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OPTIMA Blue Top 5.0

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Battery OPTIMA BTDC-5.0 12V 66Ah 845A
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  • Battery OPTIMA BTDC-5.0 12V 66Ah 845A
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€225.05
VAT included
Quantity

Brand OPTIMA Reference BTDC-5.0


Optima

Are you looking for a double use battery?

In baterias.com you can buy the battery OPTIMA BTDC-5.0 at the best price

The battery OPTIMA BTDC-5.0 66Ah 765A 12V presents the following characteristics:

Battery Optima Blue Top 5.0 66Ah 845A 12V Blue Top
VOLTIOS AH CCA DIMENSIONS POSITIVE
12V 66Ah 845A 309x172x200 Left

  • Optima Blue Top 5.0

  • Boat battery

  • OPTIMA BLUE TOP

  • OPTIMA

  • Blue Top 5.0

  • 12 V

  • 66Ah (c20)

  • 61Ah (c5)

  • 845A

  • 309x172x200

  • AGM ESPIRAL

  • Positive Left

At-home battery installation

UNBEATABLE PRICES

Express delivery service

URGENT DELIVERIES

Free returns

FREE RETURNS

Thousands of satisfied customers

TRUSTED WEB

Battery Optima Blue Top DC 5.0 66Ah 845A 12V

The Battery OPTIMA BTDC-5.0 66Ah 765A 12V BLUE TOP belongs to the Optima Bluetop battery range
This high -end battery incorporates Spiracell technology (cells with spiral structure inside that enhances the performance of the batteries) created by Optima, which offers more prolonged service time, faster recharges and even twiceconventional nautical batteries.
Specially designed to overcome the great demands of nautical applications offering a reliable energy supply, totally free of leaks and does not require maintenance.Totally free of leaks and does not require maintenance. Among our Bluetop products catalog you will find double -use batteries that S can use in any deep cycle application (navigation accessory, on -board applications, outboard engine, bow propuls) or starting.

Ideal for:

  • Start applications

  • Agricultural machines

  • Construction vehicles

  • Emergency vehicles

  • Generators

  • Trams


Battery advantages and characteristics OPTIMA BTDC-5.0 66Ah 765A 12V

  • Long useful life.Lasts up to three times more than conventional flat plates batteries

  • Constant performance

  • Greater power.More power during the first one, two, five and ten seconds of the starting process compared to similar lead-acid batteries.

  • Perfect for seasonal uses.If it is fully charged, it may not be used for a period of up to 12 months at room temperature (or lower) and yet start a car.

  • x15 times more resistant to vibrations than standard lead-acid batteries

  • Free of mantenimient

  • It can be installed almost in any position


How to find the right battery for your vehicle or device?

Optimal AGM AGM batteries are not comparable to any other battery in the world.Its Spi-Dpiell technology is among the most advanced lead-acid battery technologies available in the market.
If you are not sure what cover color is better under your hood, do not hesitate to contact us and we will be happy to advise you.

Why choose an optimal battery?

If you look for the maximum possible power or a battery to work in the toughest working conditions.Do not hesitate, choose an optima battery

OPTIMA - LEADING BRAND IN THE SECTOR

With a 40 -year history of technological innovation and engineering, Optima® products offer unstoppable power for extreme enthusiasts and other people who require the final source of energy.
In the 1970s, Optima Batteries presented the first main maintenanceless lead batteries for commercial and military use and the first high-performance AGM automotive batteries, but optimal innovation did not stop there.Optima the industry revolutionized with the introduction of its exclusive Spiord Technology® that grants certain key benefits such as:
  • Incredibly high starter characteristics in a small battery
  • Up to 15 times more resistance to vibrations than a conventional battery
  • Have a higher life cycle compared to traditional batteries

BCOM-OPTIMA-BTDC-5.0

Data sheet

Brand
OPTIMA
Reference
BTDC-5.0
Model
OPTIMA BLUE TOP
Volts
12
Length
309.00 mm
Width
172.00 mm
Height
200.00 mm
Weight
22.7 Kgs
Technology
AGM ESPIRAL
EAN
4016987130346
Scheme
1
Terminal
1 & 21
CCA (EN)
845A
Ah (c20)
66Ah (c20)
Ah (c5)
61Ah (c5)
ETN
8272270008882

Specific References

EAN13
4016987130346
MPN
BTDC-5.0

How to change the battery

Step-by-step guide to replace your car battery in 15 minutes without losing vehicle settings.

⏱ 15 min🛠 Tools: 10 mm wrench · Protective gloves
  1. Step 1. Prepare the vehicle

    Park on a flat surface, switch off the engine and remove the key. Make sure all lights and electrical accessories are off. Wait 1-2 minutes before starting.

  2. Step 2. Locate the battery

    Open the bonnet. The battery is usually in the engine bay, but in many modern cars it may be in the boot or under the passenger seat. Check the manual if you cannot find it.

