# Wheelchair battery Long LG17-12 12V 17Ah GEL ![Wheelchair battery Long LG17-12 12V 17Ah GEL](https://baterias.com/1180-home_default/battery-long-lg17-12-12v-17ah.jpg) > Long LG17-12 wheelchair battery 12V 17Ah GEL. LG Series range. Dimensions 181Γ—76Γ—167 mm, + terminal on the right. For daily wheelchair 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-lg17-12-12v-17ah - **Language**: en-GB - **Brand**: LONG - **Reference**: BCOM-LONG-LG17-12 - **MPN**: LG17-12 - **Stock**: Out of stock ## Technical specifications | Feature | Value | |---|---| | Brand | LONG | | Reference | LG17-12 | | Model | LG Series | | Voltage (V) | 12 V | | Largo | 181 cm | | Ancho | 76 cm | | Alto | 167 cm | | Peso | 6.3 kg | | TecnologΓ­a | GEL | | Terminal layout | Positive terminal on the right | | Capacity (C20) | 17 Ah (c20) | | Capacity (C5) | 14.45 Ah (c5) | ## Quick description **Long LG17-12 12V 17Ah** is a sealed AGM/GEL battery for daily mobility use: maintenance-free, no risk of spills, and thousands of useful cycles well beyond a starter battery. ### 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 17 Ah C20 πŸ“ Dimensions 181Γ—76Γ—167 mm βš™οΈ Technology GEL 🧭 Polarity Positive on the right βš–οΈ Weight 6,3 kg 🏷️ Model LG Series ## Description ## Mobility battery Long LG17-12 LG Series 17Ah 12V 12*V* Voltage 17*Ah* Capacity 6.30*kg* Weight The **12 V**, **17 Ah** **Long LG17-12** from the **LG Series** range with GEL technology is the standard replacement for power wheelchairs, mobility scooters and light electric vehicles. Its 181 Γ— 76 Γ— 167 mm and the positive terminal on the right make it the exact replacement for the 17 Ah battery fitted as standard to many power wheelchairs and mobility scooters. - Sealed AGM/GEL: safe indoors and in transport. - GEL: excellent resistance to deep discharge and long cycle life. - Approved for air and sea transport (VRLA). - No maintenance, no water top-ups. ### Size, terminals and hold-down of the Long LG17-12 The Long LG17-12 is made in the 181 Γ— 76 Γ— 167 mm format and weighs 6.30 kg. The positive terminal on the right decides which side the cables end up on: it is the detail that causes most buying mistakes, so check it before ordering. 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. ### What the Long LG17-12 is for With 17 Ah, the Long LG17-12 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 6.30 kg. ### The Long LG17-12: LG Series range and GEL technology The LG17-12 is part of the Long **LG Series** range. Choosing the right reference within the series comes down to capacity, dimensions and terminals: technology and quality are common to the whole family. In a GEL battery the electrolyte is gelled with silica: it is fully sealed, cannot spill and tolerates deep discharge very well. It is the preferred technology in electric mobility, marine service and heavy-cycling applications. ### 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. We guarantee that every Long arrives new, charged and with the manufacturer's full warranty. ### Warranty and coverage The Long LG17-12 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. ### Care and maintenance Use the original charger or one compatible with the battery technology (AGM/GEL) and always replace both batteries in the set together. GEL batteries need lower charging voltages: always use a charger with a GEL mode so as not to damage the electrolyte. ### Shipping, delivery and returns Orders placed **before [[ks:cutoff]]** with the battery in stock ship the same day. Delivery in mainland Spain and Portugal takes 24-48 working hours; for the Balearic and Canary Islands and the rest of the European Union allow 3 to 5 working days. You have **[[ks:return_days]] 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 LG17-12 model a gel battery? Where is it used? Yes, this model is a GEL battery: sealed lead-acid where the electrolyte is in gel form. It tolerates deep discharges very well and is ideal for cyclic use (solar, motorhomes, electric wheelchairs, motorcycles). Requires a GEL-specific smart charger β€” max charge voltage ~14.1 V (vs 14.4-14.7 V for AGM). Lifespan 6-10 years. ### How is the Long LG17-12 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 LG17-12 battery last? Expected lifespan of the Long LG17-12 is 6 to 10 years in cyclic use (marine, caravan, solar) with controlled discharges. 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 LG17-12 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. ### Which batteries are equivalent to the Long LG17-12? 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. ## Equivalent batteries - [EXIDE AGM12-18](https://baterias.com/gb/battery-exide-agm12-18-12v-18ah-250a) - [EXIDE GEL12-19](https://baterias.com/gb/battery-exide-gel12-19-12v-19ah-170a) - [MK POWERED ES22-12](https://baterias.com/gb/battery-mk-es22-12-agm-12v-22ah) - [EXIDE 12Y16A-3A](https://baterias.com/gb/battery-exide-12y16a-3a-12v-20ah-210a) ## 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· 2026-09-28*