Start-Stop battery Varta N65 Dynamic EFB 12V 65Ah 650A EFB images
Specifications
| Brand | VARTA |
|---|---|
| Part number | N65 |
| Voltage (V) | 12 |
| Capacity | 65Ah (c20) |
| Capacity (C20) | 65 |
| Cold cranking amps (EN) | 650 |
| Technology | EFB |
| Length | 232.00 mm |
| Width | 175.00 mm |
Varta N65 12V 65Ah 650A is a battery designed specifically for Start-Stop vehicles. Withstands up to 3× more start cycles than a conventional battery and maintains performance with BMS and regenerative braking systems.
Where it fits: the Varta N65 is one of our car batteries, belongs to our Varta batteries and by capacity it sits among our 65Ah batteries.
The Varta N65 is the 65 Ah, 650 A EFB in a tall Asian case (232 × 173 × 225 mm, Q85 format) with the positive terminal on the right: the battery of Mazda's i-stop (2, 3, 6, CX-3, CX-5) and other Japanese cars with basic Start-Stop. It replaces the Blue Dynamic EFB N65. Do not swap it for a conventional battery of the same size: the system punishes it and it lasts months.
Mostly to Mazda CX-5, Mazda 3, Mazda 3 Saloon, Mazda Cx-5 and Mazda CX-3 (42 orders with the vehicle identified). Run it through the plate finder before buying: two versions of the same model can call for different cases.
The Varta N65 offers 65 Ah and 650 A cold cranking in a 232 × 173 × 225 mm case. The Varta N72, same brand and technology, goes up to 72 Ah and 760 A with 28 mm more length and costs €3.72 more. If the tray takes the size, extra capacity and cranking give winter margin; if not, this one is the fit.
It is the middle ground: more than conventional, less than AGM. If the car recovers energy when braking or carries heavy electronics, step up to AGM.
The Varta N65 car battery is the 12 V, 65 Ah model delivering 650 A of cold cranking power (EN) from Varta's Dynamic EFB (formerly Blue Dynamic EFB) range, designed for cars with a Start-Stop system and high electrical demand. Its 232 × 175 × 225 mm dimensions and positive terminal on the right make it the exact replacement for the 65 Ah battery fitted as standard in many cars.
In short: the Varta N65 (65 Ah, 650 A, 232 × 173 × 225 mm, positive terminal on the right) is one of the 50 best-selling batteries at baterias.com over the last 3 months. It is an EFB battery for cars with Start-Stop; if your car came with an AGM battery from the factory, always replace it with another AGM.
According to our database, the Varta N65 is fitted to more than 126 vehicles from brands such as Nissan, Mazda, Infiniti, Subaru, Great Wall and Renault, among others. For anyone who needs to change the battery in their Nissan or Mazda, this Varta N65 reproduces the original specifications. Added to that list are models from Toyota, Tata, Mitsubishi, Brilliance, Hyundai, Byd, Proton and Geely. Not sure whether it is the right one for your car? Check in seconds by entering your registration number in our finder.
In terms of format, the Varta N65 measures 232 × 175 × 225 mm (length × width × height) and weighs 18,4 kg. The positive terminal on the right determines which side the cables run to: it is the detail that causes the most buying mistakes, so it is worth checking before ordering. It uses a B00 hold-down and a type 1 terminal, the system that anchors it to the vehicle's battery tray. For the swap to be direct, the space your current battery occupies must respect those three dimensions and the same terminal layout; otherwise adapters will be needed or the hold-down will have to change.
The Dynamic EFB range (silver label) uses EFB technology, an enhanced lead-acid design for entry-level Start-Stop systems and vehicles with high energy demand. It withstands far more cycling than a conventional battery.
It is the correct replacement for cars that came with EFB from the factory and a solid step up from a standard battery. It sits one rung below AGM in terms of cycling demand.
In a modern vehicle the battery powers ever more electronics even with the engine switched off. This series is sized for that draw and for restarting the engine dozens of times a day without losing performance, something a traditional starter battery cannot handle. This battery used to belong to Varta's Dynamic EFB range; following the brand's commercial renaming (2025), it forms part of the new Dynamic EFB series.
Varta is a byword for reliability: original equipment in numerous European vehicles and one of the most proven brands on the market. Replacing your battery with a Varta restores OEM quality — the same performance as the factory-fitted unit — with the manufacturer's backing.
Varta combines more than a century of experience with Clarios's industrial production: it is the battery many manufacturers choose as standard and one of the most recommended by workshops. Like any lead-acid battery, it is 100% recyclable.
Varta is Europe's leading manufacturer of starter batteries: its production volume and quality controls guarantee consistent reliability batch after batch, something own-brand makers cannot always assure.
The Varta N65 battery comes with the official manufacturer warranty.
