# Stationary UPS battery Long WPL125-12RN 12V 125Ah AGM ![Stationary UPS battery Long WPL125-12RN 12V 125Ah AGM](https://baterias.com/1325-home_default/battery-long-wpl125-12rn-12v-125ah.jpg) > Long WPL125-12RN stationary UPS battery 12V 125Ah AGM. WPL Series range. Dimensions 408Γ—177Γ—224 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-wpl125-12rn-12v-125ah - **Language**: en-GB - **Brand**: LONG - **Reference**: BCOM-LONG-WPL125-12RN - **MPN**: WPL125-12RN - **Stock**: Out of stock ## Technical specifications | Feature | Value | |---|---| | Brand | LONG | | Reference | WPL125-12 RN | | Model | WPL Series | | Voltage (V) | 12 V | | Largo | 408 cm | | Ancho | 177 cm | | Alto | 224 cm | | Peso | 39.6 kg | | TecnologΓ­a | AGM | | Capacity (C20) | 125 Ah (c20) | | Capacity (C5) | 106.25 Ah (c5) | ## Quick description **Long WPL125-12RN 12V 125Ah** 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 125 Ah C20 πŸ“ Dimensions 408Γ—177Γ—224 mm βš™οΈ Technology AGM βš–οΈ Weight 39,6 kg 🏷️ Model WPL Series ## Description ## Stationary battery Long WPL125-12RN WPL Series 125Ah 12V 12*V* Voltage 125*Ah* Capacity 39.60*kg* Weight The **Long WPL125-12RN** with AGM technology is a **125 Ah**, **12 V** backup battery for UPS, alarms, telecoms and emergency lighting. Measuring 408 Γ— 177 Γ— 224 mm, it is the direct replacement for UPS, alarm and emergency systems fitted from the factory with a 125 Ah battery of this format. - 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. ### What the Long WPL125-12RN is for With 125 Ah, the Long WPL125-12RN 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 39.60 kg. ### Dimensions, polarity and mounting The Long WPL125-12RN is made in the 408 Γ— 177 Γ— 224 mm format and weighs 39.60 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. ### 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. We guarantee that every Long arrives new, charged and with the manufacturer's full warranty. ### The Long WPL125-12RN: WPL Series range and AGM technology Within the Long catalogue, the **WPL Series** series groups the references designed for this use. The WPL125-12RN is the 125 Ah model of that family, with the same performance as its siblings in other sizes. AGM means the acid is held in a glass mat instead of floating free. That is why the battery can be installed in the cabin without gases, survives more cycles and recovers its charge quickly. ### 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 WPL125-12RN 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 Orders placed **before [[ks:cutoff]]** with the battery in stock ship the same day. Delivery in mainland Spain and Portugal takes 24-48 working hours; for the Balearic and Canary Islands and the rest of the European Union allow 3 to 5 working days. You have **[[ks:return_days]] 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 WPL125-12RN an AGM battery and what are the benefits of AGM? Yes. The WPL125-12RN 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 WPL125-12RN 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 (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 WPL125-12RN battery last? Expected lifespan of the Long WPL125-12RN 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 WPL125-12RN battery? Dimensions (length Γ— width Γ— height) are 408Γ—177Γ—224 mm β€” also written as 408x177x224 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. ### Which batteries are equivalent to the Long WPL125-12RN? 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€” over 25 years of experience validating automotive batteries. β†’ https://baterias.com/gb/technical-team --- *baterias.com β€” Automotive batteries Β· 2026-10-04*