# Caravan battery Q-battery 12SEM-105 12V 105Ah ![Caravan battery Q-battery 12SEM-105 12V 105Ah](https://baterias.com/1534-home_default/battery-q-battery-12sem-105-12v-105ah.jpg) > Q-battery 12SEM-105 caravan battery 12V 105Ah. SEMITRACTION BATTERY range. Dimensions 353×175×190 mm, + terminal on the right. For your on-board services. **Category:** [Mobility Vehicle Batteries](https://baterias.com/gb/batteries-for-mobility-vehicles) → [Q-battery](https://baterias.com/gb/q-battery) - **Canonical URL**: https://baterias.com/gb/battery-q-battery-12sem-105-12v-105ah - **Language**: en-GB - **Brand**: Q-battery - **Reference**: BCOM-Q-BATTERY-12SEM-105 - **MPN**: 12SEM-105 - **Price**: 207,60 € - **Stock**: Out of stock ## Technical specifications | Feature | Value | |---|---| | Brand | Q-Battery | | Reference | 12 SEM-105 | | Model | SEMITRACTION BATTERY | | Voltage (V) | 12 V | | Largo | 353 cm | | Ancho | 175 cm | | Alto | 190 cm | | Peso | 25 kg | | Tecnología | Lead-acid | | Terminal layout | Positive terminal on the right | | Terminal type | A-Pole | | Hold down | B0 | | Capacity (C20) | 105 Ah (c20) | ## Quick description **Q-battery 12SEM-105 12V 105Ah** is a leisure battery for campers, motorhomes and caravans. Designed to power the entire interior kit (fridge, heater, water pump, USB, LED lighting) for several days off-grid, with no need to plug into a campsite hookup. ## Why this caravan battery? - **Real off-grid autonomy** no campsite hookup needed - **Lasts the whole season** handles daily discharges without capacity loss - **Powers it all at once** fridge, water pump, LED and USB without issues 🔌 Voltage 12 V ⚡ Capacity 105 Ah C20 📏 Dimensions 353×175×190 mm ⚙️ Technology Lead-acid 🧭 Polarity Positive on the right ⚖️ Weight 25 kg 🏷️ Model SEMITRACTION BATTERY ## Description ## Mobility battery Q-Battery 12SEM-105 Semitraction Battery 105Ah 12V 12*V* Voltage 105*Ah* Capacity 25*kg* Weight The **12 V**, **105 Ah** **Q-Battery 12SEM-105** from the **Semitraction Battery** range with conventional lead-acid technology is the standard replacement for power wheelchairs, mobility scooters and light electric vehicles. It replaces the original battery without adaptation in power wheelchairs and mobility scooters with a 353 × 175 × 190 mm format: same 105 Ah capacity and the positive terminal on the right. - Thousands of useful cycles over its lifetime. - Standard replacement format for wheelchairs and scooters. - Conventional lead-acid: the most proven and economical technology. - Designed to be discharged and recharged daily without losing capacity. ### What the Q-Battery 12SEM-105 is for With 105 Ah, the Q-Battery 12SEM-105 offers the daily range that power wheelchairs, mobility scooters and light electric vehicles need, with a sealed construction that is safe indoors. Check that it matches your current battery in dimensions, terminals and hold-down: this reference has a weight of 25 kg, A-Pole terminals and B0 hold-down. ### Dimensions, polarity and mounting The Q-Battery 12SEM-105 is made in the 353 × 175 × 190 mm format and weighs 25 kg. The positive terminal on the right decides which side the cables end up on: it is the detail that causes most buying mistakes, so check it before ordering. It uses a B0 hold-down and A-Pole terminals, the system that anchors and connects it in the vehicle. Checking the three dimensions and the terminal position before buying avoids the most common mistake when replacing a battery. ### What Q-Battery does differently 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. At baterias.com we work directly with the manufacturer or its official distributor: real stock, brand-new product and official warranty. ### The Q-Battery 12SEM-105: Semitraction Battery range and conventional lead-acid technology The **Semitraction Battery** is the Q-Battery range the 12SEM-105 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. Conventional lead-acid is the benchmark against which other technologies are compared: good cranking current, great tolerance to alternator charging and the best price per amp-hour. ### How to make it last longer Use the original charger or one compatible with the battery technology (AGM/GEL) and always replace both batteries in the set together. Recharge the wheelchair or scooter after each use and do not leave it discharged for days: lead sulphates and loses capacity. ### Warranty and coverage The Q-Battery 12SEM-105 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. ### When you get it and how to return it 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 ### How is the Q-battery 12SEM-105 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 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 Q-battery 12SEM-105 battery last? Expected lifespan of the Q-battery 12SEM-105 is 4 to 6 years in regular device use without 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 12SEM-105 model? Dimensions (length × width × height) are 353×175×190 mm — also written as 353x175x190 mm and correspond to the European L5 case size — 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 12SEM-105? 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 2015. → https://baterias.com/gb/technical-team --- *baterias.com — Automotive batteries · 2026-10-10*