Batteries for BMW 3 Convertible 325 i 211 hp (petrol, 2006-2013)
Which battery does a BMW 3 Convertible 325 i need?
Specifications and battery: 325 i (211 hp)
Battery for BMW 3 Convertible 325 i (211 hp, petrol, 2006-2013): versions with Start-Stop use a 95 Ah, 850 A AGM battery (353 × 175 × 190 mm), and those without it use a conventional 74 Ah, 680 A battery (278 × 175 × 190 mm). In every case the positive terminal is on the right.
- Brand
-
BMW
- Model
-
3 Convertible (E93)
- Built
- 10/2006 - 2013
- Power
- 155 kW / 211 hp
- Fuel
- Petrol
- Engine size
- 2,996 cc (3 L)
- Cylinders
- 6
- Body type
- Convertible
- Drive
- Rear-Wheel Drive
- Engine codes
- N53 B30 A
- Start-Stop battery
- Depends on version
Battery for this engine
| Version | Technology | Capacity | Cold cranking (EN) | Size (L×W×H) | Polarity |
|---|---|---|---|---|---|
| With Start-Stop | AGM | 95 Ah | 850 A | 353 × 175 × 190 mm | + on the right |
| Without Start-Stop | Conventional | 74 Ah | 680 A | 278 × 175 × 190 mm | + on the right |
The same batteries also fit the 325 i (218 hp) and 325 i (218 hp) engines of this model.
Data: vehicle specifications and the battery manufacturer's application catalogue.
Battery analysis for your BMW 3 Convertible 325 i
Quick answer Depending on the equipment, your car uses one of these two main batteries: AGM 95 Ah (353×175×190 mm), for which we recommend VARTA A5, or Lead-acid 74 Ah (278×175×190 mm): VARTA E11. Before buying, check the Ah on your current battery's label or measure its length.
Batteries in your BMW 3 Convertible 325 i
Measure the length of yours: 353 or 278 mm
Prices and availability updated on 19/10/2026
Based on the batteries we found for your vehicle, our experts help you pick the right one.
📋 What we found
For your BMW 3 Convertible 325 i we found 5 compatible batteries. This list includes 2 Start-Stop batteries and 3 conventional batteries (non Start-Stop).
📏 Battery size
The list contains batteries in different sizes or capacities (Ah). In many cases both variants fit, but it's worth checking your compartment dimensions and the Ah of your original battery before buying. Choose the one with the same dimensions as your current battery: a bigger one may not fit the compartment or the hold-down. If several match your size, the higher capacity gives more headroom for cold starts.
⚡ Battery type for your vehicle
Does your BMW 3 Convertible 325 i have a Start-Stop system? It shuts the engine off at short stops (traffic lights, jams) and restarts it automatically when you release the brake/clutch. If your dashboard has an "A-OFF" button or an engine icon with a circular arrow, it has it.
How do I know if my car has Start-Stop?
What happens if I fit a conventional battery in a Start-Stop car?
🔋 Technology (AGM / EFB)
✓ All Start-Stop batteries in the list are AGM — the most advanced technology. Perfect if your current battery was AGM or EFB: AGM always replaces both. Remember to register it via OBD if your car has a BMS (BMW, Audi, VAG, Mercedes…) so the alternator charges it correctly.
📊 View AGM vs EFB vs Conventional — full comparison
⭐ Our recommendation
For your BMW 3 Convertible 325 i we recommend the VARTA A5 (AGM, 95 Ah). It also offers the highest capacity (Ah) and the highest cranking power (CCA) on the list — more headroom in cold starts and with many consumers. Varta is the world's leading manufacturer of starter batteries and supplies first-equipment (OEM) batteries to the major European car makers.
- Rated 3.7/5 by 6 verified customers.
- Next-day delivery if you order before 6 PM.
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Verified selection
- Class: Car Batteries
- Brand: BMW
- Model: 3 Convertible
- Engine: 325 i
Start-Stop & high energy demand batteries
AGM or EFB battery for start-stop vehicles and for cars with high energy demand (many electrical consumers, frequent starts). More charge cycles, better charge recovery and longer service life.
Does your car have Start-Stop?
Start-Stop switches the engine off at traffic lights. If your car has it, it needs an AGM or EFB battery.
There are no batteries of that type for this engine. Try "Show all" or message us.
