Optima YTS-2.7 Yellow Top · Auxiliary battery 38Ah 460A AGM
Specifications
| Brand | OPTIMA |
|---|---|
| Part number | YTS-2.7 |
| Voltage (V) | 12 |
| Capacity (C20) | 38Ah (c20) |
| Capacity (C5) | 33Ah (c5) |
| Cold cranking amps (EN) | 460A |
| Technology | AGM ESPIRAL |
| Length | 237.00 mm |
| Width | 129.00 mm |
Optima YTS-2.7 12V 38Ah 460A is an AGM support battery designed for daily cycling while keeping voltage stable for the vehicle systems.
Why this auxiliary battery?
- Designed for Start-Stopbuilt for the intensive cycling of modern cars
- 2 to 3 times longer lifevs fitting a cheap conventional battery
- Fast recoveryrecharges in minutes once the engine is running
Where it fits: the Optima YTS-2.7 is one of our batteries for caravans, belongs to our Optima batteries and by capacity it sits among our 38Ah batteries.

Leisure battery Optima YTS-2.7 Yellow Top 38Ah 460A 12V
The 12 V, 38 Ah Optima YTS-2.7 battery from the Yellow Top range with spiral-cell AGM technology is designed for motorhomes, caravans and campers that need power off-grid. It measures 237 × 129 × 201 mm and the positive terminal on the left, the format sought by anyone replacing a 38 Ah battery in motorhomes and caravans.
- Low self-discharge during months of storage.
- Sealed and gas-free: suitable for installation inside the living area.
- Power for fridge, lighting, water pump and USB off-grid.
- Spiral cells: maximum vibration resistance and very powerful cranking.
Dimensions, polarity and mounting
The Optima YTS-2.7 is made in the 237 × 129 × 201 mm format and weighs 12.40 kg. The positive terminal on the left decides which side the cables end up on: it is the detail that causes most buying mistakes, so check it before ordering. It uses 1 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.
What the Optima YTS-2.7 is for
With 38 Ah, the Optima YTS-2.7 is the habitation battery for motorhomes, caravans and campers that need power off-grid. It recharges from the alternator, a solar panel or a mains charger. Check that it matches your current battery in dimensions, terminals and hold-down: this reference has a weight of 12.40 kg and 1 terminals.
The Optima YTS-2.7: Yellow Top range and spiral-cell AGM technology
The Yellow Top is the Optima range the YTS-2.7 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.
Optima: the maker behind the YTS-2.7
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. All the Optima batteries in our catalogue are genuine product, recently manufactured and covered by the manufacturer's warranty.
Official warranty
The Optima YTS-2.7 comes with the manufacturer's official warranty against manufacturing defects. Avoid repeated full discharges: they shorten its life and are not covered.
Care and maintenance
Charge with a voltage-controlled AGM charger; a fully discharged pure-lead battery may need a specific charger to recover. Avoid routinely discharging the leisure battery below 50% and recharge it fully after every trip.
Shipping, delivery 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.
Data sheet
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BrandOPTIMA
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ReferenceYTS-2.7
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ModelOPTIMA YELLOW TOP
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Voltage (V)12
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Length237.00 mm
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Width129.00 mm
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Height201.00 mm
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Weight12.4 Kgs
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TechnologyAGM ESPIRAL
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EAN4016987113615
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Terminal layoutPositive terminal on the left
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Terminal type1
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Cold cranking amps (EN)460A
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Capacity (C20)38Ah (c20)
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Capacity (C5)33Ah (c5)
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ETN8711760008882
Specific References
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EAN134016987113615
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MPNYTS-2.7
Codes and references Optima YTS-2.7
| Brand | Optima · see all Optima batteries |
|---|---|
| Manufacturer range | OPTIMA YELLOW TOP |
| Manufacturer part number (MPN) | YTS-2.7 |
| Also known as | YTS2.7 · YTS 2.7 · 871176000 |
| ETN code | 8711760008882 (short form 871 176 000) |
| EAN-13 barcode | 4016987113615 |
| Dimensions (length × width × height) | 237 × 129 × 227 mm (237x129x227) |
Optima YTS-2.7: best-selling equivalent or higher-spec batteries
The Optima YTS-2.7 is interchangeable with these equivalent references: EK457 (Exide).
| Product | Specifications | Technology | Price | |||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Optima
YTS-2.7
This battery
|
12V 38Ah 460A | AGM | 154,90 € | |||||||||||||||||||||
Exide
EK457
Exide equivalent |
45Ah 380A | AGM | 212,40 € +57,50 € | |||||||||||||||||||||
| ||||||||||||||||||||||||
| YTS-2.7 | EK457 | |
|---|---|---|
| Capacity | 38 Ah | 45 Ah |
| Cold cranking (EN) | 460 A | 380 A |
| Technology | AGM | AGM |
| Dimensions (mm) | 237 × 129 × 227 | 237 × 127 × 227 |
| Positive terminal | Positive terminal on the left | Positive left |
| Price | 154,90 € | 212,40 € |
Equivalences verified by our technical team: same dimensions, polarity, capacity and CCA. Official manufacturer warranty on every option.
Other 38Ah batteries: We stock 11 models of 38 Ah to compare by price, technology and cold cranking: see all 38Ah batteries. Same size (237 × 129 × 227 mm): batteries of 237 × 129 × 227 mm.
Recommended accessories
Compatible vehicles
The Optima YTS-2.7 fits 1 vehicles. Most searched below:
Frequently asked questions
Is the Optima YTS-2.7 an AGM battery and what are the benefits of AGM?
Yes, it is AGM. In an AGM battery such as the YTS-2.7, the electrolyte is not free but absorbed in a glass-fibre mat inside a sealed lead-acid battery. It tolerates heat better and handles more cycles than a conventional battery.
How much energy does this battery give a caravan?
It stores about 456 Wh. To make it last, it should not be discharged below half, so you have about 228 Wh usable: for example, an average load of 50 W for about 5 hours.
Can it be charged with solar panels?
Yes, with a charge controller (PWM or MPPT) set for AGM. It can also be charged by the vehicle alternator (ideally with a DC-DC charger) and by the 230 V charger when you are on hook-up at the campsite.
What are the measurements of the YTS-2.7 model?
The Optima YTS-2.7 takes up 237×129×227 mm (length, width and height, terminals included). Before buying, measure the space in your caravan: one extra millimetre can stop the hold-down clamp from closing.
What polarity does the Optima YTS-2.7 battery have?
The YTS-2.7 has the positive on the left: that is its polarity. Face the battery with its terminals nearest you and see which side the positive post (+, red ring) is on. A change of polarity from the original means longer cables or a reconfigured system and can cause a short circuit: check it before ordering.
What barcode does this battery have?
Manufacturer part number (MPN): YTS-2.7. ETN code: 8711760008882 (short form 871 176 000), the European identifier used in parts catalogues. EAN-13 barcode: 4016987113615. It belongs to the OPTIMA YELLOW TOP range. Any of them identifies this exact battery.
Optima YTS-2.7 or Exide EK457: which one to choose?
The Exide alternative that fits where the YTS-2.7 goes, with the same polarity. Compared with the YTS-2.7 it has 7 Ah more and 80 A of cold cranking less. It costs 57,50 € more. A straight swap with nothing to adapt; the difference is the price and the brand you prefer.
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