# Deep-cycle battery Sonnenschein GF12065Y 12V 78Ah GEL

![Deep-cycle battery Sonnenschein GF12065Y 12V 78Ah GEL](https://baterias.com/4412-home_default/battery-sonnenschein-gf12065y-12v-78ah.jpg)

> Sonnenschein GF12065Y deep-cycle battery 12V 78Ah GEL. Designed for deep discharges (80% DOD); ideal for solar, marine, caravan. 24-48 h delivery (mainland ES/PT).

**Category:** [Mobility Vehicle Batteries](https://baterias.com/gb/batteries-for-mobility-vehicles) → [Sonnenschein](https://baterias.com/gb/sonnenschein)

- **Canonical URL**: https://baterias.com/gb/battery-sonnenschein-gf12065y-12v-78ah
- **Language**: en-GB
- **Brand**: Sonnenschein
- **Reference**: BATERIAS-SONNENSCHEIN-GF12065Y
- **EAN**: 3660766462930
- **MPN**: GF12065Y
- **Price**: 390,10 € (VAT incl., Spain)
- **Last updated**: 2026-10-28
- **Stock**: Out of stock

## Technical specifications

| Feature | Value |
|---|---|
| Peso | 27,00 kg |
| Tecnología | GEL |
| Terminal type | AP |
| Capacity (C20) | 78 Ah (c20) |
| Voltage (V) | 12 V |
| Capacity | 78 Ah |

## Quick description

**Sonnenschein GF12065Y 12V 78Ah** is a deep-cycle battery optimised for repeated discharges down to 80 % DOD and thousands of life cycles. Ideal when the battery discharges and recharges daily rather than just cranking the engine (mobility scooters, backup systems, golf, pallet trucks).

## Why this deep-cycle battery?

- **Daily cycling without wear** handles deep discharges without losing capacity
- **Sealed AGM/GEL** no maintenance, no risk of spills
- **Thousands of useful cycles** over its full lifetime

🔌 Voltage
12 V

⚡ Capacity
78 Ah C20

📏 Dimensions
353×175×190 mm

⚙️ Technology
Gel

⚖️ Weight
27 kg

🏷️ Model
GEL - GF -Y Sonnenschein Cyclic range 450 cycles

## Description

## Mobility battery Sonnenschein GF12065Y 78Ah 12V

12*V* Voltage
78*Ah* Capacity
27*kg* Weight

The **Sonnenschein GF12065Y** with GEL technology delivers **78 Ah** at **12 V** with the cycle life that power wheelchairs, mobility scooters and light electric vehicles demand. Its 353 × 175 × 190 mm make it the exact replacement for the 78 Ah battery fitted as standard to many power wheelchairs and mobility scooters.
- Sealed AGM/GEL: safe indoors and in transport.
- GEL: excellent resistance to deep discharge and long cycle life.
- Approved for air and sea transport (VRLA).
- No maintenance, no water top-ups.

### What the Sonnenschein GF12065Y is for

The Sonnenschein GF12065Y 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 27 kg and AP terminals.

### Size, terminals and hold-down of the Sonnenschein GF12065Y

In terms of format, the Sonnenschein GF12065Y measures 353 × 175 × 190 mm (length × width × height) and weighs 27 kg. It uses AP terminals, the system that anchors and connects it in the vehicle. Before replacing it, measure your current battery tray: if all three dimensions and the terminal positions match, the swap is direct and needs no adapters.

### Technology inside the Sonnenschein GF12065Y

Within the Sonnenschein catalogue, the GF12065Y is the 78 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.

### What Sonnenschein does differently

Sonnenschein batteries with dryfit® technology have equipped power wheelchairs, cleaning machines and industrial vehicles for decades thanks to their reliability and cycle life. All the Sonnenschein batteries in our catalogue are genuine product, recently manufactured and covered by the manufacturer's warranty.

### Official warranty

The Sonnenschein GF12065Y 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. GEL batteries need lower charging voltages: always use a charger with a GEL mode so as not to damage the electrolyte.

### Delivery times 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 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.

## Frequently asked questions

### Is the Sonnenschein GF12065Y a GEL battery? What is GEL used for?

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.

### What are the dimensions of the Sonnenschein GF12065Y battery?

Dimensions (length × width × height) are 353×175×190 mm — also written as 353x175x190 mm and correspond to the European L5 case size — 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.


## Technical team (editorial authorship)

The FAQs, guides and comparisons on this site are reviewed by the baterias.com technical team — automotive battery specialists since 2012.

→ https://baterias.com/gb/technical-team

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*baterias.com — Automotive batteries · 2026-10-30*