Optima
Optima BTDC-5.0 · Boat battery 12V 66Ah 765A
Reference: BOL-OPTIMA-BTDC-5.0 · EAN 4016987130346
Optima BTDC-5.0 (ETN 827 227 000, also written 827227000): boat battery with 12 V, 66 Ah and 765 A cold cranking current, case size D31 (309 × 172 × 221 mm), with the positive terminal on the left.
Optima BTDC-5.0 · Boat battery 12V 66Ah 765A images
- Voltage
- 12V
- Capacity
- 66Ah
- Cold cranking amps (EN)
- 765A
- Technology
- Spiral AGM
- Dimensions (L × W × H)
- 309 × 172 × 221 mm
- Polarity
- Positive terminal on the left
Price:
€220.86
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For Spain, Portugal, France, Germany, Italy, Belgium and the Netherlands you see the exact cost before paying. For the rest of Europe we send you a shipping quote, with no obligation.
14 days to return your order
If it does not fit, you have 14 days from delivery to return it unused.
Who the Optima BTDC-5.0 is for
The Optima BTDC-5.0 is a battery for boats: engine starting or on-board service, depending on its design, with resistance to damp and hull vibration. Check whether your boat needs starting, service or a dual-purpose battery before choosing.
The BTDC-5.0 belongs to the Optima OPTIMA BLUE TOP range. See all Optima batteries
What it means that the BTDC-5.0 is spiral AGM
The BTDC-5.0 is a spiral-cell AGM battery. Perfect for 4x4s, marine use and vehicles with lots of electronics.
Optima BTDC-5.0 vs BTDC-5.5 and BTDC-4.2
What sets the BTDC-5.0 apart from its neighbours in the Optima range:
| Model | Capacity | Cold cranking (EN) | Dimensions (mm) | Positive | Weight |
|---|---|---|---|---|---|
| Optima BTDC-5.0 (this one) | 66 Ah | 765 A | 309 × 172 × 221 | left | 24.4 kg |
| Optima BTDC-5.5 | 75 Ah | 975 A | 325 × 165 × 238 | – | 27.9 kg |
| Optima BTDC-4.2 | 55 Ah | 765 A | 254 × 175 × 200 | left | 20.6 kg |
- Optima BTDC-5.5: 9 Ah more, 210 A more cranking power, a different case (325 × 165 × 238 mm).
- Optima BTDC-4.2: 11 Ah less, the same cranking power, a different case (254 × 175 × 200 mm).
Equivalents and alternatives to the Optima BTDC-5.0
No other reference in the catalogue fully matches the dimensions and polarity of the BTDC-5.0; you will find the closest ones among our marine and boat batteries.
Optima BTDC-5.0 codes and part numbers
The BTDC-5.0 is listed under these codes on labels, in garages and in catalogues:
| Commercial reference | BTDC-5.0 |
|---|---|
| ETN code | 827227000 (also 827 227 000) |
| EAN | 4016987130346 |
| Case size (EN) | D31 |
| Case size according to Optima | 27 (BCI) |
| Base hold-down | B00 |
| Terminal type | 1 & 21 |
| Also known as | Optima 827227000 · Optima 827 227 000 |
| Not to be confused with | Optima BTDC-5.5 (75 Ah, 975 A) |
Check this before ordering the Optima BTDC-5.0
- Check the EN amps on your battery: if it says 765 A or less, the BTDC-5.0 covers your engine.
- Your current battery should say about 66 Ah; a little more is also fine.
- Polarity of the BTDC-5.0: positive terminal on the left (if yours has it on the other side, the cables will not reach).
- Measure the space: the BTDC-5.0 takes up 309 × 172 × 221 mm (European case size D31).
Frequently asked questions about the Optima BTDC-5.0
Optima BTDC-5.0 or BTDC-5.5?
Compared with the BTDC-5.0, the Optima BTDC-5.5 has 9 Ah more and 210 A more cranking power. If your current battery says 975 A or more, choose the BTDC-5.5; if it says 765 A or less, the BTDC-5.0 is enough. Mind the space: the BTDC-5.5 measures 325 × 165 × 238 mm.
What is the ETN code of the Optima BTDC-5.0?
827227000, also written 827 227 000. The ETN (European Type Number) is printed on the label and used in parts catalogues.
How much does the Optima BTDC-5.0 weigh?
The BTDC-5.0 weighs 24.4 kg. For reference, the Optima BTDC-5.5 (75 Ah) weighs 27.9 kg.
What case size is the Optima BTDC-5.0?
Case size D31: 309 × 172 × 221 mm (Optima lists it as 27 (BCI)). The BTDC-5.0 fits any standard D31 battery tray.
Which side is the positive terminal on the Optima BTDC-5.0?
The BTDC-5.0 has the positive terminal on the left, looking at the battery from its long side with the terminals closest to you.
How do I look after the boat battery in winter?
Leave it 100% charged, disconnected or on a marine maintenance charger. A battery that spends the winter half-discharged loses capacity permanently.
Keep comparing: alternatives to the BTDC-5.0
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