# Stationary UPS battery Long WP2.9-12TR 12V 2.9Ah AGM ![Stationary UPS battery Long WP2.9-12TR 12V 2.9Ah AGM](https://baterias.com/1213-home_default/battery-long-wp2_9-12tr-12v-29ah.jpg) > Long WP2.9-12TR stationary UPS battery 12V 2.9Ah AGM. WP Series range. Dimensions 79Γ—56Γ—107 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-wp2_9-12tr-12v-29ah - **Language**: en-GB - **Brand**: LONG - **Reference**: BCOM-LONG-WP2.9-12TR - **MPN**: WP2.9-12TR - **Stock**: Out of stock ## Technical specifications | Feature | Value | |---|---| | Brand | LONG | | Reference | WP2.9-12 TR | | Model | WP Series | | Voltage (V) | 12 V | | Largo | 79 cm | | Ancho | 56 cm | | Alto | 107 cm | | Peso | 1.19 kg | | TecnologΓ­a | AGM | | Capacity (C20) | 2.9 Ah (c20) | | Capacity (C5) | 2.465 Ah (c5) | ## Quick description **Long WP2.9-12TR 12V 2Ah** 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 2 Ah C20 πŸ“ Dimensions 79Γ—56Γ—107 mm βš™οΈ Technology AGM βš–οΈ Weight 1,19 kg 🏷️ Model WP Series ## Description ## Mobility battery Long WP2.9-12TR WP Series 2.9Ah 12V 12*V* Voltage 2.9*Ah* Capacity 1.19*kg* Weight Designed for power wheelchairs, mobility scooters and light electric vehicles, the **Long WP2.9-12TR** from the **WP Series** range offers **2.9 Ah** of deep-cycle capacity with AGM technology. Its 79 Γ— 56 Γ— 107 mm make it the exact replacement for the 2.9 Ah battery fitted as standard to many power wheelchairs and mobility scooters. - Approved for air and sea transport (VRLA). - No maintenance, no water top-ups. - Sealed AGM/GEL: safe indoors and in transport. - AGM: faster recharging and better cycle resistance than a conventional battery. ### Will it fit your current battery tray? The Long WP2.9-12TR is made in the 79 Γ— 56 Γ— 107 mm format and weighs 1.19 kg. Checking the three dimensions and the terminal position before buying avoids the most common mistake when replacing a battery. ### What the Long WP2.9-12TR is for The Long WP2.9-12TR 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 1.19 kg. ### The Long WP2.9-12TR: WP Series range and AGM technology The **WP Series** is the Long range the WP2.9-12TR 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. ### 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. ### Manufacturer's warranty The Long WP2.9-12TR 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 Use the original charger or one compatible with the battery technology (AGM/GEL) and always replace both batteries in the set together. Charge with a charger that has an AGM mode: it limits the voltage and protects the glass-fibre separators. ### Shipping, delivery and returns 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 WP2.9-12TR model AGM? What does this technology offer? Yes. The WP2.9-12TR 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. ### What is the service life of the WP2.9-12TR model? Expected lifespan of the Long WP2.9-12TR 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 WP2.9-12TR model? Dimensions (length Γ— width Γ— height) are 79Γ—56Γ—107 mm β€” also written as 79x56x107 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. ### What are the equivalents of the WP2.9-12TR model? 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· 2026-10-06*