Deka GC25 · Wheelchair battery 6V 235Ah
Specifications
| Brand | DEKA |
|---|---|
| Part number | GC25 |
| Voltage (V) | 6 |
| Capacity (C20) | 235Ah (c20) |
| Technology | Lead-acid |
| Length | 260.40 mm |
| Width | 181.10 mm |
| Height | 276.40 mm |
| Weight | 30.84 Kgs |
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4,75/5★★★★★51 reviewsVerified purchases
- ★★★★★Julian Santana:
Hice el pedido de la batería un martes a las 6 y me llegó el miércoles a las 1
- ★★★★★Ricardo Caballero:
En general todo bien
- ★★★★★Josep Pascual:
Ya me había quedado con esta web por la variedad de sus productos, pero es que he llamado para unas dudas que tenía y me han atendido de…
Deka GC25 6V 235Ah is a sealed AGM/GEL battery for daily mobility use: maintenance-free, no risk of spills, and thousands of useful cycles well beyond a starter battery.
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
6 V
Capacity
235 Ah
Dimensions
260×181×276 mm
Technology
Lead-acid
Weight
30,84 kg
Model
DEKA PLOMO/ACIDO
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Mobility battery Deka GC25 235Ah 6V
6VVoltage
235AhCapacity
30.84kgWeight
Designed for power wheelchairs, mobility scooters and light electric vehicles, the Deka GC25 offers 235 Ah of deep-cycle capacity with conventional lead-acid technology. Its 260 × 181 × 276 mm make it the exact replacement for the 235 Ah battery fitted as standard to many power wheelchairs and mobility scooters.
- Sealed AGM/GEL: safe indoors and in transport.
- Good balance of capacity, cranking power and price.
- Approved for air and sea transport (VRLA).
- No maintenance, no water top-ups.
What the Deka GC25 is for
With 235 Ah, the Deka GC25 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 30.84 kg.
Dimensions, polarity and mounting
In terms of format, the Deka GC25 measures 260 × 181 × 276 mm (length × width × height) and weighs 30.84 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.
Technology inside the Deka GC25
Within the Deka catalogue, the GC25 is the 235 Ah model designed for this application.
Conventional lead-acid is the benchmark against which other technologies are compared: good cranking current, great tolerance to alternator charging and the best price per amp-hour.
Why choose Deka batteries
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.
Warranty and coverage
The Deka GC25 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
Recharge the wheelchair or scooter after each use and do not leave it discharged for days: lead sulphates and loses capacity. On batteries with filler caps, check the electrolyte level and top up only with distilled water.
Delivery times 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.
BCOM-DEKA-GC25
Data sheet
- Brand
- DEKA
- Reference
- GC25
- Model
- DEKA Lead-acid
- Voltage (V)
- 6
- Length
- 260.40 mm
- Width
- 181.10 mm
- Height
- 276.40 mm
- Weight
- 30.84 Kgs
- Technology
- Lead-acid
- Capacity (C20)
- 235Ah (c20)
Specific References
- UPC
- 083996040663
- MPN
- GC25
4,75/5
Verified purchasesLatest verified reviews
★★★★★Julian Santana
21/05/2026Recibí la batería en 1 día
Hice el pedido de la batería un martes a las 6 y me llegó el miércoles a las 1
★★★★★Ricardo Caballero
16/02/2026Todo bien
En general todo bien
★★★★★Josep Pascual
04/01/2026Me encanta su disposición
Ya me había quedado con esta web por la variedad de sus productos, pero es que he llamado para unas dudas que tenía y me han atendido de maravilla.
★★★★★Josep Dominguez
02/01/2026Super bien el servicio
Precios buenos y un gran servicio. 100% recomendado
★★★★★Raul Hidalgo
31/10/2025Entrega rápida de la batería
Hice el pedido de la bateria un martes a las 6 y me llegó el miércoles a las 2
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
How is the Deka GC25 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 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.
How long does the Deka GC25 battery last?
Expected lifespan of the Deka GC25 is 4 to 6 years in regular device use without 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 dimensions of the Deka GC25 battery?
Dimensions (length × width × height) are 260×181×276 mm — also written as 260x181x276 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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