Deka 8G22NF · Wheelchair battery 12V 51Ah GEL
Specifications
| Brand | DEKA |
|---|---|
| Part number | 8G22NF |
| Voltage (V) | 12 |
| Capacity (C20) | 51Ah (c20) |
| Capacity (C10) | 47.5Ah (c10) |
| Capacity (C5) | 43.2Ah (c5) |
| Technology | GEL |
| Length | 228.30 mm |
| Width | 138.90 mm |
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4,73/5★★★★★55 reviewsVerified purchases
- ★★★★★Pedro Castillo:
Pedí la batería un lunes a las 6 y me llegó el martes a las 8
- ★★★★★Marcos Nieto:
Esta web es genial. Y los profesionales que están del otro lado te ayudan y asesoran en lo que necesites.
- ★★★★David Castillo:
Buena experiencia comprando en esta web. Mi DEKA 8G22NF me llego al día siguiente de pedirla. Todo ok
Deka 8G22NF 12V 51Ah 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
Voltage
12 V
Capacity
51 Ah
Dimensions
228×138×235 mm
Technology
GEL
Weight
17,01 kg
Model
DEKA GEL
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Mobility battery Deka 8G22NF 51Ah 12V
12VVoltage
51AhCapacity
17.01kgWeight
The Deka 8G22NF with GEL technology delivers 51 Ah at 12 V with the cycle life that power wheelchairs, mobility scooters and light electric vehicles demand. Its 228 × 138 × 235 mm make it the exact replacement for the 51 Ah battery fitted as standard to many power wheelchairs and mobility scooters.
- Approved for air and sea transport (VRLA).
- No maintenance, no water top-ups.
- Sealed AGM/GEL: safe indoors and in transport.
- GEL: excellent resistance to deep discharge and long cycle life.
What the Deka 8G22NF is for
The Deka 8G22NF 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 17.01 kg.
Will it fit your current battery tray?
In terms of format, the Deka 8G22NF measures 228 × 138 × 235 mm (length × width × height) and weighs 17.01 kg. Checking the three dimensions and the terminal position before buying avoids the most common mistake when replacing a battery.
Deka: the maker behind the 8G22NF
Deka (East Penn Manufacturing) is the largest single-site lead battery manufacturer in the United States, with full control of the process from lead recycling to the finished battery. We guarantee that every Deka arrives new, charged and with the manufacturer's full warranty.
Technology inside the Deka 8G22NF
Within the Deka catalogue, the 8G22NF is the 51 Ah model designed for this application.
A GEL battery is the choice when cycle resistance and safety matter most: no gases, no liquid and thousands of partial discharges in its lifetime.
Care and maintenance
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.
Official warranty
The Deka 8G22NF 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
Orders placed before 6:00 pm with the battery in stock ship the same day. Delivery in mainland Spain and Portugal takes 24-48 working hours; for the Balearic and Canary Islands and the rest of the European Union allow 3 to 5 working days. You have 14 days to return an unused battery; in mainland Spain and Portugal collection is free. We email you the tracking number as soon as the parcel ships.
BCOM-DEKA-8G22NF
Data sheet
- Brand
- DEKA
- Reference
- 8G22NF
- Model
- DEKA GEL
- Voltage (V)
- 12
- Length
- 228.30 mm
- Width
- 138.90 mm
- Height
- 235.20 mm
- Weight
- 17.01 Kgs
- Technology
- GEL
- Capacity (C20)
- 51Ah (c20)
- Capacity (C10)
- 47.5Ah (c10)
- Capacity (C5)
- 43.2Ah (c5)
Specific References
- UPC
- 083996009462
- MPN
- 8G22NF
4,73/5
Verified purchasesLatest verified reviews
★★★★★Pedro Castillo
04/06/2026Llegó en 2 días pero todo bien
Pedí la batería un lunes a las 6 y me llegó el martes a las 8
★★★★★Marcos Nieto
25/01/2026Atención telefónica ideal
Esta web es genial. Y los profesionales que están del otro lado te ayudan y asesoran en lo que necesites.
★★★★★David Castillo
20/01/2026Recomiendo comprar aquí
Buena experiencia comprando en esta web. Mi DEKA 8G22NF me llego al día siguiente de pedirla. Todo ok
★★★★★Carlos Cano
08/01/2026Muy buen servicio
Gracias por tan buen servicio, necesitamos mas gente que te atienda asi de bien
★★★★★Daniel Arias
23/10/2025Me llegó al día siguiente
Pedí la bateria un lunes a las 7 y me llegó el martes a las 6
Recommended accessories
How to change the battery
Guide to replace a cyclic battery (12V 4-30Ah) for UPS, mobility scooter, alarm or backup device. Estimated time 10-15 minutes. Important: discharge residual voltage before handling.
Step 1. Power off and unplug the device
Unplug the device (UPS, scooter, alarm) and leave it off for at least 30 seconds to discharge residual capacitor voltage. Work on an insulating surface.
Step 2. Locate the battery compartment
Usually under the seat (mobility scooter/wheelchair), in the rear module of the UPS, or behind a side panel with screws. Check the device manual for unusual models.
Step 3. Disconnect the negative (−) first
With insulated gloves, remove the negative (−) cable first. Some UPS have protection fuses — note their position before removing.
Step 4. Disconnect the positive (+) terminal
Repeat with the positive cable (red, marked +). Important: never let a terminal touch metal of the car while the other is still connected.
Step 5. Remove the old battery
Typical weight 1-15 kg depending on capacity. Many cyclic batteries are AGM/GEL — keep them upright. Do NOT invert the battery: even sealed, residue may exist.
Step 6. Fit the new battery
Same orientation and type (AGM, GEL or flooded). Polarity must match the device, not a chassis (this is not a car). Make sure terminals do not touch metal parts of the compartment.
Step 7. Connect the positive (+) first
On cyclic devices the order is reversed compared to cars: positive (+) first, negative (−) afterwards. Tighten without forcing — the plastic terminal housing of cyclic batteries damages easily.
Step 8. Initial charge before first use
Cyclic batteries ship at 60-80%. Before first use, connect the device charger for 8-12 hours (or use an AGM/GEL smart charger if available). This avoids short cycles and extends lifespan.
Frequently asked questions
Is the 8G22NF 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 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 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 (−) 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 8G22NF model?
Expected lifespan of the Deka 8G22NF 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 Deka 8G22NF battery?
Dimensions (length × width × height) are 228×139×235 mm — also written as 228x139x235 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 Deka 8G22NF?
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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