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Optima YTS-5.5 · Caravan battery 12V 75Ah 975A AGM
Specifications
| Brand | OPTIMA |
|---|---|
| Part number | YTS-5.5 |
| Voltage (V) | 12 |
| Capacity (C20) | 75Ah (c20) |
| Capacity (C5) | 68Ah (c5) |
| Cold cranking amps (EN) | 975A |
| Technology | AGM ESPIRAL |
| Length | 325.00 mm |
| Width | 158.00 mm |
€261.10
VAT included
5,00/5★★★★★1 reviewsVerified purchases
- ★★★★★Francisco García P.:
bateria siempre compro la marca original este producto es exigente al arrancar el vehículo da potencia y es duradero mi vehículo tiene ya…
Reviews originally written in Spanish
See all 1 reviewsOptima YTS-5.5 12V 75Ah 975A is a battery for auxiliary services in motorhomes, caravans and campers. Powers the fridge, interior lighting, water pump and sockets while parked, with no need for campsite mains. Withstands daily discharges throughout the season.
Why this caravan battery?
- Real off-grid autonomyno campsite hookup needed
- Lasts the whole seasonhandles daily discharges without capacity loss
- Powers it all at oncefridge, water pump, LED and USB without issues
Voltage
12 V
Capacity
75 Ah
Cold cranking
975 A
Dimensions
325×165×238 mm
Technology
AGM ESPIRAL
Weight
27,9 kg
Model
OPTIMA YELLOW TOP
Leisure battery Optima YTS-5.5 Yellow Top 75Ah 975A 12V
12VVoltage
75AhCapacity
975ACold cranking
27.90kgWeight
The Optima YTS-5.5 with spiral-cell AGM technology stores 75 Ah at 12 V: autonomy for motorhomes, caravans and campers that need power off-grid. Its 325 × 158 × 218 mm make it the exact replacement for the 75 Ah battery fitted as standard to many motorhomes and caravans.
- Direct replacement for the original leisure battery.
- Recharges from the alternator, a solar panel or a mains charger.
- Withstands daily discharges throughout the season.
- Spiral AGM construction, sealed and mountable in any position.
Size, terminals and hold-down of the Optima YTS-5.5
The Optima YTS-5.5 is made in the 325 × 158 × 218 mm format and weighs 27.90 kg. It uses 1 terminals, the system that anchors and connects it in the vehicle. Checking the three dimensions and the terminal position before buying avoids the most common mistake when replacing a battery.
What the Optima YTS-5.5 is for
As a leisure battery, the Optima YTS-5.5 is discharged and recharged every travelling day; avoid discharges below 50% to extend its life. Check that it matches your current battery in dimensions, terminals and hold-down: this reference has a weight of 27.90 kg and 1 terminals.
The Optima YTS-5.5: Yellow Top range and spiral-cell AGM technology
The Yellow Top is the Optima range the YTS-5.5 belongs to: it shares the same construction and quality criteria with the rest of the series, and varies in capacity and format to suit each vehicle.
In a spiral-cell battery the electrolyte is absorbed and the plates are wound under pressure. That lets it deliver very high current peaks, recharge quickly and be mounted in any position.
Why choose Optima batteries
The Optima Red, Yellow and Blue Top are references for high-performance starting, deep cycling and marine use respectively, all with the characteristic six spiral-cell design. We guarantee that every Optima arrives new, charged and with the manufacturer's full warranty.
Official warranty
The Optima YTS-5.5 comes with the manufacturer's official warranty against manufacturing defects. Avoid repeated full discharges: they shorten its life and are not covered.
How to make it last longer
During months of storage, keep it charged with a mains charger or a small solar panel; a battery left discharged for weeks loses capacity permanently. Charge with a voltage-controlled AGM charger; a fully discharged pure-lead battery may need a specific charger to recover.
