# Stationary UPS battery Long WPL50-12N 12V 50Ah AGM ![Stationary UPS battery Long WPL50-12N 12V 50Ah AGM](https://baterias.com/1309-home_default/battery-long-wpl50-12n-12v-50ah.jpg) > Long WPL50-12N stationary UPS battery 12V 50Ah AGM. WPL Series range. Dimensions 199Γ—166Γ—171 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-wpl50-12n-12v-50ah - **Language**: en-GB - **Brand**: LONG - **Reference**: BCOM-LONG-WPL50-12N - **MPN**: WPL50-12N - **Stock**: Out of stock ## Technical specifications | Feature | Value | |---|---| | Brand | LONG | | Reference | WPL50-12 N | | Model | WPL Series | | Voltage (V) | 12 V | | Largo | 199 cm | | Ancho | 166 cm | | Alto | 171 cm | | Peso | 14.8 kg | | TecnologΓ­a | AGM | | Capacity (C20) | 50 Ah (c20) | | Capacity (C5) | 42.5 Ah (c5) | ## Quick description **Long WPL50-12N 12V 50Ah** 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 50 Ah C20 πŸ“ Dimensions 199Γ—166Γ—171 mm βš™οΈ Technology AGM βš–οΈ Weight 14,8 kg 🏷️ Model WPL Series ## Description ## Stationary battery Long WPL50-12N WPL Series 50Ah 12V 12*V* Voltage 50*Ah* Capacity 14.80*kg* Weight The **12 V**, **50 Ah** **Long WPL50-12N** stationary battery from the **WPL Series** range with AGM technology is designed for UPS, alarms, telecoms and emergency lighting. Its 199 Γ— 166 Γ— 171 mm make it the exact replacement for the 50 Ah battery fitted as standard to many UPS, alarm and emergency systems. - Standard format for UPS and emergency systems. - Low self-discharge and high reliability. - Instant response to mains failures. - AGM: faster recharging and better cycle resistance than a conventional battery. ### Dimensions, polarity and mounting It has external dimensions of 199 Γ— 166 Γ— 171 mm and weighs 14.80 kg. Checking the three dimensions and the terminal position before buying avoids the most common mistake when replacing a battery. ### What the Long WPL50-12N is for The Long WPL50-12N 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 14.80 kg. ### The Long WPL50-12N: WPL Series range and AGM technology Within the Long catalogue, the **WPL Series** series groups the references designed for this use. The WPL50-12N is the 50 Ah model of that family, with the same performance as its siblings in other sizes. 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. ### Long: the maker behind the WPL50-12N Long (Kung Long Batteries) is one of the world's largest manufacturers of sealed VRLA batteries. Its AGM and GEL series for UPS, mobility, alarms and cycling are found in equipment worldwide as original equipment. We guarantee that every Long arrives new, charged and with the manufacturer's full warranty. ### Manufacturer's warranty The Long WPL50-12N 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. ### 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. Charge with a charger that has an AGM mode: it limits the voltage and protects the glass-fibre separators. ### When you get it and how to return it Order **before [[ks:cutoff]]** 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 **[[ks:return_days]] days** to return it if it has not been installed, with free collection on the mainland, and shipment tracking by email. ## Frequently asked questions ### Is the Long WPL50-12N an AGM battery and what are the benefits of AGM? Yes. The WPL50-12N 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 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 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 WPL50-12N battery last? Expected lifespan of the Long WPL50-12N 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 WPL50-12N model? Dimensions (length Γ— width Γ— height) are 199Γ—166Γ—171 mm β€” also written as 199x166x171 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 WPL50-12N? 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· 2026-10-03*