# Stationary UPS battery Long WXL12135W 12V 36Ah AGM ![Stationary UPS battery Long WXL12135W 12V 36Ah AGM](https://baterias.com/1585-home_default/battery-long-wxl12135w-12v-36ah-135wh.jpg) > Long WXL12135W stationary UPS battery 12V 36Ah AGM. WXL Series range. Dimensions 197Γ—131Γ—180 mm. Long float life for UPS, alarms and standby equipment. **Category:** [Batteries for UPS / UPS](https://baterias.com/gb/batteries-for-sai-ups) β†’ [LONG](https://baterias.com/gb/long) - **Canonical URL**: https://baterias.com/gb/battery-long-wxl12135w-12v-36ah-135wh - **Language**: en-GB - **Brand**: LONG - **Reference**: BCOM-LONG-WXL12135W - **MPN**: WXL12135W - **Stock**: Out of stock ## Technical specifications | Feature | Value | |---|---| | Brand | LONG | | Reference | WXL12135 W | | Model | WXL Series | | Voltage (V) | 12 V | | Largo | 197 cm | | Ancho | 131 cm | | Alto | 180 cm | | Peso | 11 kg | | TecnologΓ­a | AGM | | Capacity (C20) | 36 Ah (c20) | | Energy (Wh) | 135 Wh | ## Quick description **Long WXL12135W 12V 36Ah** 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 36 Ah C20 πŸ“ Dimensions 197Γ—131Γ—180 mm βš™οΈ Technology AGM βš–οΈ Weight 11 kg 🏷️ Model WXL Series ## Description ## Stationary battery Long WXL12135W WXL Series 36Ah 12V 12*V* Voltage 36*Ah* Capacity 11*kg* Weight The **12 V**, **36 Ah** **Long WXL12135W** stationary battery from the **WXL Series** range with AGM technology is designed for UPS, alarms, telecoms and emergency lighting. Measuring 197 Γ— 131 Γ— 180 mm, it is the direct replacement for UPS, alarm and emergency systems fitted from the factory with a 36 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 WXL12135W is for The Long WXL12135W 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 11 kg. ### Size, terminals and hold-down of the Long WXL12135W It has external dimensions of 197 Γ— 131 Γ— 180 mm and weighs 11 kg. For a direct replacement, the current battery tray must accept these dimensions and the same terminal layout; otherwise adapters will be needed or the hold-down will change. ### The Long WXL12135W: WXL Series range and AGM technology The **WXL Series** is the Long range the WXL12135W 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 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. ### Long: the maker behind the WXL12135W 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. ### Warranty and coverage The Long WXL12135W 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. ### How to make it last longer 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. ### 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 WXL12135W an AGM battery and what are the benefits of AGM? Yes. The WXL12135W 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 WXL12135W 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 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 WXL12135W battery last? Expected lifespan of the Long WXL12135W 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 WXL12135W battery? Dimensions (length Γ— width Γ— height) are 197Γ—131Γ—180 mm β€” also written as 197x131x180 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 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 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*