Specifications
| Brand | DEKA |
|---|---|
| Part number | 8G5SHP |
| Voltage (V) | 12 |
| Capacity (C20) | 115Ah (c20) |
| Capacity (C10) | 107Ah (c10) |
| Capacity (C5) | 96.8Ah (c5) |
| Technology | GEL |
| Length | 344.90 mm |
| Width | 171.50 mm |
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Deka 8G5SHP 12V 115Ah is a deep-cycle battery for wheelchairs and mobility scooters, optimised to be discharged and recharged daily down to 80 % DOD without losing range.

The 12 V, 115 Ah Deka 8G5SHP with GEL technology is the standard replacement for power wheelchairs, mobility scooters and light electric vehicles. Measuring 344 × 171 × 290 mm, it is the direct replacement for power wheelchairs and mobility scooters fitted from the factory with a 115 Ah battery of this format.
With 115 Ah, the Deka 8G5SHP 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 38.33 kg.
Within the Deka catalogue, the 8G5SHP is the 115 Ah model designed for this application.
GEL technology fixes the acid in a solid gel. That removes maintenance and leaks and gives very long cycle life, in exchange for slightly slower recharging and lower peak current than an AGM.
It has external dimensions of 344 × 171 × 290 mm and weighs 38.33 kg. Checking the three dimensions and the terminal position before buying avoids the most common mistake when replacing a battery.
Deka batteries are known for their robust construction and consistent quality in automotive, marine, leisure and industrial use. We guarantee that every Deka arrives new, charged and with the manufacturer's full warranty.
Use the original charger or one compatible with the battery technology (AGM/GEL) and always replace both batteries in the set together. GEL batteries need lower charging voltages: always use a charger with a GEL mode so as not to damage the electrolyte.
The Deka 8G5SHP 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.
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.
Data sheet
Specific References
Pedí la batería un lunes a las 6 y me llegó el martes a las 8
Buena experiencia comprando en esta web. Mi DEKA 8G5SHP me llego al día siguiente de pedirla. Todo ok
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.
Gracias por tan buen servicio, necesitamos mas gente que te atienda asi de bien
Pedí la bateria un lunes a las 7 y me llegó el martes a las 6
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.
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.
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.
With insulated gloves, remove the negative (−) cable first. Some UPS have protection fuses — note their position before removing.
Repeat with the positive cable (red, marked +). Important: never let a terminal touch metal of the car while the other is still connected.
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.
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.
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.
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.
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.
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.
Expected lifespan of the Deka 8G5SHP 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.
Dimensions (length × width × height) are 345×172×290 mm — also written as 345x172x290 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.
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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