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-OPTIMA-YTS-5.5
Data sheet
- Brand
- OPTIMA
- Reference
- YTS-5.5
- Model
- OPTIMA YELLOW TOP
- Voltage (V)
- 12
- Length
- 325.00 mm
- Width
- 158.00 mm
- Height
- 218.00 mm
- Weight
- 27.9 Kgs
- Technology
- AGM ESPIRAL
- EAN
- 4016987113585
- Terminal layout
- 8
- Terminal type
- 1
- Cold cranking amps (EN)
- 975A
- Capacity (C20)
- 75Ah (c20)
- Capacity (C5)
- 68Ah (c5)
- ETN
- 8511870008882
Specific References
- EAN13
- 4016987113585
- MPN
- YTS-5.5
Más buscados
Cars that use the OPTIMA YTS-5.5
5,00/5
Verified purchasesLatest verified reviews
Reviews originally written in Spanish
★★★★★Francisco García P.Verified purchase
17/09/2026batería excelente prestación
bateria
siempre compro la marca original este producto es exigente al arrancar el vehículo da potencia y es duradero
mi vehículo tiene ya tiene unos cusntos años
es una dodge journey y la primera batería me duro 8 años y ni yo me lo creía
se lo decía al taller de mantenimiento y decia si no lo veo no lo creo
a ver si esta dura de 5 para arriba
es muy buena batería
Codes and references Optima YTS-5.5
| Brand | Optima · see all Optima batteries |
|---|---|
| Manufacturer range | OPTIMA YELLOW TOP |
| Manufacturer part number (MPN) | YTS-5.5 |
| Also known as | YTS5.5 · YTS 5.5 · 851187000 |
| ETN code | 8511870008882 (short form 851 187 000) |
| EAN-13 barcode | 4016987113585 |
| Dimensions (length × width × height) | 325 × 165 × 238 mm (325x165x238) |
Recommended accessories
Compatible vehicles
The Optima YTS-5.5 fits 3 vehicles. Most searched below:
How to change the battery
Guide to replace the leisure battery of your motorhome or caravan. Estimated time 15-25 minutes. Important: isolate the 12V auxiliary system before handling.
Step 1. Switch off 12V equipment and unplug shore power
Turn off fridge, lights, water pump, Truma Mover and other auxiliary loads. Disconnect the 230V shore power and solar panels if any.
Step 2. Locate the leisure battery compartment
On motorhomes usually under the driver/passenger seat, in an outside locker or in the garage area. Verify this is NOT the engine starter battery — that one is up front with the engine.
Step 3. Disconnect the negative (−) terminal
Use the 10 mm wrench to loosen the negative cable nut (black, marked −) and remove the cable from the post. Move it aside so it cannot touch any bodywork.
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
Loosen the bottom hold-down clamp with the same wrench. Lift the battery carefully (it can weigh 15-25 kg). Clean the tray with a brush and baking soda if there is corrosion.
Step 6. Install the new battery
Place the battery in the same orientation as the old one (positive terminal on the same side). Tighten the hold-down clamp firmly.
Step 7. Connect the cables
Connect the positive (+) terminal first, then the negative (−). Tighten the nuts with the wrench until each terminal does not move. Apply anti-spark grease if you have any.
Step 8. Verify the charger and auxiliary services
After connecting, check the combi charger (CBE/Schaudt/Nordelettronica) recognises the new battery: voltage should stabilise at 13.2-13.8 V with 230V connected. Test a couple of services (lights + pump) before heading out.
Frequently asked questions
Is the YTS-5.5 model AGM? What does this technology offer?
Yes. The YTS-5.5 from Optima uses AGM (Absorbent Glass Mat) technology: a sealed lead-acid battery where the electrolyte is absorbed in a glass-fibre mat. It withstands more charge/discharge cycles than a conventional one, handles heat better and is the required technology for caravans with advanced Start-Stop and regenerative braking. Expected lifespan: 5-8 years under normal conditions.
How do I change this battery step by step?
In most caravans 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 caravans with Start-Stop or BMS, register the battery via OBD so the alternator applies the correct charging profile.
How long does the Optima YTS-5.5 battery last?
Expected lifespan of the Optima YTS-5.5 is 5 to 8 years in mild-climate caravan use with 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 measurements of the YTS-5.5 model?
Dimensions (length × width × height) are 325×165×238 mm — also written as 325x165x238 mm — following the European DIN standard. Always measure the space in your caravan before buying: even one extra millimetre can prevent the hold-down clamp from closing. The height shown includes the terminals.
Under which reference is the Optima YTS-5.5 listed in catalogues?
The manufacturer reference (MPN) is YTS-5.5 and its ETN code is 8511870008882 (short form 851 187 000), the European identifier used in spare-part catalogues. The EAN-13 barcode is 4016987113585. It belongs to the OPTIMA YELLOW TOP range. Any of these codes identifies exactly this battery when requesting quotes or comparing prices.
Is the YTS-5.5 valid for my vehicle?
Three options to confirm: 1) enter your number plate in the finder (DGT/DVLA/KBA auto-detect your model and engine); 2) check the "Compatible vehicles" tab on this page, where we list every vehicle verified by our technical team; 3) if you cannot find your model, message us on WhatsApp with brand, model, engine and year — we reply during business hours (Mon–Fri 10:00–13:30 and 16:40–18:00 (Spanish time, CET)). The YTS-5.5 fits 3 verified vehicle versions in our database.
Which batteries are equivalent to the Optima YTS-5.5?
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 caravans. See the "Equivalents" section to view recommended options at the same performance level.
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