# Stationary UPS battery Long WPL12550WN 12V 155Ah AGM ![Stationary UPS battery Long WPL12550WN 12V 155Ah AGM](https://baterias.com/1328-home_default/battery-long-wpl12550wn-12v-155ah.jpg) > Long WPL12550WN stationary UPS battery 12V 155Ah AGM. WPL Series range. Dimensions 483Γ—170Γ—240 mm. Long float life for UPS, alarms and standby equipment. **Category:** [Stationary Batteries](https://baterias.com/gb/stationary-batteries) β†’ [LONG](https://baterias.com/gb/long) - **Canonical URL**: https://baterias.com/gb/battery-long-wpl12550wn-12v-155ah - **Language**: en-GB - **Brand**: LONG - **Reference**: BCOM-LONG-WPL12550WN - **MPN**: WPL12550WN - **Stock**: Out of stock ## Technical specifications | Feature | Value | |---|---| | Brand | LONG | | Reference | WPL12550 WN | | Model | WPL Series | | Voltage (V) | 12 V | | Largo | 483 cm | | Ancho | 170 cm | | Alto | 240 cm | | Peso | 49.8 kg | | TecnologΓ­a | AGM | | Capacity (C20) | 155 Ah (c20) | | Capacity (C5) | 131.75 Ah (c5) | ## Quick description **Long WPL12550WN 12V 155Ah** 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 πŸ”Œ Voltage 12 V ⚑ Capacity 155 Ah C20 πŸ“ Dimensions 483Γ—170Γ—240 mm βš™οΈ Technology AGM βš–οΈ Weight 49,8 kg 🏷️ Model WPL Series ## Description ## Stationary battery Long WPL12550WN WPL Series 155Ah 12V 12*V* Voltage 155*Ah* Capacity 49.80*kg* Weight The **Long WPL12550WN** with AGM technology is a **155 Ah**, **12 V** backup battery for UPS, alarms, telecoms and emergency lighting. It measures 483 Γ— 170 Γ— 240 mm, the format sought by anyone replacing a 155 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 Long WPL12550WN is for The Long WPL12550WN 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 49.80 kg. ### The Long WPL12550WN: WPL Series range and AGM technology The **WPL Series** is the Long range the WPL12550WN 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. 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. ### Size, terminals and hold-down of the Long WPL12550WN The Long WPL12550WN is made in the 483 Γ— 170 Γ— 240 mm format and weighs 49.80 kg. 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. ### Long: the maker behind the WPL12550WN 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. We guarantee that every Long arrives new, charged and with the manufacturer's full warranty. ### Care and maintenance Check the float voltage of the UPS or charger: a voltage that is too high shortens the life of a sealed battery. Replace all the batteries in the set at once and avoid environments continuously above 25 Β°C. ### Official warranty The Long WPL12550WN 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. ### 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. ## Frequently asked questions ### Is the Long WPL12550WN an AGM battery and what are the benefits of AGM? Yes. The WPL12550WN 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 is the Long WPL12550WN 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 (βˆ’) 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 β€” match the polarity shown on the product sheet; 6) connect the positive (+) first, then the negative (βˆ’). On devices with Start-Stop or BMS, register the battery via OBD so the alternator applies the correct charging profile. ### How long does the Long WPL12550WN battery last? Expected lifespan of the Long WPL12550WN 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 Long WPL12550WN battery? Dimensions (length Γ— width Γ— height) are 483Γ—170Γ—240 mm β€” also written as 483x170x240 mm β€” 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 WPL12550WN 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 β€” 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 β€” automotive battery specialists since 2012. β†’ https://baterias.com/gb/technical-team --- *baterias.com β€” Automotive batteries Β· 2026-10-26*