# Deep-cycle battery Sonnenschein GF12033YG1 12V 38Ah GEL

![Deep-cycle battery Sonnenschein GF12033YG1 12V 38Ah GEL](https://baterias.com/4401-home_default/battery-sonnenschein-gf12033yg1-12v-38ah.jpg)

> Sonnenschein GF12033YG1 deep-cycle battery 12V 38Ah 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-gf12033yg1-12v-38ah
- **Language**: en-GB
- **Brand**: Sonnenschein
- **Reference**: BATERIAS-SONNENSCHEIN-GF12033YG1
- **EAN**: 3660766479044
- **MPN**: GF12033YG1
- **Price**: 234,40 € (VAT incl., Spain)
- **Last updated**: 2026-10-28
- **Stock**: Out of stock

## Technical specifications

| Feature | Value |
|---|---|
| Peso | 15,00 kg |
| Tecnología | GEL |
| Terminal type | F4 |
| Capacity (C20) | 38 Ah (c20) |
| Voltage (V) | 12 V |
| Capacity | 38 Ah |

## Quick description

**Sonnenschein GF12033YG1 12V 38Ah** is a deep-cycle battery built to be discharged and recharged daily without losing capacity. Its reinforced grid and AGM/GEL separator extend the number of useful cycles well beyond a conventional starter battery.

## 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
38 Ah C20

📏 Dimensions
210×175×175 mm

⚙️ Technology
Gel

⚖️ Weight
15 kg

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

## Description

## Mobility battery Sonnenschein GF12033YG1 38Ah 12V

12*V* Voltage
38*Ah* Capacity
15*kg* Weight

The **12 V**, **38 Ah** **Sonnenschein GF12033YG1** with GEL technology is the standard replacement for power wheelchairs, mobility scooters and light electric vehicles. Measuring 210 × 175 × 175 mm, it is the direct replacement for power wheelchairs and mobility scooters fitted from the factory with a 38 Ah battery of this format.
- No maintenance, no water top-ups.
- Approved for air and sea transport (VRLA).
- GEL: excellent resistance to deep discharge and long cycle life.
- Sealed AGM/GEL: safe indoors and in transport.

### What the Sonnenschein GF12033YG1 is for

The Sonnenschein GF12033YG1 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 15 kg and F4 terminals.

### Technology inside the Sonnenschein GF12033YG1

The GF12033YG1 is one of the Sonnenschein references for this type of use; it shares the same manufacturing and quality-control criteria as the rest of the brand's catalogue.
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.

### Dimensions, polarity and mounting

It has external dimensions of 210 × 175 × 175 mm and weighs 15 kg. It uses F4 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.

### What Sonnenschein does differently

Sonnenschein (EnerSys) invented the dryfit® GEL battery: the world reference in gel batteries for electric mobility, light traction and applications that demand safety and intensive cycling. We guarantee that every Sonnenschein arrives new, charged and with the manufacturer's full warranty.

### How to make it last longer

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.

### Warranty and coverage

The Sonnenschein GF12033YG1 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.

### When you get it and how to return it

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.

## Frequently asked questions

### Is the Sonnenschein GF12033YG1 a GEL battery? What is GEL used for?

Yes, GEL technology (38 Ah): a sealed lead-acid battery whose electrolyte is in gel form. Take care when charging: it requires a smart charger with a GEL mode, because it accepts a lower charge voltage than an AGM. Deep discharges are its strong point, so it suits cyclic use: solar, motorhomes, electric wheelchairs or motorcycles.

### What are the dimensions of the Sonnenschein GF12033YG1 battery?

Length × width × height: 210x175x175 mm (LB1 case). Height is measured to the top of the terminals. Measure your device's battery tray first; if the battery exceeds it by even a millimetre, the hold-down clamp may not close.

### Sonnenschein GF12033YG1 or Sonnenschein GF12033Y1: which one to choose?

Same case and same technology as the GF12033YG1: an alternative by size, not an official equivalent. Compared with the GF12033YG1 it has the same Ah and cranking power. It costs 6,45 € 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.

### Sonnenschein GF12033YG1 or Sonnenschein GF12033YG2: which one to choose?

It has the same dimensions, voltage and technology as the GF12033YG1, although it is not a manufacturer-approved equivalent. Compared with the GF12033YG1 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.


## 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 · 2026-11-08*