# Stationary UPS battery Q-battery 12LS-18 12V 18Ah AGM ![Stationary UPS battery Q-battery 12LS-18 12V 18Ah AGM](https://baterias.com/1507-home_default/battery-q-battery-12ls-18-12v-18ah.jpg) > Q-battery 12LS-18 stationary UPS battery 12V 18Ah AGM. AGM STANDARD range. Dimensions 181×77×167 mm. Long float life for UPS, alarms and standby equipment. **Category:** [Batteries for UPS / UPS](https://baterias.com/gb/batteries-for-sai-ups) → [Q-battery](https://baterias.com/gb/q-battery) - **Canonical URL**: https://baterias.com/gb/battery-q-battery-12ls-18-12v-18ah - **Language**: en-GB - **Brand**: Q-battery - **Reference**: BCOM-Q-BATTERY-12LS-18 - **MPN**: 12LS-18 - **Price**: 72,80 € (VAT incl., Spain) - **Last updated**: 2026-10-28 - **Stock**: Out of stock ## Technical specifications | Feature | Value | |---|---| | Brand | Q-Battery | | Reference | 12 LS-18 | | Model | AGM STANDARD | | Voltage (V) | 12 V | | Largo | 181 mm | | Ancho | 77 mm | | Alto | 167 mm | | Peso | 5.7 kg | | Tecnología | AGM | | Terminal type | F3 (flag) | | Hold down | G112074 | | Capacity (C20) | 18 Ah (c20) | ## Quick description **Q-battery 12LS-18 12V 18Ah** 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 18 Ah C20 📏 Dimensions 181×77×167 mm ⚙️ Technology AGM ⚖️ Weight 5,7 kg 🏷️ Model AGM STANDARD ## Description ## Stationary battery Q-Battery 12LS-18 18Ah 12V 12*V* Voltage 18*Ah* Capacity 5.70*kg* Weight The **12 V**, **18 Ah** **Q-Battery 12LS-18** stationary battery with AGM technology is designed for UPS, alarms, telecoms and emergency lighting. Measuring 181 × 77 × 167 mm, it is the direct replacement for UPS, alarm and emergency systems fitted from the factory with a 18 Ah battery of this format. - Low self-discharge and high reliability. - Standard format for UPS and emergency systems. - AGM: faster recharging and better cycle resistance than a conventional battery. - Instant response to mains failures. ### Dimensions, polarity and mounting In terms of format, the Q-Battery 12LS-18 measures 181 × 77 × 167 mm (length × width × height) and weighs 5.70 kg. It uses a G112074 hold-down and F3 (flag) 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. ### What the Q-Battery 12LS-18 is for Designed for UPS, alarms, telecoms and emergency lighting, the Q-Battery 12LS-18 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 5.70 kg, F3 (flag) terminals and G112074 hold-down. ### Technology inside the Q-Battery 12LS-18 The 12LS-18 is one of the Q-Battery references for this type of use; it shares the same manufacturing and quality-control criteria as the rest of the brand's catalogue. 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 Q-Battery batteries Q-Battery specialises in AGM and GEL VRLA batteries for UPS, telecoms, solar and deep cycling, with long-life and tubular-plate series for industrial use. We guarantee that every Q-Battery arrives new, charged and with the manufacturer's full warranty. ### Warranty and coverage The Q-Battery 12LS-18 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. Charge with a charger that has an AGM mode: it limits the voltage and protects the glass-fibre separators. ### Shipping, delivery and returns 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 Q-battery 12LS-18 an AGM battery and what are the benefits of AGM? Yes. The Q-battery 12LS-18 is AGM (Absorbent Glass Mat): sealed lead-acid, with the electrolyte absorbed in glass fibre. Compared with a conventional battery it withstands more charge/discharge cycles and handles heat better. ### What are the dimensions of the Q-battery 12LS-18 battery? The Q-battery 12LS-18 takes up 181×77×167 mm (length, width and height, terminals included). Before buying, measure the space in your device: one extra millimetre can stop the hold-down clamp from closing. ### Q-battery BATTERY-12LS-18 or Q-battery BATTERY-12LS-17: which one to choose? It is the smaller sister of the BATTERY-12LS-18 in the same Q-battery range. Compared with the BATTERY-12LS-18 it has 1 Ah less. It costs the same. Less runtime: only if the original had that capacity and there is no room for more. ### Q-battery BATTERY-12LS-18 or Q-battery BATTERY-12LSX-7 F1: which one to choose? The leaner option in the same range, below the BATTERY-12LS-18. Compared with the BATTERY-12LS-18 it has 1 Ah less. It costs 34,00 € less. Less runtime: only if the original had that capacity and there is no room for more. ## Equivalent batteries - [RITAR RT12180](https://baterias.com/gb/battery-ritar-rt12180-12v-18ah-rt-agm) - [Q-battery BATTERY-12LS-17](https://baterias.com/gb/battery-q-battery-12ls-17-12v-17ah) - [Q-battery BATTERY-12LSX-7 F1](https://baterias.com/gb/battery-q-battery-12lsx-7-f1-12v-17ah) ## 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 · 2026-11-12*