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Q-battery 12LS-18 · Stationary UPS battery 12V 18Ah AGM

Specifications

BrandQ-battery
Part number12LS-18
Voltage (V)12
Capacity (C20)18Ah (c20)
TechnologyAGM
Length181.00 cm
Width77.00 cm
Height167.00 cm
Weight5.70 Kgs
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Price: €72.80
VAT included
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  • 14-day returns
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Brand: Q-battery batteries Part number: 12LS-18

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 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
Voltage
12 V
Capacity
18 Ah C20
Dimensions
181×77×167 mm
Technology
AGM
Weight
5,7 kg
Model
AGM STANDARD
Logo Q-Battery

Stationary battery Q-Battery 12LS-18 18Ah 12V

12VVoltage
18AhCapacity
5.70kgWeight

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.

In short: the Q-battery 12LS-18 (18 Ah, 181 × 77 × 167 mm). Verified equivalent alternatives: Ritar RT12180 and Q-battery 12LS-17.

  • 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.

  • Reference
    BCOM-Q-BATTERY-12LS-18

Data sheet

  • Brand
    Q-Battery
  • Reference
    12LS-18
  • Model
    AGM STANDARD
  • Voltage (V)
    12
  • Length
    181.00 cm
  • Width
    77.00 cm
  • Height
    167.00 cm
  • Weight
    5.70 Kgs
  • Technology
    AGM
  • Terminal type
    F3 (flag)
  • Hold-down
    G112074
  • Capacity (C20)
    18Ah (c20)

Specific References

  • MPN
    12LS-18

Comparison: Q-battery BATTERY-12LS-18 vs equivalents — alternatives with the same dimensions, Ah and CCA

The Q-battery BATTERY-12LS-18 is interchangeable with these equivalent references: RT12180 (Ritar), BATTERY-12LS-17 (Q-battery), BATTERY-12LSX-7 F1 (Q-battery).

Product Specifications Technology Price
Q-battery BATTERY-12LS-18 Q-battery BATTERY-12LS-18 This battery 12V 18Ah AGM €72.80
Ritar RT12180 Ritar RT12180 12V 18Ah AGM €63.95
Q-battery BATTERY-12LS-17 Q-battery BATTERY-12LS-17 12V 17Ah AGM €72.80
Q-battery BATTERY-12LSX-7 F1 Q-battery BATTERY-12LSX-7 F1 12V 17Ah AGM €38.80

Equivalences verified by our technical team: same dimensions, polarity, capacity and CCA. Official manufacturer warranty on every option.

Recommended accessories — complement the Q-battery BATTERY-12LS-18 with a charger or tester

Frequently asked questions

Is the Q-battery 12LS-18 an AGM battery and what are the benefits of AGM?

Yes. The 12LS-18 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.

What is the service life of the 12LS-18 model?

Expected lifespan of the Q-battery 12LS-18 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-18 battery?

Dimensions (length × width × height) are 181×77×167 mm — also written as 181x77x167 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-18 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.


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