# Wheelchair battery Long LG12-12 12V 12Ah GEL ![Wheelchair battery Long LG12-12 12V 12Ah GEL](https://baterias.com/1179-home_default/battery-long-lg12-12-12v-12ah.jpg) > Long LG12-12 wheelchair battery 12V 12Ah GEL. LG Series range. Dimensions 151Γ—98Γ—98 mm, + terminal on the left. 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-lg12-12-12v-12ah - **Language**: en-GB - **Brand**: LONG - **Reference**: BCOM-LONG-LG12-12 - **MPN**: LG12-12 - **Stock**: Out of stock ## Technical specifications | Feature | Value | |---|---| | Brand | LONG | | Reference | LG12-12 | | Model | LG Series | | Voltage (V) | 12 V | | Largo | 151 cm | | Ancho | 98 cm | | Alto | 98 cm | | Peso | 4 kg | | TecnologΓ­a | GEL | | Terminal layout | Positive terminal on the left | | Capacity (C20) | 12 Ah (c20) | | Capacity (C5) | 10.2 Ah (c5) | ## Quick description **Long LG12-12 12V 12Ah** 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 12 Ah C20 πŸ“ Dimensions 151Γ—98Γ—98 mm βš™οΈ Technology GEL 🧭 Polarity Positive on the left βš–οΈ Weight 4 kg 🏷️ Model LG Series ## Description ## Mobility battery Long LG12-12 LG Series 12Ah 12V 12*V* Voltage 12*Ah* Capacity 4*kg* Weight The **12 V**, **12 Ah** **Long LG12-12** from the **LG Series** range with GEL technology is the standard replacement for power wheelchairs, mobility scooters and light electric vehicles. It replaces the original battery without adaptation in power wheelchairs and mobility scooters with a 151 Γ— 98 Γ— 98 mm format: same 12 Ah capacity and the positive terminal on the left. - Thousands of useful cycles over its lifetime. - Standard replacement format for wheelchairs and scooters. - GEL technology: gelled electrolyte, fully sealed and maintenance-free. - Designed to be discharged and recharged daily without losing capacity. ### What the Long LG12-12 is for The Long LG12-12 is designed for power wheelchairs, mobility scooters and light electric vehicles. Wheelchairs and scooters normally use two identical batteries in series: replace them together. Check that it matches your current battery in dimensions, terminals and hold-down: this reference has a weight of 4 kg. ### Dimensions, polarity and mounting In terms of format, the Long LG12-12 measures 151 Γ— 98 Γ— 98 mm (length Γ— width Γ— height) and weighs 4 kg. The positive terminal on the left 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. ### The Long LG12-12: LG Series range and GEL technology Within the Long catalogue, the **LG Series** series groups the references designed for this use. The LG12-12 is the 12 Ah model of that family, with the same performance as its siblings in other sizes. GEL technology fixes the acid in a solid gel. That removes maintenance and leaks and gives very long cycle life, in exchange for slightly slower recharging and lower peak current than an AGM. ### Why choose Long batteries Long (Kung Long Batteries) is one of the world's largest manufacturers of sealed VRLA batteries. Its AGM and GEL series for UPS, mobility, alarms and cycling are found in equipment worldwide as original equipment. We guarantee that every Long arrives new, charged and with the manufacturer's full warranty. ### Manufacturer's warranty The Long LG12-12 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. Recharge the wheelchair or scooter after each use and do not leave it discharged for days: lead sulphates and loses capacity. ### Shipping, delivery 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 Long LG12-12 a GEL battery? What is GEL used for? 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 LG12-12 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 LG12-12 battery last? Expected lifespan of the Long LG12-12 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 size is this battery? Dimensions (length Γ— width Γ— height) are 151Γ—98Γ—98 mm β€” also written as 151x98x98 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 LG12-12? 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 AGM12-12F](https://baterias.com/gb/battery-exide-agm12-12f-12v-12ah-150a) - [TUDOR TK143](https://baterias.com/gb/battery-tudor-tk143-12v-14ah-80a) - [EXIDE EK143](https://baterias.com/gb/battery-exide-ek143-12v-14ah-80a) ## 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*