Long WP40-12NE · Wheelchair battery 12V 40Ah AGM
Specifications
| Brand | LONG |
|---|---|
| Part number | WP40-12NE |
| Voltage (V) | 12 |
| Capacity (C20) | 40Ah (c20) |
| Capacity (C5) | 34Ah (c5) |
| Technology | AGM |
| Length | 197.70 cm |
| Width | 166.00 cm |
| Height | 171.00 cm |
Long WP40-12NE 12V 40Ah 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 WP40-12NE WP Series 40Ah 12V
The Long WP40-12NE with AGM technology delivers 40 Ah at 12 V with the cycle life that power wheelchairs, mobility scooters and light electric vehicles demand. Measuring 197 × 166 × 171 mm, it is the direct replacement for power wheelchairs and mobility scooters fitted from the factory with a 40 Ah battery of this format.
- AGM: faster recharging and better cycle resistance than a conventional battery.
- Sealed AGM/GEL: safe indoors and in transport.
- No maintenance, no water top-ups.
- Approved for air and sea transport (VRLA).
What the Long WP40-12NE is for
The Long WP40-12NE is the usual replacement in power wheelchairs, mobility scooters and light electric vehicles. Recharge after each use and avoid leaving it discharged for days. Check that it matches your current battery in dimensions, terminals and hold-down: this reference has a weight of 13.04 kg.
Will it fit your current battery tray?
In terms of format, the Long WP40-12NE measures 197 × 166 × 171 mm (length × width × height) and weighs 13.04 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 WP40-12NE: WP Series range and AGM technology
The WP Series is the Long range the WP40-12NE belongs to: it shares the same construction and quality criteria with the rest of the series, and varies in capacity and format to suit each vehicle.
AGM means the acid is held in a glass mat instead of floating free. That is why the battery can be installed in the cabin without gases, survives more cycles and recovers its charge quickly.
Long: the maker behind the WP40-12NE
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.
Warranty and coverage
The Long WP40-12NE 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.
When you get it and how to return it
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.
Comparison: Long WP40-12NE vs equivalents
The Long WP40-12NE is interchangeable with these equivalent references: WP50-12NE (Long).
| Product | Specifications | Technology | Price |
|---|---|---|---|
|
|
12V 40Ah | AGM | €154.40 |
|
|
12V 50Ah | AGM | €100.80 |
Equivalences verified by our technical team: same dimensions, polarity, capacity and CCA. Official manufacturer warranty on every option.
Recommended accessories
Frequently asked questions
Is the Long WP40-12NE an AGM battery and what are the benefits of AGM?
Yes. The WP40-12NE 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 WP40-12NE 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 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.
What is the service life of the WP40-12NE model?
Expected lifespan of the Long WP40-12NE 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 size is this battery?
Dimensions (length × width × height) are 198×166×171 mm — also written as 198x166x171 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 interchangeable batteries are there for this one?
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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