# Stationary UPS battery Long WXL12135WN 12V 36Ah AGM ![Stationary UPS battery Long WXL12135WN 12V 36Ah AGM](https://baterias.com/1586-home_default/battery-long-wxl12135wn-12v-36ah-135wh.jpg) > Long WXL12135WN stationary UPS battery 12V 36Ah AGM. WXL Series range. Dimensions 197Γ—131Γ—170 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-wxl12135wn-12v-36ah-135wh - **Language**: en-GB - **Brand**: LONG - **Reference**: BCOM-LONG-WXL12135WN - **MPN**: WXL12135WN - **Stock**: Out of stock ## Technical specifications | Feature | Value | |---|---| | Brand | LONG | | Reference | WXL12135 WN | | Model | WXL Series | | Voltage (V) | 12 V | | Largo | 197 cm | | Ancho | 131 cm | | Alto | 170 cm | | Peso | 11 kg | | TecnologΓ­a | AGM | | Capacity (C20) | 36 Ah (c20) | | Energy (Wh) | 135 Wh | ## Quick description **Long WXL12135WN 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—170 mm βš™οΈ Technology AGM βš–οΈ Weight 11 kg 🏷️ Model WXL Series ## Description ## Stationary battery Long WXL12135WN WXL Series 36Ah 12V 12*V* Voltage 36*Ah* Capacity 11*kg* Weight The **12 V**, **36 Ah** **Long WXL12135WN** stationary battery from the **WXL Series** range with AGM technology is designed for UPS, alarms, telecoms and emergency lighting. It replaces the original battery without adaptation in UPS, alarm and emergency systems with a 197 Γ— 131 Γ— 170 mm format: same 36 Ah capacity. - Sealed and gas-free: suitable for cabinets and offices. - Maintenance-free for its whole service life. - AGM technology: absorbed electrolyte, no spills, can be mounted at an angle. - Long float life under permanent charge. ### What the Long WXL12135WN is for With 36 Ah, the Long WXL12135WN 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 11 kg. ### Will it fit your current battery tray? The Long WXL12135WN is made in the 197 Γ— 131 Γ— 170 mm format and weighs 11 kg. Checking the three dimensions and the terminal position before buying avoids the most common mistake when replacing a battery. ### What Long does differently 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. ### The Long WXL12135WN: WXL Series range and AGM technology Within the Long catalogue, the **WXL Series** series groups the references designed for this use. The WXL12135WN is the 36 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. ### How to make it last longer 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. ### Official warranty The Long WXL12135WN 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 Same-day dispatch from our warehouse for in-stock orders placed **before [[ks:cutoff]]**: 24-48 working hours in mainland Spain and Portugal, 3 to 5 days in the islands and the rest of Europe. Returns are accepted for **[[ks:return_days]] days** if the battery has not been used (free collection on the Iberian mainland). You will receive tracking by email. ## Frequently asked questions ### Is the WXL12135WN model AGM? What does this technology offer? Yes. The WXL12135WN 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 WXL12135WN 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 WXL12135WN battery last? Expected lifespan of the Long WXL12135WN 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 WXL12135WN model? Dimensions (length Γ— width Γ— height) are 197Γ—131Γ—170 mm β€” also written as 197x131x170 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 WXL12135WN? 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· 2026-10-05*