# Stationary UPS battery Ritar HR12-104W 12V 26Ah AGM ![Stationary UPS battery Ritar HR12-104W 12V 26Ah AGM](https://baterias.com/781-home_default/battery-ritar-hr12-104w-12v-hr-agm.jpg) > Ritar HR12-104W stationary UPS battery 12V 26Ah AGM. HR range. Dimensions 166×175×125 mm. Long float life for UPS, alarms and standby equipment. **Category:** [Batteries for UPS / High Discharge UPS](https://baterias.com/gb/batteries-for-sai-ups-of-high-discharge) → [RITAR](https://baterias.com/gb/ritar) - **Canonical URL**: https://baterias.com/gb/battery-ritar-hr12-104w-12v-hr-agm - **Language**: en-GB - **Brand**: RITAR - **Reference**: BCOM-RITAR-HR12-104W - **MPN**: HR12-104W - **Price**: 139,10 € - **Stock**: Out of stock ## Technical specifications | Feature | Value | |---|---| | Brand | RITAR | | Reference | HR12-104 W | | Model | RITAR HR | | Voltage (V) | 12 V | | Largo | 166 mm | | Ancho | 175 mm | | Alto | 125 mm | | Tecnología | AGM | | Terminal type | F13(M5) | | Capacity (C20) | 26 Ah (c20) | ## Quick description **Ritar HR12-104W 12V 26Ah** 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 26 Ah C20 📏 Dimensions 166×175×125 mm ⚙️ Technology AGM ⚖️ Weight 8,6 kg 🏷️ Model RITAR HR ## Description ## Stationary battery Ritar HR12-104W HR 26Ah 12V 12*V* Voltage 26*Ah* Capacity 8.60*kg* Weight The **12 V**, **26 Ah** **Ritar HR12-104W** stationary battery from the **HR** range with AGM technology is designed for UPS, alarms, telecoms and emergency lighting. Its 166 × 175 × 125 mm make it the exact replacement for the 26 Ah battery fitted as standard to many UPS, alarm and emergency systems. - Instant response to mains failures. - AGM: faster recharging and better cycle resistance than a conventional battery. - Standard format for UPS and emergency systems. - Low self-discharge and high reliability. ### Dimensions, polarity and mounting The Ritar HR12-104W is made in the 166 × 175 × 125 mm format and weighs 8.60 kg. It uses F13(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. ### What the Ritar HR12-104W is for The Ritar HR12-104W is designed for UPS, alarms, telecoms and emergency lighting: it sits on float charge and responds instantly to a mains failure. Check that it matches your current battery in dimensions, terminals and hold-down: this reference has a weight of 8.60 kg and F13(M5) terminals. ### The Ritar HR12-104W: HR range and AGM technology The **HR** is the Ritar range the HR12-104W 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. AGM means the acid is held in a glass mat instead of floating free. That is why the battery can be installed in the cabin without gases, survives more cycles and recovers its charge quickly. ### Ritar: the maker behind the HR12-104W 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. At baterias.com we work directly with the manufacturer or its official distributor: real stock, brand-new product and official warranty. ### Warranty and coverage The Ritar HR12-104W 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. ### How to make it last longer Replace all the batteries in the set at once and avoid environments continuously above 25 °C. Charge with a charger that has an AGM mode: it limits the voltage and protects the glass-fibre separators. ### When you get it and how to return it Order **before 6:00 pm** with stock available and it leaves today: mainland Spain and Portugal receive it in 24-48 working hours, the islands and the rest of the EU in 3 to 5 days. You have **14 days** to return it if it has not been installed, with free collection on the mainland, and shipment tracking by email. ## Frequently asked questions ### Is this battery AGM? What is it for? Yes. The HR12-104W 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 HR12-104W 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 our blog. 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. ### What is the service life of the HR12-104W model? Expected lifespan of the Ritar HR12-104W 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 measurements of the HR12-104W 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. ### Which batteries are equivalent to the Ritar HR12-104W? 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 HR12-96W](https://baterias.com/gb/battery-ritar-hr12-96w-12v-24ah) ## 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 · 2026-10-23*