Q-battery 12LS-3.4 · Stationary UPS battery 12V 3.4Ah AGM
Specifications
| Brand | Q-battery |
|---|---|
| Part number | 12LS-3.4 |
| Voltage (V) | 12 |
| Capacity (C20) | 3.4Ah (c20) |
| Technology | AGM |
| Length | 134.00 cm |
| Width | 67.00 cm |
| Height | 60.50 cm |
| Weight | 1.35 Kgs |
Q-battery 12LS-3.4 12V 3Ah 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 responsewhen the mains drop, no voltage dip
- Long life under 24/7 chargeoptimised for permanent service
- Compatible with your systemexisting UPS units and alarm control panels

Stationary battery Q-Battery 12LS-3.4 3.4Ah 12V
The 12 V, 3.4 Ah Q-Battery 12LS-3.4 stationary battery with AGM technology is designed for UPS, alarms, telecoms and emergency lighting. It measures 134 × 67 × 60 mm, the format sought by anyone replacing a 3.4 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.
What the Q-Battery 12LS-3.4 is for
With 3.4 Ah, the Q-Battery 12LS-3.4 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, F1 (4 75mm) terminals and G112069 hold-down.
Size, terminals and hold-down of the Q-Battery 12LS-3.4
In terms of format, the Q-Battery 12LS-3.4 measures 134 × 67 × 60 mm (length × width × height) and weighs 1.35 kg. It uses a G112069 hold-down and F1 (4 75mm) 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.
Technology inside the Q-Battery 12LS-3.4
The 12LS-3.4 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.
AGM (Absorbent Glass Mat) technology seals the electrolyte in glass microfibre. The result is a maintenance-free battery that is highly vibration-resistant and able to withstand deep discharges that would ruin a classic lead-acid battery.
Q-Battery: the maker behind the 12LS-3.4
The Q-Battery catalogue runs from small alarm batteries to large traction monoblocs, always with sealed, maintenance-free technology. We guarantee that every Q-Battery arrives new, charged and with the manufacturer's full warranty.
Warranty and coverage
The Q-Battery 12LS-3.4 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
Charge with a charger that has an AGM mode: it limits the voltage and protects the glass-fibre separators. Check the float voltage of the UPS or charger: a voltage that is too high shortens the life of a sealed battery.
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.
Data sheet
-
BrandQ-Battery
-
Reference12LS-3.4
-
ModelAGM STANDARD
-
Voltage (V)12
-
Length134.00 cm
-
Width67.00 cm
-
Height60.50 cm
-
Weight1.35 Kgs
-
TechnologyAGM
-
Terminal typeF1 (4 75mm)
-
Hold-downG112069
-
Capacity (C20)3.4Ah (c20)
Specific References
-
EAN134250889610104
-
MPN12LS-3.4
Codes and references Q-battery 12LS-3.4
| Brand | Q-battery |
|---|---|
| Manufacturer range | AGM STANDARD |
| Manufacturer part number (MPN) | 12LS-3.4 |
| Also known as | 12LS3.4 · 12LS 3.4 |
| EAN-13 barcode | 4250889610104 |
| Dimensions (length × width × height) | 134 × 67 × 61 mm (134x67x61) |
Recommended accessories
Frequently asked questions
Is the Q-battery 12LS-3.4 an AGM battery and what are the benefits of AGM?
Yes. The 12LS-3.4 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 do I change this battery step by step?
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-3.4 battery last?
Expected lifespan of the Q-battery 12LS-3.4 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 12LS-3.4 model?
Dimensions (length × width × height) are 134×67×61 mm — also written as 134x67x61 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.
What are the equivalents of the 12LS-3.4 model?
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.
The top-rated online battery store in Spain
-
Audited by Trustpilot, no filters, no edits. The top-rated battery store in Spain.
Trustpilot · verified, no filters
-
Official Varta distributor
Official Varta wholesale distributor. 100% genuine batteries, recently manufactured, best price and no middlemen.
World’s best-selling battery brand
-
+100,000 satisfied customers
More than 100,000 customers already trust baterias.com — and recommend us to their friends and family.
They trust us and recommend us
Choose trust, choose quality, choose baterias.com.