# Wheelchair battery Long LGK75-12N 12V 75Ah GEL ![Wheelchair battery Long LGK75-12N 12V 75Ah GEL](https://baterias.com/1193-home_default/battery-long-lgk75-12n-12v-75ah.jpg) > Long LGK75-12N wheelchair battery 12V 75Ah GEL. LG Series range. Dimensions 260×170×207 mm, + terminal on the left. For daily wheelchair use. **Category:** [Power Wheelchair Batteries](https://baterias.com/gb/batteries-for-electric-wheelchairs) → [LONG](https://baterias.com/gb/long) - **Canonical URL**: https://baterias.com/gb/battery-long-lgk75-12n-12v-75ah - **Language**: en-GB - **Brand**: LONG - **Reference**: BCOM-LONG-LGK75-12N - **EAN**: 8404655001405 - **MPN**: LGK75-12N - **Price**: 190,70 € (VAT incl., Spain) - **Last updated**: 2026-10-28 - **Stock**: In stock ## Technical specifications | Feature | Value | |---|---| | Brand | LONG | | Reference | LGK75-12 N | | Model | LG Series | | Voltage (V) | 12 V | | Largo | 260 cm | | Ancho | 170 cm | | Alto | 207 cm | | Peso | 24.8 kg | | Tecnología | GEL | | Terminal layout | Positive terminal on the left | | Capacity (C20) | 75 Ah (c20) | | Capacity (C5) | 63.75 Ah (c5) | ## Quick description **Long LGK75-12N 12V 75Ah** 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 🔌 Voltage 12 V ⚡ Capacity 75 Ah C20 📏 Dimensions 260×170×207 mm ⚙️ Technology GEL 🧭 Polarity Positive on the left ⚖️ Weight 24,8 kg 🏷️ Model LG Series ## Description ## Mobility battery Long LGK75-12N LG Series 75Ah 12V 12*V* Voltage 75*Ah* Capacity 24.80*kg* Weight The **Long LGK75-12N** with GEL technology delivers **75 Ah** at **12 V** with the cycle life that power wheelchairs, mobility scooters and light electric vehicles demand. Measuring 260 × 170 × 207 mm and the positive terminal on the left, it is the direct replacement for power wheelchairs and mobility scooters fitted from the factory with a 75 Ah battery of this format. - GEL: excellent resistance to deep discharge and long cycle life. - Sealed AGM/GEL: safe indoors and in transport. - No maintenance, no water top-ups. - Approved for air and sea transport (VRLA). ### What the Long LGK75-12N is for With 75 Ah, the Long LGK75-12N 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 24.80 kg. ### The Long LGK75-12N: LG Series range and GEL technology Within the Long catalogue, the **LG Series** series groups the references designed for this use. The LGK75-12N is the 75 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. ### Size, terminals and hold-down of the Long LGK75-12N It has external dimensions of 260 × 170 × 207 mm and weighs 24.80 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. Checking the three dimensions and the terminal position before buying avoids the most common mistake when replacing a battery. ### 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. ### How to make it last longer Recharge the wheelchair or scooter after each use and do not leave it discharged for days: lead sulphates and loses capacity. GEL batteries need lower charging voltages: always use a charger with a GEL mode so as not to damage the electrolyte. ### Warranty and coverage The Long LGK75-12N 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. ### Shipping, delivery and returns Order **before 6:00 pm** 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 **14 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 LGK75-12N 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 — max charge voltage ~14.1 V (vs 14.4-14.7 V for AGM). Lifespan 6-10 years. ### How do I fit the LGK75-12N 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 (−) 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 — with positive on the left match the polarity shown on the product sheet; 6) connect the positive (+) first, then the negative (−). 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 LGK75-12N battery last? Expected lifespan of the Long LGK75-12N 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 dimensions of the Long LGK75-12N battery? Dimensions (length × width × height) are 260×170×207 mm — also written as 260x170x207 mm — 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 polarity does the Long LGK75-12N battery have? Polarity: positive on the left. To identify it, place the battery in front of you with the terminals facing you and check which side the positive (+, marked with a red ring) is on. Before buying, verify the polarity matches your current battery: switching polarity forces longer cables or system reconfiguration, with short-circuit risk. ### Which batteries are equivalent to the Long LGK75-12N? 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 — 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 — automotive battery specialists since 2012. → https://baterias.com/gb/technical-team --- *baterias.com — Automotive batteries · 2026-10-28*