# Wheelchair battery Long WP20-12U 12V 20Ah AGM ![Wheelchair battery Long WP20-12U 12V 20Ah AGM](https://baterias.com/1227-home_default/battery-long-wp20-12u-12v-20ah.jpg) > Long WP20-12U wheelchair battery 12V 20Ah AGM. WP Series range. Dimensions 181Γ—76Γ—167 mm. Deep-cycle and sealed, for daily wheelchair and mobility scooter use. **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-wp20-12u-12v-20ah - **Language**: en-GB - **Brand**: LONG - **Reference**: BCOM-LONG-WP20-12U - **MPN**: WP20-12U - **Stock**: Out of stock ## Technical specifications | Feature | Value | |---|---| | Brand | LONG | | Reference | WP20-12 U | | Model | WP Series | | Voltage (V) | 12 V | | Largo | 181 cm | | Ancho | 76 cm | | Alto | 167 cm | | Peso | 5.95 kg | | TecnologΓ­a | AGM | | Capacity (C20) | 20 Ah (c20) | | Capacity (C5) | 17 Ah (c5) | ## Quick description **Long WP20-12U 12V 20Ah** is a deep-cycle battery for wheelchairs and mobility scooters, optimised to be discharged and recharged daily down to 80 % DOD without losing range. ## Why this wheelchair battery? - **Daily cycling without wear** handles deep discharges without losing capacity - **Sealed AGM/GEL** no maintenance, no risk of spills - **Thousands of useful cycles** over its full lifetime πŸ”Œ Voltage 12 V ⚑ Capacity 20 Ah C20 πŸ“ Dimensions 181Γ—76Γ—167 mm βš™οΈ Technology AGM βš–οΈ Weight 5,95 kg 🏷️ Model WP Series ## Description ## Mobility battery Long WP20-12U WP Series 20Ah 12V 12*V* Voltage 20*Ah* Capacity 5.95*kg* Weight Designed for power wheelchairs, mobility scooters and light electric vehicles, the **Long WP20-12U** from the **WP Series** range offers **20 Ah** of deep-cycle capacity with AGM technology. It replaces the original battery without adaptation in power wheelchairs and mobility scooters with a 181 Γ— 76 Γ— 167 mm format: same 20 Ah capacity. - AGM technology: absorbed electrolyte, no spills, can be mounted at an angle. - Designed to be discharged and recharged daily without losing capacity. - Thousands of useful cycles over its lifetime. - Standard replacement format for wheelchairs and scooters. ### What the Long WP20-12U is for With 20 Ah, the Long WP20-12U offers the daily range that power wheelchairs, mobility scooters and light electric vehicles need, with a sealed construction that is safe indoors. Check that it matches your current battery in dimensions, terminals and hold-down: this reference has a weight of 5.95 kg. ### Will it fit your current battery tray? In terms of format, the Long WP20-12U measures 181 Γ— 76 Γ— 167 mm (length Γ— width Γ— height) and weighs 5.95 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 WP20-12U: WP Series range and AGM technology Within the Long catalogue, the **WP Series** series groups the references designed for this use. The WP20-12U is the 20 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. ### Why choose Long batteries 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 WP20-12U 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. ### Usage and maintenance tips Recharge the wheelchair or scooter after each use and do not leave it discharged for days: lead sulphates and loses capacity. Use the original charger or one compatible with the battery technology (AGM/GEL) and always replace both batteries in the set together. ### Delivery times 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 WP20-12U model AGM? What does this technology offer? Yes. The WP20-12U 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 WP20-12U 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. ### What is the service life of the WP20-12U model? Expected lifespan of the Long WP20-12U 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 WP20-12U model? 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. ### What are the equivalents of the WP20-12U 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€” automotive battery specialists since 2015. β†’ https://baterias.com/gb/technical-team --- *baterias.com β€” Automotive batteries Β· 2026-10-10*