Long WP40-12E WP Series · Wheelchair battery 40Ah AGM
Specifications
| Brand | LONG |
|---|---|
| Part number | WP40-12E |
| Voltage (V) | 12 |
| Capacity (C20) | 40Ah (c20) |
| Capacity (C5) | 34Ah (c5) |
| Technology | AGM |
| Length | 197.7 mm |
| Width | 166 mm |
| Height | 171 mm |
Long WP40-12E 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
Where it fits: the Long WP40-12E is one of our power wheelchair batteries, belongs to our Long batteries and by capacity it sits among our 40Ah batteries.
The Long WP40-12E in practice
WP40-12E vs Long WP50-12N
The Long WP40-12E offers 40 Ah and 0 A cold cranking in a 198 × 166 × 171 mm case. The Long WP50-12N, same brand and technology, goes up to 50 Ah and 0 A with 1 mm more length and costs €7.52 less. The difference shows on diesels and in hard winters; for a daily-driven petrol car the extra is not needed.

Mobility battery Long WP40-12E WP Series 40Ah 12V
The Long WP40-12E 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).
Dimensions, polarity and mounting
In terms of format, the Long WP40-12E measures 197 × 166 × 171 mm (length × width × height) and weighs 13.05 kg. Checking the three dimensions and the terminal position before buying avoids the most common mistake when replacing a battery.
What the Long WP40-12E is for
The Long WP40-12E 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 13.05 kg.
The Long WP40-12E: WP Series range and AGM technology
The WP40-12E is part of the Long WP 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 an AGM battery the electrolyte is absorbed in glass-fibre separators: there is no free liquid, it cannot spill and it can be mounted at an angle. That construction lowers internal resistance, speeds up recharging and multiplies cycle life compared with a conventional battery.
What Long does differently
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. All the Long batteries in our catalogue are genuine product, recently manufactured and covered by the manufacturer's warranty.
Warranty and coverage
The Long WP40-12E 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.
Delivery times and returns
Same-day dispatch from our warehouse for in-stock orders placed before 6:00 pm: 1 to 2 working days in mainland Spain and 1 to 3 working days in mainland Portugal, 1 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.
Long WP40-12E: alternatives with the same dimensions
Batteries from our catalogue with the same dimensions, voltage and technology as the Long WP40-12E and a similar capacity, sorted by sales. They are not manufacturer-approved equivalents: check the polarity and capacity of your original battery.
| Product | Specifications | Technology | Price | |||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Long
WP40-12E
This battery
|
12V 40Ah | AGM | 154,40 € | |||||||||||||||||||||
Long
WP40-12NE
Same size |
12V 40Ah | AGM | 154,40 € same price | |||||||||||||||||||||
| ||||||||||||||||||||||||
| WP40-12E | WP40-12NE | |
|---|---|---|
| Capacity | 40 Ah | 40 Ah |
| Cold cranking (EN) | — | — |
| Technology | AGM | AGM |
| Dimensions (mm) | 198 × 166 × 171 | 198 × 166 × 171 |
| Positive terminal | — | — |
| Price | 154,40 € | 154,40 € |
Long
WP40-12
Same size Long WP40-12E vs Long WP40-12
Same size · same price
It has the same dimensions, voltage and technology as the WP40-12E, although it is not a manufacturer-approved equivalent. Compared with the WP40-12E it has the same Ah and cranking power. It costs the same. Check the positive terminal side and the original capacity before ordering; otherwise it is a straight swap.
| WP40-12E | WP40-12 | |
|---|---|---|
| Capacity | 40 Ah | 40 Ah |
| Cold cranking (EN) | — | — |
| Technology | AGM | AGM |
| Dimensions (mm) | 198 × 166 × 171 | 198 × 166 × 171 |
| Positive terminal | — | — |
| Price | 154,40 € | 154,40 € |
Long
WP40-12N
Same size Long WP40-12E vs Long WP40-12N
Same size · same price
It has the same dimensions, voltage and technology as the WP40-12E, although it is not a manufacturer-approved equivalent. Compared with the WP40-12E it has the same Ah and cranking power. It costs the same. Check the positive terminal side and the original capacity before ordering; otherwise it is a straight swap.
| WP40-12E | WP40-12N | |
|---|---|---|
| Capacity | 40 Ah | 40 Ah |
| Cold cranking (EN) | — | — |
| Technology | AGM | AGM |
| Dimensions (mm) | 198 × 166 × 171 | 198 × 166 × 171 |
| Positive terminal | — | — |
| Price | 154,40 € | 154,40 € |
MK Powered
M40-12 SLD M
Same size Long WP40-12E vs MK Powered M40-12 SLD M
Same size · −27,50 €
It has the same dimensions, voltage and technology as the WP40-12E, although it is not a manufacturer-approved equivalent. Compared with the WP40-12E it has 5 Ah more. It costs 27,50 € less. Check the positive terminal side and the original capacity before ordering; otherwise it is a straight swap.
| WP40-12E | M40-12 SLD M | |
|---|---|---|
| Capacity | 40 Ah | 45 Ah |
| Cold cranking (EN) | — | — |
| Technology | AGM | AGM |
| Dimensions (mm) | 198 × 166 × 171 | 198 × 166 × 171 |
| Positive terminal | — | — |
| Price | 154,40 € | 126,90 € |
MK Powered
M45-12 SLD M
Same size Long WP40-12E vs MK Powered M45-12 SLD M
Same size · −4,90 €
Same case and same technology as the WP40-12E: an alternative by size, not an official equivalent. Compared with the WP40-12E it has 5 Ah more. It costs 4,90 € less. If the polarity matches and your equipment had a similar capacity, it works as a replacement; if in doubt, ask us with your model.
| WP40-12E | M45-12 SLD M | |
|---|---|---|
| Capacity | 40 Ah | 45 Ah |
| Cold cranking (EN) | — | — |
| Technology | AGM | AGM |
| Dimensions (mm) | 198 × 166 × 171 | 199 × 166 × 171 |
| Positive terminal | — | — |
| Price | 154,40 € | 149,50 € |
Automatic selection by dimensions (±3 mm), voltage, technology and capacity (−10 % / +20 %). Official manufacturer warranty on every option.
Other 40Ah batteries: We stock 23 models of 40 Ah to compare by price, technology and cold cranking: see all 40Ah batteries. Same size (198 × 166 × 171 mm): batteries of 198 × 166 × 171 mm.
Recommended accessories
Frequently asked questions
Is the Long WP40-12E an AGM battery and what are the benefits of AGM?
Yes. AGM (Absorbent Glass Mat) technology, 40 Ah and 12 V: sealed lead-acid, with the electrolyte held in glass fibre. It tolerates heat better and handles more cycles than a conventional battery.
What are the dimensions of the Long WP40-12E battery?
Check the room available in your device, because a single millimetre too much can stop the clamp from closing. Its dimensions are 198×166×171 mm, also written 198x166x171 mm; the height already includes the terminals.
Long WP40-12E or Long WP40-12NE: which one to choose?
Same case and same technology as the WP40-12E: an alternative by size, not an official equivalent. Compared with the WP40-12E it has the same Ah and cranking power. It costs the same. If the polarity matches and your equipment had a similar capacity, it works as a replacement; if in doubt, ask us with your model.
Long WP40-12E or Long WP40-12: which one to choose?
It has the same dimensions, voltage and technology as the WP40-12E, although it is not a manufacturer-approved equivalent. Compared with the WP40-12E it has the same Ah and cranking power. It costs the same. Check the positive terminal side and the original capacity before ordering; otherwise it is a straight swap.
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