.jpg) > Ritar RT12280 stationary UPS battery 12V 28Ah AGM. RT range. Dimensions 166×175×125 mm. Long float life for UPS, alarms and standby equipment. **Category:** [Batteries for UPS / UPS](https://baterias.com/gb/batteries-for-sai-ups) → [RITAR](https://baterias.com/gb/ritar) - **Canonical URL**: https://baterias.com/gb/battery-ritar-rt12280-12v-28ah-rt-agm - **Language**: en-GB - **Brand**: RITAR - **Reference**: BCOM-RITAR-RT12280 - **MPN**: RT12280 - **Price**: 94,40 € (VAT incl., Spain) - **Last updated**: 2026-10-28 - **Stock**: In stock ## Technical specifications | Feature | Value | |---|---| | Brand | RITAR | | Reference | RT12280 | | Model | RITAR RT | | Voltage (V) | 12 V | | Largo | 166 mm | | Ancho | 175 mm | | Alto | 125 mm | | Tecnología | AGM | | Terminal type | F3 (M5) | | Capacity (C20) | 28 Ah (c20) | ## Quick description **Ritar RT12280 12V 28Ah** is a stationary battery for backup power systems: UPS, alarms, telecom and emergency lighting. Long float-life under permanent charge and instant response to mains outages with no noticeable voltage drop. ## Why this stationary battery? - **Instant response** when the mains drop, no voltage dip - **Long life under 24/7 charge** optimised for permanent service - **Compatible with your system** existing UPS units and alarm control panels 🔌 Voltage 12 V ⚡ Capacity 28 Ah C20 📏 Dimensions 166×175×125 mm ⚙️ Technology AGM ⚖️ Weight 8,1 kg 🏷️ Model RITAR RT ## Description ## Stationary battery Ritar RT12280 RT 28Ah 12V 12*V* Voltage 28*Ah* Capacity 8.10*kg* Weight The **12 V**, **28 Ah** **Ritar RT12280** stationary battery from the **RT** range with AGM technology is designed for UPS, alarms, telecoms and emergency lighting. It measures 166 × 175 × 125 mm, the format sought by anyone replacing a 28 Ah battery in UPS, alarm and emergency systems. - Long float life under permanent charge. - AGM technology: absorbed electrolyte, no spills, can be mounted at an angle. - Maintenance-free for its whole service life. - Sealed and gas-free: suitable for cabinets and offices. ### What the Ritar RT12280 is for Designed for UPS, alarms, telecoms and emergency lighting, the Ritar RT12280 is sealed, gas-free and suitable for technical cabinets and offices. Check that it matches your current battery in dimensions, terminals and hold-down: this reference has a weight of 8.10 kg and F3 (M5) terminals. ### Size, terminals and hold-down of the Ritar RT12280 In terms of format, the Ritar RT12280 measures 166 × 175 × 125 mm (length × width × height) and weighs 8.10 kg. It uses F3 (M5) terminals, the system that anchors and connects it in the vehicle. For a direct replacement, the current battery tray must accept these dimensions and the same terminal layout; otherwise adapters will be needed or the hold-down will change. ### The Ritar RT12280: RT range and AGM technology The **RT** is the Ritar range the RT12280 belongs to: it shares the same construction and quality criteria with the rest of the series, and varies in capacity and format to suit each vehicle. In an AGM battery the electrolyte is absorbed in glass-fibre separators: there is no free liquid, it cannot spill and it can be mounted at an angle. That construction lowers internal resistance, speeds up recharging and multiplies cycle life compared with a conventional battery. ### Why choose Ritar batteries With more than twenty years making sealed lead batteries, Ritar offers general-purpose, long-life, high-rate and front-terminal ranges for every stationary application. All the Ritar batteries in our catalogue are genuine product, recently manufactured and covered by the manufacturer's warranty. ### Warranty and coverage The Ritar RT12280 comes with the **manufacturer's official warranty** against manufacturing defects. If it fails through a defect within the warranty period, we replace it at no cost to you. ### Usage and maintenance tips Check the float voltage of the UPS or charger: a voltage that is too high shortens the life of a sealed battery. Replace all the batteries in the set at once and avoid environments continuously above 25 °C. ### When you get it and how to return it Orders placed **before 6:00 pm** with the battery in stock ship the same day. Delivery in mainland Spain and Portugal takes 24-48 working hours; for the Balearic Islands and the rest of the European Union allow 3 to 5 working days. You have **14 days** to return an unused battery; in mainland Spain and Portugal collection is free. We email you the tracking number as soon as the parcel ships. ## Frequently asked questions ### Is the Ritar RT12280 an AGM battery and what are the benefits of AGM? Yes. The RT12280 from Ritar uses AGM (Absorbent Glass Mat) technology: a sealed lead-acid battery where the electrolyte is absorbed in a glass-fibre mat. It withstands more charge/discharge cycles than a conventional one, handles heat better and is the required technology for devices with advanced Start-Stop and regenerative braking. Expected lifespan: 5-8 years under normal conditions. ### What are the measurements of the RT12280 model? Dimensions (length × width × height) are 166×175×125 mm — also written as 166x175x125 mm — following the European DIN standard. Always measure the space in your device before buying: even one extra millimetre can prevent the hold-down clamp from closing. The height shown includes the terminals. ## Equivalent batteries - [RITAR RT12260](https://baterias.com/gb/battery-ritar-rt12260-12v-26ah-rt-agm) - [Q-battery BATTERY-12LS-26](https://baterias.com/gb/battery-q-battery-12ls-26-12v-26ah) ## Technical team (editorial authorship) The FAQs, guides and comparisons on this site are reviewed by the baterias.com technical team — automotive battery specialists since 2012. → https://baterias.com/gb/technical-team --- *baterias.com — Automotive batteries · 2026-10-29*