Sonnenschein GF12033Y1 · Deep-cycle battery 12V 38Ah GEL
Specifications
| Brand | Sonnenschein |
|---|---|
| Part number | GF12033Y1 |
| Voltage (V) | 12V |
| Capacity (C20) | 38Ah (c20) |
| Capacity | 38Ah |
| Technology | GEL |
| Weight | 14,60 |
| Terminal type | A-Terminal |
| EAN | 3660766462848 |
€227.95
VAT included
Sonnenschein GF12033Y1 12V 38Ah 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 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
38 Ah
Dimensions
210×175×175 mm
Technology
Gel
Weight
14,6 kg
Model
GEL - GF -Y Sonnenschein Cyclic range 450 cycles
Mobility battery Sonnenschein GF12033Y1 38Ah 12V
12VVoltage
38AhCapacity
14.60kgWeight
The Sonnenschein GF12033Y1 with GEL technology delivers 38 Ah at 12 V with the cycle life that power wheelchairs, mobility scooters and light electric vehicles demand. It measures 210 × 175 × 175 mm, the format sought by anyone replacing a 38 Ah battery in power wheelchairs and mobility scooters.
- Designed to be discharged and recharged daily without losing capacity.
- GEL technology: gelled electrolyte, fully sealed and maintenance-free.
- Standard replacement format for wheelchairs and scooters.
- Thousands of useful cycles over its lifetime.
What the Sonnenschein GF12033Y1 is for
The Sonnenschein GF12033Y1 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 14.60 kg and A-Terminal terminals.
Dimensions, polarity and mounting
In terms of format, the Sonnenschein GF12033Y1 measures 210 × 175 × 175 mm (length × width × height) and weighs 14.60 kg. It uses A-Terminal terminals, the system that anchors and connects it in the vehicle. 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 Sonnenschein GF12033Y1
Within the Sonnenschein catalogue, the GF12033Y1 is the 38 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.
Why choose Sonnenschein batteries
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.
Warranty and coverage
The Sonnenschein GF12033Y1 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
GEL batteries need lower charging voltages: always use a charger with a GEL mode so as not to damage the electrolyte. Use the original charger or one compatible with the battery technology (AGM/GEL) and always replace both batteries in the set together.
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.
BATERIAS-SONNENSCHEIN-GF12033Y1
Data sheet
- Weight
- 14,60
- Technology
- GEL
- Terminal type
- A-Terminal
- Capacity (C20)
- 38Ah (c20)
- Voltage (V)
- 12V
- Capacity
- 38Ah
Specific References
- EAN13
- 3660766462848
- MPN
- GF12033Y1
Codes and references Sonnenschein GF12033Y1
| Brand | Sonnenschein |
|---|---|
| Manufacturer reference (MPN) | GF12033Y1 |
| EAN-13 barcode | 3660766462848 |
| European case size (EN 50342-2) | LB1 |
| Dimensions (length × width × height) | 210 × 175 × 175 mm (210x175x175) |
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 GF12033Y1 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.
How long does the Sonnenschein GF12033Y1 battery last?
Expected lifespan of the Sonnenschein GF12033Y1 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 measurements of the GF12033Y1 model?
Dimensions (length × width × height) are 210×175×175 mm — also written as 210x175x175 mm and correspond to the European LB1 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.
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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