# Stationary UPS battery Long WP18-12NSHR 12V 18Ah AGM ![Stationary UPS battery Long WP18-12NSHR 12V 18Ah AGM](https://baterias.com/1267-home_default/battery-long-wp18-12nshr-12v-18ah.jpg) > Long WP18-12NSHR stationary UPS battery 12V 18Ah AGM. WP Series range. Dimensions 181Γ—76Γ—167 mm. Long float life for UPS, alarms and standby equipment. **Category:** [Power Wheelchair Batteries](https://baterias.com/gb/batteries-for-electric-wheelchairs) β†’ [LONG](https://baterias.com/gb/long) - **Canonical URL**: https://baterias.com/gb/battery-long-wp18-12nshr-12v-18ah - **Language**: en-GB - **Brand**: LONG - **Reference**: BCOM-LONG-WP18-12NSHR - **MPN**: WP18-12NSHR - **Stock**: Out of stock ## Technical specifications | Feature | Value | |---|---| | Brand | LONG | | Reference | WP18-12 NSHR | | Model | WP Series | | Voltage (V) | 12 V | | Largo | 181 cm | | Ancho | 76 cm | | Alto | 167 cm | | Peso | 5.6 kg | | TecnologΓ­a | AGM | | Capacity (C20) | 18 Ah (c20) | | Capacity (C5) | 15.3 Ah (c5) | ## Quick description **Long WP18-12NSHR 12V 18Ah** 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 18 Ah C20 πŸ“ Dimensions 181Γ—76Γ—167 mm βš™οΈ Technology AGM βš–οΈ Weight 5,6 kg 🏷️ Model WP Series ## Description ## Mobility battery Long WP18-12NSHR WP Series 18Ah 12V 12*V* Voltage 18*Ah* Capacity 5.60*kg* Weight The **12 V**, **18 Ah** **Long WP18-12NSHR** from the **WP Series** range with AGM technology is the standard replacement for power wheelchairs, mobility scooters and light electric vehicles. Measuring 181 Γ— 76 Γ— 167 mm, it is the direct replacement for power wheelchairs and mobility scooters fitted from the factory with a 18 Ah battery of this format. - No maintenance, no water top-ups. - Approved for air and sea transport (VRLA). - AGM: faster recharging and better cycle resistance than a conventional battery. - Sealed AGM/GEL: safe indoors and in transport. ### What the Long WP18-12NSHR is for The Long WP18-12NSHR is the usual replacement in power wheelchairs, mobility scooters and light electric vehicles. Recharge after each use and avoid leaving it discharged for days. Check that it matches your current battery in dimensions, terminals and hold-down: this reference has a weight of 5.60 kg. ### The Long WP18-12NSHR: WP Series range and AGM technology Within the Long catalogue, the **WP Series** series groups the references designed for this use. The WP18-12NSHR is the 18 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. ### Size, terminals and hold-down of the Long WP18-12NSHR The Long WP18-12NSHR is made in the 181 Γ— 76 Γ— 167 mm format and weighs 5.60 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. ### 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. We guarantee that every Long arrives new, charged and with the manufacturer's full warranty. ### Care and maintenance Charge with a charger that has an AGM mode: it limits the voltage and protects the glass-fibre separators. Recharge the wheelchair or scooter after each use and do not leave it discharged for days: lead sulphates and loses capacity. ### Manufacturer's warranty The Long WP18-12NSHR 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 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 WP18-12NSHR model AGM? What does this technology offer? Yes. The WP18-12NSHR 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 WP18-12NSHR 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 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 many years does this battery last? Expected lifespan of the Long WP18-12NSHR 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 WP18-12NSHR battery? Dimensions (length Γ— width Γ— height) are 181Γ—76Γ—167 mm β€” also written as 181x76x167 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€” automotive battery specialists since 2012. β†’ https://baterias.com/gb/technical-team --- *baterias.com β€” Automotive batteries Β· 2026-10-24*