  3. 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.

  4. 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.

  5. 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.

  6. 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.

  7. 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.

  8. Step 8. Verify the engine starts

    Close the bonnet. Start the engine to confirm everything works. On cars with Start-Stop or a BMS, you may need to register the battery via OBD so the alternator applies the correct charging profile.

Frequently asked questions

How do I check that the OPTIMA BTDC-5.0 battery fits my vehicle?

Three ways: 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 for the BTDC-5.0; 3) if you cannot find your model, message us on WhatsApp with brand, model, engine and year — we confirm within 30 minutes.

How is the OPTIMA BTDC-5.0 battery installed?

It fits in about 15 minutes with a 10 mm wrench: 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 cars with Start-Stop or BMS, register the battery via OBD so the alternator applies the correct charging profile.

What warranty does the OPTIMA BTDC-5.0 battery have?

Manufacturer warranty depends on the battery type: 2 years for car batteries; 1 year for trucks; 6 months for motorcycles, jet skis, quads and cyclic batteries. It covers manufacturing defects (cells, short circuits, abnormal capacity drops). On confirmed defect after technical inspection, we replace the battery at no cost.

How long does OPTIMA BTDC-5.0 delivery take?

In mainland Spain and Portugal it arrives in 24 h if you order before 17:00 and the battery is in stock — it leaves the same day and arrives the next business day. Afternoon or weekend orders ship the next business day. For Balearics, Canaries and other EU destinations, allow 2-5 days. Shipping cost is calculated in the cart based on destination and service (standard, express, cash on delivery). Tracking number is sent by email + SMS as soon as the parcel ships.

Can I return the OPTIMA BTDC-5.0 battery if it doesn't fit or doesn't work?

Yes. You have 14 days from delivery to return it. In mainland Spain and Portugal returns are FREE — we cover the return shipping cost via prepaid label. In other EU countries the return shipping cost is the customer's. It must arrive in its original packaging with no signs of installation. If it was defective, the warranty covers replacement even after the 14-day period.

How much does the OPTIMA BTDC-5.0 battery cost?

The current price at baterias.com is €185.99 (VAT included), updated every 24 hours. Shipping cost is calculated in the cart based on destination and chosen service (standard, express, cash on delivery). If you find it cheaper elsewhere (same product and same delivery time), message us on WhatsApp and we will match the price.

Where can I buy the OPTIMA BTDC-5.0 battery?

At baterias.com — authorised distributor with real stock, 24h delivery in mainland Spain and Portugal if you order before 17:00, and full manufacturer warranty. Shipping cost is calculated in the cart based on destination and chosen service (standard, express, cash on delivery). Secure payment by card, Bizum, PayPal or bank transfer. If you choose at-home installation, our technician will take the used battery and dispose of it through an authorised collection point.

How long does the OPTIMA BTDC-5.0 battery last?

Average lifespan in normal car use (15,000-25,000 km/year, mild climate) is 4 to 6 years. In cold regions it drops to 3-5 years 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 dimensions of the OPTIMA BTDC-5.0 battery?

Dimensions (length × width × height) are 309×172×200 mm, following the European DIN standard. Always measure the space in your car before buying: even one extra millimetre can prevent the hold-down clamp from closing. The height shown includes the terminals.

How much does the OPTIMA BTDC-5.0 battery weigh?

It weighs 22,7 kg. Most of the weight is lead. If you plan to fit it yourself, use gloves and a carrying strap (AGM batteries are slightly heavier than conventional due to the absorbent glass-mat fibre).

Will the OPTIMA BTDC-5.0 battery fit my car?

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 confirm within 30 minutes. The BTDC-5.0 fits hundreds of European vehicles thanks to its standard DIN case format.

Which batteries are equivalent to the OPTIMA BTDC-5.0?

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 cars. See the "Equivalents" section to view recommended options at the same performance level.

Which is better: OPTIMA BTDC-5.0 or an alternative from another brand?

This battery and its equivalents from Bosch, Tudor or Exide are technically comparable: same dimensions, same voltage and same capacity. The differences are warranty (Varta and Bosch: 2 years; Tudor and Exide: 2 years on the equivalent line), manufacturing plant (Varta and Bosch share origin in the Clarios Group; Tudor and Exide belong to Stryten Energy) and price. For private use any of these brands will give 4-6 years of life. Compare them in the "Equivalents" section.

What do users say about the OPTIMA BTDC-5.0 battery?

The average star rating shown above is calculated on verified reviews from customers who have bought it at baterias.com. You can read real reviews in the "Reviews" section and on our Trustpilot profile (4.6/5 from 12,000+ verified reviews). Most-praised points: reliable cold start, lifespan above 5 years and fast delivery; most common complaints mention BMS-equipped cars that need OBD registration after fitting.


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