In a vehicle with Start-Stop the battery works far harder, so it pays to drive far enough for it to recharge and to always replace it with the same type (AGM for AGM, EFB for EFB) so the electronic management stays in calibration. To get the best from it, avoid very short journeys, which stop it recharging after each start. Keeping the terminals clean and the hold-down secure prevents vibration-related faults in the engine bay.
Download the official technical sheet for this battery with all the manufacturer data.
Data sheet
Specific References
No reviews with that rating
Reviews shown in their original language
Montada en un Mazda CX30 e-Skyactiv-X, hace unos 20.000km/año y duerme en garaje. La de origen (Yuasa) ha durado 4 años y medio pero dando bastantes mensajes de batería baja desde hace tiempo. La instalación ha sido muy sencilla, reemplazarla y no hace falta hacer nada más. Arranca perfecta y todos los sistemas funcionan correctamente.
Super, Service.
Von der Bestellung bis zur Lieferung 27 Stunden, alles hat wunderbar geklappt. Der Einbau ist bei diesem Model sehr einfach gewesen. Besser und schneller als bei jeder Garage.
La monte en un mazda cx5 del 2019.
Se nota la potencia al arrancar por la mañana. Mi coche viene con star-stop y esta batería me vino de lujo, y además las medidas son como dicen y entra a la perfección.
La compra fue fácil, la batería llegó en la flecha prevista.
4.75/5 · 4 verified-purchase reviews · ✓ Collected after the order, unfiltered
Perfecta
Montada en un Mazda CX30 e-Skyactiv-X, hace unos 20.000km/año y duerme en garaje. La de origen (Yuasa) ha durado 4 años y medio pero dando bastantes mensajes de batería baja desde hace tiempo. La instalación ha sido muy sencilla, reemplazarla y no hace falta hacer nada más. Arranca perfecta y todos los sistemas funcionan correctamente.
Vehicle: Subaru XV 2.0 i AWD (2018)
Für Subaru XV
Super, Service. Von der Bestellung bis zur Lieferung 27 Stunden, alles hat wunderbar geklappt. Der Einbau ist bei diesem Model sehr einfach gewesen. Besser und schneller als bei jeder Garage.
Vehicle: Mazda Cx-5 2.0 Awd (2019)
Bateria perfecta
La monte en un mazda cx5 del 2019. Se nota la potencia al arrancar por la mañana. Mi coche viene con star-stop y esta batería me vino de lujo, y además las medidas son como dicen y entra a la perfección.
Vehicle: Mazda Cx-5 2.0 E-Skyactiv G 165 (2024)
Funcionamiento correcto
La compra fue fácil, la batería llegó en la flecha prevista.
Each review is shown in the language the customer wrote it in.
| Brand | Varta · see all Varta batteries |
|---|---|
| Manufacturer range | Dynamic EFB (formerly Blue Dynamic EFB) |
| Manufacturer part number (MPN) | N65 |
| Also known as | 565501065 · Varta Blue Dynamic EFB N65 · Varta Dynamic EFB N65 |
| ETN code | 565501065D842 (short form 565 501 065) |
| EAN-13 barcode | 4016987167274 |
| Dimensions (length × width × height) | 232 × 173 × 225 mm (232x173x225) |
Batteries from our catalogue with the same dimensions, voltage and technology as the Varta N65 and a similar capacity, sorted by sales. They are not manufacturer-approved equivalents: check the polarity and capacity of your original battery.
| Product | Specifications | Technology | Price | |||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Varta
N65
This battery
|
12V 65Ah 650A | EFB | 110,80 € | |||||||||||||||||||||
Tudor
TL604
Same size
|
12V 60Ah 520A | EFB | 86,80 € −24,00 € | |||||||||||||||||||||
| ||||||||||||||||||||||||
| N65 | TL604 | |
|---|---|---|
| Capacity | 65 Ah | 60 Ah |
| Cold cranking (EN) | 650 A | 520 A |
| Technology | EFB | EFB |
| Dimensions (mm) | 232 × 173 × 225 | 230 × 173 × 222 |
| Positive terminal | Positive terminal on the right | Positive terminal on the right |
| Price | 110,80 € | 86,80 € |
Exide
EL604
Same size It has the same dimensions, voltage and technology as the N65, although it is not a manufacturer-approved equivalent. Compared with the N65 it has 5 Ah less and 130 A of cold cranking less. It costs 2,30 € more. Check the positive terminal side and the original capacity before ordering; otherwise it is a straight swap.
| N65 | EL604 | |
|---|---|---|
| Capacity | 65 Ah | 60 Ah |
| Cold cranking (EN) | 650 A | 520 A |
| Technology | EFB | EFB |
| Dimensions (mm) | 232 × 173 × 225 | 230 × 173 × 222 |
| Positive terminal | Positive terminal on the right | Positive terminal on the right |
| Price | 110,80 € | 113,10 € |
Automatic selection by dimensions (±3 mm), voltage, technology and capacity (−10 % / +20 %). Official manufacturer warranty on every option.
