Long WPS45-12 · Stationary UPS battery 12V 45Ah AGM

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Specifications

BrandLONG
Part numberWPS45-12
Voltage (V)12
Capacity (C20)45Ah (c20)
Capacity (C5)38.25Ah (c5)
TechnologyAGM
Length197.70 cm
Width166.00 cm
Height171.00 cm
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Long WPS45-12 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 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
45 Ah C20
Dimensions
197×166×171 mm
Technology
AGM
Weight
13,5 kg
Model
WPS Series
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Stationary battery Long WPS45-12 WPS Series 45Ah 12V

12VVoltage
45AhCapacity
13.50kgWeight

The 12 V, 45 Ah Long WPS45-12 stationary battery from the WPS Series range with AGM technology is designed for UPS, alarms, telecoms and emergency lighting. It measures 197 × 166 × 171 mm, the format sought by anyone replacing a 45 Ah battery in UPS, alarm and emergency systems.

  • Long float life under permanent charge.
  • AGM technology: absorbed electrolyte, no spills, can be mounted at an angle.
  • Maintenance-free for its whole service life.
  • Sealed and gas-free: suitable for cabinets and offices.

What the Long WPS45-12 is for

The Long WPS45-12 is designed for UPS, alarms, telecoms and emergency lighting: it sits on float charge and responds instantly to a mains failure. Check that it matches your current battery in dimensions, terminals and hold-down: this reference has a weight of 13.50 kg.

The Long WPS45-12: WPS Series range and AGM technology

The WPS45-12 is part of the Long WPS Series range. Choosing the right reference within the series comes down to capacity, dimensions and terminals: technology and quality are common to the whole family.

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.

Will it fit your current battery tray?

The Long WPS45-12 is made in the 197 × 166 × 171 mm format and weighs 13.50 kg. Checking the three dimensions and the terminal position before buying avoids the most common mistake when replacing a battery.

Why choose Long batteries

Long batteries combine large-scale production with ISO quality standards and a batch-to-batch consistency that has made them the de-facto standard in backup systems and electric mobility. At baterias.com we work directly with the manufacturer or its official distributor: real stock, brand-new product and official warranty.

Care and maintenance

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.

Manufacturer's warranty

The Long WPS45-12 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.

Delivery times and returns

Order before 6:00 pm 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 14 days to return it if it has not been installed, with free collection on the mainland, and shipment tracking by email.

BCOM-LONG-WPS45-12

Data sheet

Brand
LONG
Reference
WPS45-12
Model
WPS Series
Voltage (V)
12
Length
197.70 cm
Width
166.00 cm
Height
171.00 cm
Weight
13.50 Kgs
Technology
AGM
Capacity (C20)
45Ah (c20)
Capacity (C5)
38.25Ah (c5)

Specific References

MPN
WPS45-12

Recommended accessories — complement the Long WPS45-12 with a charger or tester

How to change the battery

Guide to replace a cyclic battery (12V 4-30Ah) for UPS, mobility scooter, alarm or backup device. Estimated time 10-15 minutes. Important: discharge residual voltage before handling.

⏱ 10-15 min🛠 Tools: Screwdriver or small wrench (3-5 mm typical) · Protective gloves
  1. Step 1. Power off and unplug the device

    Unplug the device (UPS, scooter, alarm) and leave it off for at least 30 seconds to discharge residual capacitor voltage. Work on an insulating surface.

  2. Step 2. Locate the battery compartment

    Usually under the seat (mobility scooter/wheelchair), in the rear module of the UPS, or behind a side panel with screws. Check the device manual for unusual models.

  3. Step 3. Disconnect the negative (−) first

    With insulated gloves, remove the negative (−) cable first. Some UPS have protection fuses — note their position before removing.

  4. Step 4. Disconnect the positive (+) terminal

    Repeat with the positive cable (red, marked +). Important: never let a terminal touch metal of the car while the other is still connected.

  5. Step 5. Remove the old battery

    Typical weight 1-15 kg depending on capacity. Many cyclic batteries are AGM/GEL — keep them upright. Do NOT invert the battery: even sealed, residue may exist.

  6. Step 6. Fit the new battery

    Same orientation and type (AGM, GEL or flooded). Polarity must match the device, not a chassis (this is not a car). Make sure terminals do not touch metal parts of the compartment.

  7. Step 7. Connect the positive (+) first

    On cyclic devices the order is reversed compared to cars: positive (+) first, negative (−) afterwards. Tighten without forcing — the plastic terminal housing of cyclic batteries damages easily.

  8. Step 8. Initial charge before first use

    Cyclic batteries ship at 60-80%. Before first use, connect the device charger for 8-12 hours (or use an AGM/GEL smart charger if available). This avoids short cycles and extends lifespan.

Frequently asked questions

Is the WPS45-12 model AGM? What does this technology offer?

Yes. The WPS45-12 from Long 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 fit the WPS45-12 model in my device?

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 many years does this battery last?

Expected lifespan of the Long WPS45-12 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 size is this battery?

Dimensions (length × width × height) are 198×166×171 mm — also written as 198x166x171 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 interchangeable batteries are there for this one?

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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