Long WP14-12SE · Wheelchair battery 12V 14Ah AGM
Specifications
| Brand | LONG |
|---|---|
| Part number | WP14-12SE |
| Voltage (V) | 12 |
| Capacity (C20) | 14Ah (c20) |
| Capacity (C5) | 11.9Ah (c5) |
| Technology | AGM |
| Length | 151.00 cm |
| Width | 98.00 cm |
| Height | 100.00 cm |
Long WP14-12SE 12V 14Ah 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 wearhandles deep discharges without losing capacity
- Sealed AGM/GELno maintenance, no risk of spills
- Thousands of useful cyclesover its full lifetime

Mobility battery Long WP14-12SE WP Series 14Ah 12V
Designed for power wheelchairs, mobility scooters and light electric vehicles, the Long WP14-12SE from the WP Series range offers 14 Ah of deep-cycle capacity with AGM technology. It measures 151 × 98 × 100 mm, the format sought by anyone replacing a 14 Ah battery in power wheelchairs and mobility scooters.
- Designed to be discharged and recharged daily without losing capacity.
- AGM technology: absorbed electrolyte, no spills, can be mounted at an angle.
- Standard replacement format for wheelchairs and scooters.
- Thousands of useful cycles over its lifetime.
What the Long WP14-12SE is for
The Long WP14-12SE 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 4.04 kg.
Dimensions, polarity and mounting
The Long WP14-12SE is made in the 151 × 98 × 100 mm format and weighs 4.04 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 WP14-12SE: WP Series range and AGM technology
Within the Long catalogue, the WP Series series groups the references designed for this use. The WP14-12SE is the 14 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.
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.
Official warranty
The Long WP14-12SE 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
Same-day dispatch from our warehouse for in-stock orders placed before 6:00 pm: 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 14 days if the battery has not been used (free collection on the Iberian mainland). You will receive tracking by email.
Codes and references Long WP14-12SE
| Brand | Long |
|---|---|
| Manufacturer range | WP Series |
| Manufacturer part number (MPN) | WP14-12SE |
| Also known as | WP1412SE · WP14 12SE |
| EAN-13 barcode | 4260030441754 |
| Dimensions (length × width × height) | 151 × 98 × 100 mm (151x98x100) |
Recommended accessories
Frequently asked questions
Is the WP14-12SE model AGM? What does this technology offer?
Yes. The WP14-12SE 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 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 — 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 WP14-12SE battery last?
Expected lifespan of the Long WP14-12SE 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 WP14-12SE model?
Dimensions (length × width × height) are 151×98×100 mm — also written as 151x98x100 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.
Which batteries are equivalent to the Long WP14-12SE?
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.
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