Why we recommend the VARTA A5
For €31.21 more you get +90 A cold cranking and +25 Ah capacity.
| RecommendedVARTA A5 | CheapestVARTA A7 | |
|---|---|---|
| Cold cranking | 850 A | 760 A |
| Capacity | 95 Ah | 70 Ah |
| Technology | AGM | AGM |
| Why | Varta brand | — |
| Price | €179.99 | €148.78 |
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Start-Stop battery Varta A5 12V 95Ah 850A AGM
- 12 V
- 95 Ah
- 850 A
- AGM VARTA A5 · 95 Ah · 850 A
Dimensions 353×175×190 mm
- ✓ Varta brand
€179.99
-
Start-Stop battery Varta A7 12V 70Ah 760A AGM
- 12 V
- 70 Ah
- 760 A
- AGM VARTA A7 · 70 Ah · 760 A
Dimensions 278×175×190 mm
€148.78
| Category | Make | Reference | Capacity | Cold cranking | Dimensions | Technology | Price | |
|---|---|---|---|---|---|---|---|---|
| Start-Stop & high energy demand batteries | VARTA | A5 | 95 Ah | 850 A | 353×175×190 mm | AGM | €179.99 | More info |
| Start-Stop & high energy demand batteries | VARTA | A7 | 70 Ah | 760 A | 278×175×190 mm | AGM | €148.78 | More info |
Conventional Battery
This is a standard or conventional battery for vehicles without a start-stop system
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Car battery Varta E11 12V 74Ah 680A
- 12 V
- 74 Ah
- 680 A
Dimensions 278×175×190 mm
- ✓ OEM fitment
€79.13
-
Car battery Varta E44 12V 77Ah 780A
- 12 V
- 77 Ah
- 780 A
Dimensions 278×175×190 mm
€85.40
-
Car battery Tudor TA770 12V 77Ah 760A
- 12 V
- 77 Ah
- 760 A
Dimensions 278×175×190 mm
€74.70
| Category | Make | Reference | Capacity | Cold cranking | Dimensions | Price | |
|---|---|---|---|---|---|---|---|
| Conventional Battery | VARTA | E11 | 74 Ah | 680 A | 278×175×190 mm | €79.13 | More info |
| Conventional Battery | VARTA | E44 | 77 Ah | 780 A | 278×175×190 mm | €85.40 | More info |
| Conventional Battery | TUDOR | TA770 | 77 Ah | 760 A | 278×175×190 mm | €74.70 | More info |
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Frequently asked questions
- Battery for BMW 3 Convertible 325 i (211 hp, petrol, 2006-2013): versions with Start-Stop use a 95 Ah, 850 A AGM battery (353 × 175 × 190 mm), and those without it use a conventional 74 Ah, 680 A battery (278 × 175 × 190 mm). In every case the positive terminal is on the right. Compatible batteries offer 70-95 Ah, 680-850 A (CCA), 12 V, case H6/L3, conventional flooded technology. Browse the compatible battery list below.
- If your Bmw 3 Convertible 325 I has start-stop, regenerative braking or many electrical accessories, you will need an AGM or EFB battery. Check your vehicle's technical specifications.
- To find the exact battery you need, you need to know the make, model, and engine. If your car has a Start-Stop system (the engine shuts off at traffic lights), you need an AGM or EFB battery. An AGM battery can only be replaced with another AGM battery. However, an EFB battery can be replaced with either another EFB or an AGM battery, as the latter is superior.
- The standard battery is the conventional type. The EFB battery withstands start/stop cycles better. The AGM battery is the most durable and is mandatory in cars with Start-Stop and regenerative braking. Never replace an AGM battery with an EFB or standard battery.
- Use the search tool by selecting your vehicle's make and model. Our system automatically filters compatible part numbers verified by our technicians. If you have any questions, contact us via WhatsApp.
- All our batteries come with the legal guarantee provided by consumer law against manufacturing defects. If a battery has a manufacturing defect, it will be replaced at no cost to the user.
- Under normal circumstances, batteries usually arrive within 1 to 2 days of ordering. However, there are some cases where delivery may take a little longer: peak seasons (Black Friday, Christmas, etc.), palletized shipments, occasional stock shortages, etc.
- In mainland Spain and Portugal delivery takes 24 working hours if you order before 6:00 pm and the battery is in stock; for the Balearic Islands and other EU destinations allow 2 to 5 days. Batteries are shipped fully charged and ready to install.
- ⚠ Then you need a battery designed for Start-Stop (EFB or AGM). We have hidden the conventional batteries from the list: fitting them in your car would ruin the battery within months and could damage the alternator. The batteries below are built for the frequent charge/discharge cycles of Start-Stop. 💡 Great. You can buy either a conventional or a Start-Stop (EFB or AGM) battery: a Start-Stop battery is perfectly valid in a non-Start-Stop car and is actually more robust (longer life, better cold-start performance). It is just a bit pricier. On vehicles older than year 2000, an EFB is preferable to an AGM: legacy alternators charge at a fixed voltage without temperature compensation, and an AGM needs a more precise charging profile to avoid losing life quickly — an EFB tolerates the classic alternator profile better. 💡 If in doubt, play it safe: buy a Start-Stop battery (EFB or AGM). It works in Start-Stop cars and non-Start-Stop cars alike, lasts longer and avoids any risk. You only pay a few euros more than a conventional one.
Guides
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This vehicle uses a conventional flooded battery: no BMS registration is required, the alternator will charge it directly.