Optima
Optima YTS-2.1 · Classic car battery 6V 55Ah 765A
Reference: BOL-OPTIMA-YTS-2.1 · EAN 4016987124093
The Optima YTS-2.1 (ETN 818 356 000, also written 818356000) is a classic car battery (spiral AGM) with 6 V, 55 Ah and 765 A cold cranking current, measuring 255 × 90 × 206 mm, with the positive terminal on the left.
Optima YTS-2.1 · Classic car battery 6V 55Ah 765A images
- Voltage
- 6V
- Capacity
- 55Ah
- Cold cranking amps (EN)
- 765A
- Technology
- Spiral AGM
- Dimensions (L × W × H)
- 255 × 90 × 206 mm
- Polarity
- Positive terminal on the left
Price:
€157.89
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14 days to return your order
If it does not fit, you have 14 days from delivery to return it unused.
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Enter your number plate or chassis number (VIN): we check whether this battery is compatible with your vehicle.
The Optima YTS-2.1 at a glance
The Optima YTS-2.1 solves starting in a classic: voltage and size from another era with modern manufacturing, so the car starts at the first try again.
At 55 Ah it covers petrol compacts and small diesels, the best-selling format in Europe. The YTS-2.1 belongs to the Optima OPTIMA YELLOW TOP range. See all Optima batteries
Optima YTS-2.1 vs RTS-2.1
How the YTS-2.1 compares with Optima batteries of similar size and capacity:
| Model | Capacity | Cold cranking (EN) | Dimensions (mm) | Positive | Weight |
|---|---|---|---|---|---|
| Optima YTS-2.1 (this one) | 55 Ah | 765 A | 255 × 90 × 206 | left | 10.6 kg |
| Optima RTS-2.1 | 50 Ah | 815 A | 254 × 90 × 203 | – | 8.9 kg |
- Optima RTS-2.1: 5 Ah less, 50 A more cranking power, a different case (254 × 90 × 203 mm).
Optima YTS-2.1 codes and part numbers
Shops, garages and catalogues identify the YTS-2.1 with these codes:
| Commercial reference | YTS-2.1 |
|---|---|
| ETN code | 818356000 (also 818 356 000) |
| EAN | 4016987124093 |
| Base hold-down | B03 |
| Also known as | Optima 818356000 · Optima 818 356 000 |
| Not to be confused with | Optima RTS-2.1 (50 Ah, 815 A), Optima YTS-2.7 (38 Ah, 460 A) |
Equivalents and alternatives to the Optima YTS-2.1
No other reference in the catalogue fully matches the dimensions and polarity of the YTS-2.1; you will find the closest ones among our 6V batteries for classic cars.
What to look at before buying the YTS-2.1
- Measure the space: the YTS-2.1 takes up 255 × 90 × 206 mm.
- The YTS-2.1 has the positive terminal on the left: compare it with your current battery.
- Your current battery should say about 55 Ah; a little more is also fine.
- The YTS-2.1 delivers 765 A cold cranking (EN standard); do not go below what your original battery states.
Inside the YTS-2.1: spiral AGM technology
Inside, the YTS-2.1 rolls its plates into cylindrical cells (spiral AGM). It is the basis of OPTIMA batteries.
Frequently asked questions about the Optima YTS-2.1
Optima YTS-2.1 or RTS-2.1?
Compared with the YTS-2.1, the Optima RTS-2.1 has 5 Ah less and 50 A more cranking power. If your current battery says 815 A or more, choose the RTS-2.1; if it says 765 A or less, the YTS-2.1 is enough. Mind the space: the RTS-2.1 measures 254 × 90 × 203 mm.
What is the ETN code of the Optima YTS-2.1?
818356000, also written 818 356 000. The ETN (European Type Number) is printed on the label and used in parts catalogues.
How much does the Optima YTS-2.1 weigh?
The YTS-2.1 weighs 10.6 kg. For reference, the Optima RTS-2.1 (50 Ah) weighs 8.9 kg.
Which side is the positive terminal on the Optima YTS-2.1?
The YTS-2.1 has the positive terminal on the left, looking at the battery from its long side with the terminals closest to you.
How do I preserve the battery of a classic I rarely drive?
With a maintenance charger connected whenever the car sleeps for more than two weeks. Avoid deep discharge: it is what shortens a lead battery's life most.
More batteries to compare with the YTS-2.1
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