Other 65Ah batteries: We stock 22 models of 65 Ah to compare by price, technology and cold cranking: see all 65Ah batteries. Same size (232 × 173 × 225 mm): batteries of 232 × 173 × 225 mm.
The Varta N65 fits 126 vehicles. Most searched below:
Fitting it yourself? Step-by-step guide to replacing the battery →
Yes. The N65 is an EFB (Enhanced Flooded Battery): flooded lead-acid reinforced with plate additives. For cycles it sits between a conventional battery and an AGM, and it costs less than an equivalent AGM; it is the technology for cars with basic Start-Stop, without regenerative braking.
EFB batteries cover basic Start-Stop (no regenerative braking). The Varta N65 is EFB, so yes, it is designed for Start-Stop cars. It works once fitted; on most modern cars, registering it via OBD is advisable so the alternator applies the optimum charging profile. As a rule: EFB for basic Start-Stop, AGM when there is also regenerative braking (more cycles); in any case, what the car manufacturer specifies.
Start-Stop or BMS specifics: do not remove the IBS sensor on the negative terminal (just loosen the cable nut); after the swap, register the battery via OBD so the alternator charges with the right profile; and never step down in technology: if the car had AGM or EFB, the new one must be the same or better, as a conventional battery lasts only a few months. With a 10 mm spanner, swapping in the Varta N65 takes 15 to 30 minutes on most cars; if the battery sits in the boot or under a seat, allow up to twice as long. Steps: 1) switch off and remove the key; 2) find the battery (bonnet, boot or under a seat); 3) undo the negative (−), then the positive (+); 4) remove the clamp and the old battery; 5) fit the new one facing the same way (positive on the right) to match the polarity; 6) connect the positive (+) and finally the negative (−). For the detail, read our guide to replacing the car battery and, if in doubt, the owner's handbook or a main dealer.
As a rough estimate, the Varta N65 typically lasts 4 to 6 years in basic Start-Stop car use; it is a guide figure, not a guaranteed period. What weighs most: temperature (cold makes starts harder and intense heat evaporates the electrolyte), frequent short trips, the condition of the alternator and charging system, power draw while parked and maintenance, not forgetting the type of car and Start-Stop.
Before buying, measure the space in your car: one extra millimetre can stop the hold-down clamp from closing. The Varta N65 takes up 232×173×225 mm (length, width and height, terminals included).
Polarity of the Varta N65: positive on the right. Seen from the front, terminals towards you, the positive (+) is the post with the red ring. Compare it with the battery you are replacing: if it does not match, cables must be lengthened or the system reconfigured, with a risk of short circuit.
Three routes: the "Compatible vehicles" tab on this page, with the vehicles verified by our technical team; your number plate in the finder, from which DGT/DVLA/KBA detect model and engine; and WhatsApp, with make, model, engine and year, during business hours (Mon–Fri 10:00–13:30 and 16:30–18:00 (Spanish time, CET)). The car manufacturer's specifications always take priority over our tables. The N65 fits 126 verified vehicle versions in our database.
Not just any technology will do: an EFB cannot be replaced with a conventional battery in Start-Stop cars. The "Equivalents" section further down lists the recommended alternatives. A battery interchangeable with the Varta N65 must match it on dimensions (232×173×225 mm), polarity (positive on the right), capacity (65 Ah) and cranking current (650 A).
It has the same dimensions, voltage and technology as the N65, although it is not a manufacturer-approved equivalent. Compared with the N65 it has 5 Ah less and 130 A of cold cranking less. It costs 24,00 € less. Check the positive terminal side and the original capacity before ordering; otherwise it is a straight swap.
It has the same dimensions, voltage and technology as the N65, although it is not a manufacturer-approved equivalent. Compared with the N65 it has 5 Ah less and 130 A of cold cranking less. It costs 2,30 € more. Check the positive terminal side and the original capacity before ordering; otherwise it is a straight swap.
Its place is basic Start-Stop without regenerative braking, fitted from new in, for example, Renault Energy TCe, Peugeot/Citroën PureTech, Fiat MultiAir, Hyundai/Kia ISG or Ford EcoBoost. The EFB (Enhanced Flooded Battery) is a reinforced flooded battery: plates with carbon and polyethylene additives and thicker grids, giving it more cycles than a conventional one; for cycles and deep discharges it still sits below an AGM. EFB from the factory? Stay with EFB; AGM is optional and only a marginal improvement. AGM from the factory? Then fit an AGM, because an EFB would fall short. This N65 is an EFB.
Advisable, yes; essential, on most cars, no. Registering it via OBD makes the alternator charge with the optimum profile from the first minute and extends battery life, which matters most on brands with sophisticated BMS such as BMW, Mercedes, Audi, Volvo or Land Rover. A workshop only needs an OBD scanner and a few minutes. DIY apps: VCDS / Carista (VAG), Bimmercode (BMW), iCarsoft. Even if you do not register the Varta N65, the car will start correctly; the profile adjusts within a few days.
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