# Stationary UPS battery Ritar RT1250 12V 5Ah AGM ![Stationary UPS battery Ritar RT1250 12V 5Ah AGM](https://baterias.com/708-home_default/battery-ritar-rt1250-12v-5ah.jpg) > Ritar RT1250 stationary UPS battery 12V 5Ah AGM. RT range. Dimensions 90×70×107 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-rt1250-12v-5ah - **Language**: en-GB - **Brand**: RITAR - **Reference**: BCOM-RITAR-RT1250 - **MPN**: RT1250 - **Price**: 39,60 € - **Stock**: In stock ## Technical specifications | Feature | Value | |---|---| | Brand | RITAR | | Reference | RT1250 | | Model | RITAR RT | | Voltage (V) | 12 V | | Largo | 90 mm | | Ancho | 70 mm | | Alto | 107 mm | | Tecnología | AGM | | Terminal type | F1/F2 | | Capacity (C20) | 5 Ah (c20) | ## Quick description **Ritar RT1250 12V 5Ah** 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 5 Ah C20 📏 Dimensions 90×70×107 mm ⚙️ Technology AGM ⚖️ Weight 1,35 kg 🏷️ Model RITAR RT ## Description ## Stationary battery Ritar RT1250 RT 5Ah 12V 12*V* Voltage 5*Ah* Capacity 1.35*kg* Weight Designed for UPS, alarms, telecoms and emergency lighting, the **Ritar RT1250** from the **RT** range offers **5 Ah** with AGM technology on permanent float charge. It replaces the original battery without adaptation in UPS, alarm and emergency systems with a 90 × 70 × 107 mm format: same 5 Ah capacity. - AGM technology: absorbed electrolyte, no spills, can be mounted at an angle. - Long float life under permanent charge. - Sealed and gas-free: suitable for cabinets and offices. - Maintenance-free for its whole service life. ### What the Ritar RT1250 is for With 5 Ah, the Ritar RT1250 gives your UPS or emergency system the autonomy it needs. Replace all the batteries in the set at once. Check that it matches your current battery in dimensions, terminals and hold-down: this reference has a weight of 1.35 kg and F1/F2 terminals. ### The Ritar RT1250: RT range and AGM technology The RT1250 is part of the Ritar **RT** range. Choosing the right reference within the series comes down to capacity, dimensions and terminals: technology and quality are common to the whole family. 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. ### Dimensions, polarity and mounting In terms of format, the Ritar RT1250 measures 90 × 70 × 107 mm (length × width × height) and weighs 1.35 kg. It uses F1/F2 terminals, the system that anchors and connects it in the vehicle. Before replacing it, measure your current battery tray: if all three dimensions and the terminal positions match, the swap is direct and needs no adapters. ### Ritar: the maker behind the RT1250 Ritar is one of the world's largest VRLA battery manufacturers. Its RA, RT, RL, HR and FT series equip UPS, telecoms and solar systems worldwide with very consistent quality. All the Ritar batteries in our catalogue are genuine product, recently manufactured and covered by the manufacturer's warranty. ### How to make it last longer Charge with a charger that has an AGM mode: it limits the voltage and protects the glass-fibre separators. Replace all the batteries in the set at once and avoid environments continuously above 25 °C. ### Warranty and coverage The Ritar RT1250 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. ### Delivery times and returns Same-day dispatch from our warehouse for in-stock orders placed **before [[ks:cutoff]]**: 24-48 working hours in mainland Spain and Portugal, 3 to 5 days in the islands and the rest of Europe. Returns are accepted for **[[ks:return_days]] days** if the battery has not been used (free collection on the Iberian mainland). You will receive tracking by email. ## Frequently asked questions ### Is the RT1250 model AGM? What does this technology offer? Yes. The RT1250 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. ### How do I fit the RT1250 model in my device? In most devices it fits in 15-30 minutes with a 10 mm wrench; if the battery is under the seat or in the boot the time can double. See the step-by-step guide on this page. Quick summary: 1) switch off the engine and remove the key; 2) locate the original battery (engine bay, boot or under seat); 3) disconnect the negative (−) terminal first, then the positive (+); 4) loosen the hold-down clamp and remove the old battery; 5) fit the new one in the same orientation — match the polarity shown on the product sheet; 6) connect the positive (+) first, then the negative (−). On devices with Start-Stop or BMS, register the battery via OBD so the alternator applies the correct charging profile. ### How long does the Ritar RT1250 battery last? Expected lifespan of the Ritar RT1250 is 5 to 8 years in mild-climate device use with Start-Stop. In cold regions it drops slightly due to cold-start stress; in very hot regions it also drops because of electrolyte evaporation. To extend its life: avoid deep discharges (headlights on with engine off), have the alternator checked yearly, and keep the battery clean and properly secured. ### What are the dimensions of the Ritar RT1250 battery? Dimensions (length × width × height) are 90×70×107 mm — also written as 90x70x107 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. ### Which batteries are equivalent to the Ritar RT1250? Directly interchangeable batteries (same dimensions, same polarity, same Ah and CCA) are the OEM equivalents from leading brands: Bosch, Tudor, Exide and, depending on the model, Banner or Yuasa. Exact equivalence depends on technology — an EFB cannot be replaced with a conventional battery in Start-Stop devices. See the "Equivalents" section to view recommended options at the same performance level. ## Equivalent batteries - [RITAR RT1245](https://baterias.com/gb/battery-ritar-rt1245-12v-4-5ah-rt-agm) ## Reviews - **Average rating**: 4.75 / 5 (31 reviews) ## 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 · 2026-10-04*