Varta Dynamic EFB N50 Car Battery 50Ah 550A 12V for Start-Stop
The Varta Dynamic EFB N50 battery (12 V, 50 Ah, 550 A) is designed for vehicles with Start-Stop technology and standard electronic features. It delivers extra starting power and twice the cycle life of a conventional battery, is maintenance-free, meets original equipment (OE) criteria and is engineered in Germany. Dimensions: 207 x 175 x 190 mm, positive terminal on the right.
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Varta Dynamic EFB N50 50Ah 550A 12V battery: EFB for Start-Stop cars
The Varta Dynamic EFB N50 battery (reference 550500055K262) is the perfect choice for drivers who value dependability. It is designed for Start-Stop technology vehicles with standard electronic features and delivers extra starting power for confident starts, backed with twice the lifespan of a conventional battery. It is a 12 V, 50 Ah, 550 A EFB battery.
Built for Start-Stop
Start-Stop performance
It delivers the best Start-Stop performance for maximum fuel economy, as the Start-Stop system can operate as often as possible.
Reliable performance
Trusted power for vehicles with entry-level Start-Stop systems.
Twice the cycle life
Its cycle life is twice that of a conventional battery, with smooth, consistent performance on every drive.
Original equipment quality, engineered in Germany
Varta batteries meet all the standards of OE manufacturers. The Dynamic EFB is an original equipment (OE) spare part that meets all the criteria of the vehicle manufacturer and is engineered with precision and expertise in Germany.
Maintenance-free
This is a maintenance-free battery designed to deliver dependable performance for your vehicle.
Check compatibility before you buy
Before choosing your battery, check that these details match your current battery:
- Capacity: 50 Ah, voltage 12 V, cold cranking amps (CCA) 550 A
- Dimensions (L x W x H): 207 x 175 x 190 mm
- Case size: H4/L1
- Base hold-down: B13
- Terminal layout: 0, with the positive on the right
- Terminal type: 1
Frequently asked questions
What is an EFB battery?
EFB is a battery technology designed for vehicles with Start-Stop. The Varta Dynamic EFB is intended for entry-level Start-Stop systems with standard electronic features.
What is the difference between an EFB and an AGM battery?
According to Varta, the Dynamic EFB is for Start-Stop vehicles with standard energy needs and offers twice the cycle life of a conventional battery. The Dynamic AGM is intended for vehicles with the highest energy demands and offers three times.
Can I fit an EFB in a car that came with an AGM?
If your car was fitted with an AGM originally, it is advisable to keep the same technology. Check your vehicle manual or the label on your current battery.
What are the dimensions of the Varta Dynamic EFB N50 battery?
It measures 207 x 175 x 190 mm (L x W x H), with an H4/L1 case and B13 base hold-down.
What is the polarity?
The positive terminal is on the right (terminal layout 0). Check it against your current battery before buying.
Does it need maintenance?
No. It is a maintenance-free battery.
Varta batteries in the Canary Islands: which one does your car need?
Varta is one of the most widely fitted original-equipment starter battery brands among European car makers. At Baterías Canarias we stock its ranges for cars, Start-Stop vehicles and heavy transport in Tenerife, so you don't have to wait for a shipment from mainland Spain.
Varta ranges we stock
| Range | Technology | Which vehicle |
|---|---|---|
| Dynamic SLI (replaces Blue Dynamic) | Maintenance-free lead-acid | Petrol and diesel cars without Start-Stop |
| Dynamic EFB | EFB (enhanced flooded battery) | Basic Start-Stop, no regenerative braking |
| Dynamic AGM | AGM (absorbent glass mat) | Advanced Start-Stop, regenerative braking, premium cars |
| Promotive | Conventional, EFB and AGM for heavy duty | Trucks, buses, machinery and commercial vehicles |
Freshly manufactured Varta batteries
We receive factory orders of the new range every month, so your Varta battery arrives freshly manufactured, with its full service life ahead. We don't sell old Blue Dynamic stock.
How to choose the right battery
- Same technology as the original: if your car came with AGM, it needs AGM. Fitting a conventional or EFB battery instead causes Start-Stop faults and a very short battery life.
- Size and polarity: the case must fit the tray and the positive terminal must sit on the same side as the original.
- Capacity (Ah) and cranking power (A): the same as or slightly higher than the original. More cranking amps will not harm your car.
- Not sure? Use our battery finder by vehicle or send us the make, model and year and we'll tell you the exact part number.
Why buy your Varta from Baterías Canarias
- Final price with IGIC included: no customs, no import paperwork and no surprises on delivery.
- Stock in Tenerife and 24-72 h delivery to all islands, with shipping included.
- Physical shops in Tacoronte and La Guancha to collect your battery or ask us in person.
- Warranty handled from the Canary Islands: if there's a problem, nothing needs to go to mainland Spain.
Varta battery FAQ
What happened to the Varta Blue Dynamic?
Varta has renewed its starter range: Blue Dynamic has been replaced by the new Dynamic SLI, with the same part numbers (B18, D24, E11, G7…) and the same dimensions. If your car had a Blue Dynamic, the Dynamic SLI with the same part number is its direct replacement.
Which Varta battery does a Start-Stop car need?
It depends on the battery the manufacturer fitted. Simpler Start-Stop systems use EFB, while cars with regenerative braking or lots of electronics use AGM. Never downgrade the technology: you can replace an EFB with an AGM, but not the other way round. See all our Start-Stop batteries.
Are the Varta G7 and G8 the same?
They have the same capacity (95 Ah), cranking power (830 A) and dimensions, but different polarity: the positive terminal is on the opposite side. Check which side the positive is on your current battery and choose the one that matches.
How long does a Varta battery last?
Normally between 4 and 6 years. Heat speeds up wear on any battery, so in the warmer parts of the Canary Islands, and in cars that only do short trips, it's worth checking it from the fourth year. If the car struggles to start in the morning, it's time to test it.
How much does a Varta battery cost in the Canary Islands?
Dynamic SLI car batteries start at around €90. Start-Stop EFB and AGM batteries range from roughly €140 to €300 depending on capacity, and truck batteries depend on size. All prices in our shop are final, with IGIC and shipping included.
Do you deliver Varta batteries to all islands?
Yes. We ship from Tenerife to Gran Canaria, Lanzarote, Fuerteventura, La Palma, La Gomera and El Hierro. If you're in Tenerife, you can also collect it in Tacoronte or La Guancha.
See also: car batteries · truck batteries · battery chargers
| Brand | Varta |
|---|---|
| Model | Dynamic EFB N50 |
| Reference | 550500055K262 |
| ETN code | 550500055 |
| Short code | N50 |
| UK code | 012EFB |
| Technology | EFB |
| Voltage | 12 V |
| Capacity | 50 Ah |
| Cold cranking amps (CCA) | 550 A |
| Dimensions (L x W x H) | 207 x 175 x 190 mm |
| Case size | H4/L1 |
| Base hold-down | B13 |
| Terminal layout | 0 (positive on the right) |
| Terminal type | 1 (ø 19.5 mm positive / ø 17.9 mm negative) |
| Application | Vehicles with Start-Stop and standard electronic features |
| Cycle life | 2 times that of a conventional battery |
| Maintenance | Maintenance-free |
| Quality | Original equipment (OE) spare part |
| Engineered in | Germany |