# Stationary UPS battery Q-battery 12LS-45 12V 45Ah AGM ![Stationary UPS battery Q-battery 12LS-45 12V 45Ah AGM](https://baterias.com/1512-home_default/battery-q-battery-12ls-45-12v-45ah.jpg) > Q-battery 12LS-45 stationary UPS battery 12V 45Ah AGM. AGM STANDARD range. Dimensions 197×165×170 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-45-12v-45ah - **Language**: en-GB - **Brand**: Q-battery - **Reference**: BCOM-Q-BATTERY-12LS-45 - **MPN**: 12LS-45 - **Price**: 181,60 € - **Stock**: Out of stock ## Technical specifications | Feature | Value | |---|---| | Brand | Q-Battery | | Reference | 12 LS-45 | | Model | AGM STANDARD | | Voltage (V) | 12 V | | Largo | 197 cm | | Ancho | 165 cm | | Alto | 170 cm | | Peso | 14.5 kg | | Tecnología | AGM | | Terminal type | F11 (M6) | | Hold down | G112078 | | Capacity (C20) | 45 Ah (c20) | ## Quick description **Q-battery 12LS-45 12V 45Ah** 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 45 Ah C20 📏 Dimensions 197×165×170 mm ⚙️ Technology AGM ⚖️ Weight 14,5 kg 🏷️ Model AGM STANDARD ## Description ## Stationary battery Q-Battery 12LS-45 45Ah 12V 12*V* Voltage 45*Ah* Capacity 14.50*kg* Weight The **Q-Battery 12LS-45** with AGM technology is a **45 Ah**, **12 V** backup battery for UPS, alarms, telecoms and emergency lighting. It measures 197 × 165 × 170 mm, the format sought by anyone replacing a 45 Ah battery in UPS, alarm and emergency systems. - Maintenance-free for its whole service life. - Sealed and gas-free: suitable for cabinets and offices. - Long float life under permanent charge. - AGM technology: absorbed electrolyte, no spills, can be mounted at an angle. ### Dimensions, polarity and mounting It has external dimensions of 197 × 165 × 170 mm and weighs 14.50 kg. It uses a G112078 hold-down and F11 (M6) 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 Q-Battery 12LS-45 is for With 45 Ah, the Q-Battery 12LS-45 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 14.50 kg, F11 (M6) terminals and G112078 hold-down. ### Technology inside the Q-Battery 12LS-45 Within the Q-Battery catalogue, the 12LS-45 is the 45 Ah model designed for this application. 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. ### Q-Battery: the maker behind the 12LS-45 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. ### Manufacturer's warranty The Q-Battery 12LS-45 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 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. ### Shipping, delivery and returns Order **before [[ks:cutoff]]** 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 **[[ks:return_days]] 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 the 12LS-45 model AGM? What does this technology offer? Yes. The 12LS-45 from Q-battery 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 is the Q-battery 12LS-45 battery installed in the vehicle? 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. ### How long does the Q-battery 12LS-45 battery last? Expected lifespan of the Q-battery 12LS-45 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 Q-battery 12LS-45 battery? Dimensions (length × width × height) are 197×165×170 mm — also written as 197x165x170 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 Q-battery 12LS-45? 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. ## 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 · 2026-10-21*