Batteries for BMW 3 Coupe 320 i 150 hp
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BMW · 3 CoupeWhich battery does a BMW 3 Coupe 320 i need?
Specifications and battery: 320 i (150 hp)
BMW 3 Coupe 320 i (150 hp): depending on the equipment, it takes a conventional 77 Ah, 780 A battery (278 × 175 × 190 mm) or a 80 Ah, 800 A AGM battery (315 × 175 × 190 mm). Measure your current battery before choosing. In every case the positive terminal is on the right.
- Start-Stop battery
- Not required
Battery for this engine
| Version | Technology | Capacity | Cold cranking (EN) | Size (L×W×H) | Polarity |
|---|---|---|---|---|---|
| Depending on equipment 1 | Conventional | 77 Ah | 780 A | 278 × 175 × 190 mm | + on the right |
| Depending on equipment 2 | AGM | 80 Ah | 800 A | 315 × 175 × 190 mm | + on the right |
The same batteries also fit the 325 i (218 hp) and 335 xi (306 hp) engines of this model.
Data: vehicle specifications and the battery manufacturer's application catalogue.
EFB, AGM or conventional for this engine?
The BMW 3 Coupe 320 i has no Start-Stop: a conventional lead-acid battery of around 77 Ah is enough and the cheapest option. An EFB or AGM also works (it lasts longer and copes better with short trips), but it is not essential.
Battery analysis for your BMW 3 Coupe 320 i
Quick answer Depending on the equipment, your car uses one of these two main batteries. The most common option is ordinary lead-acid 77 Ah (278×175×190 mm): we recommend VARTA E44. Other units use AGM 80 Ah (315×175×190 mm): VARTA A6. Before buying, check the Ah on your current battery's label or measure its length.
Batteries in your BMW 3 Coupe 320 i
Measure the length of yours: 278 or 315 mm
Prices and availability updated on 28/10/2026
Based on the batteries we found for your vehicle, our experts help you pick the right one.
📋 What we found
For your BMW 3 Coupe 320 i we found 4 compatible batteries. This list includes 2 Start-Stop batteries and 2 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
✓ Your BMW 3 Coupe 320 i does not need a Start-Stop battery. The conventional ones shown fit your vehicle and are the most affordable option. If you want a higher-quality, longer-lasting battery, you can also fit an EFB or AGM as an upgrade — they are fully compatible and last more years.
🔋 Technology (AGM / EFB)
✓ All Start-Stop batteries in the list are AGM. If your current battery is AGM, this is the right replacement. If it is EFB, an AGM is also a valid upgrade, but on cars with battery management (BMW, Mercedes, VAG group…) it must be registered and coded for the new technology with a diagnostic tool; otherwise the car keeps charging it as an EFB.
📊 View AGM vs EFB vs Conventional — full comparison
⭐ Our recommendation
For your BMW 3 Coupe 320 i we recommend the VARTA E44 (ordinary lead-acid, 77 Ah). It's the battery recommended by the vehicle manufacturer for your BMW 3 Coupe 320 i — the OEM equivalent. Varta is the world's leading manufacturer of starter batteries and supplies first-equipment (OEM) batteries to the major European car makers.
- Rated 4.8/5 by 65 verified customers.
- Get it tomorrow if you order before 6 PM.
- 43% cheaper than the most expensive option in the list.
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Verified selection
- Class: Car Batteries
- Brand: BMW
- Model: 3 Coupe
- Engine: 320 i
Conventional Battery
This is a standard or conventional battery for vehicles without a start-stop system
Compare the technologies available for your car
A higher technology withstands more charge and discharge cycles, according to manufacturers. If your car has Start-Stop, it needs EFB or AGM.
- Conventional (lead-acid) For normal use in cars without Start-Stop. from €81.90 View TUDOR TA770
- AGM Up to 3× more cycles than a conventional battery. The highest performance, ideal with lots of electrical equipment. from €134.95 +€53.05 View VARTA A7
Why we recommend the VARTA E44
For €3.50 more you get +20 A cold cranking.
| RecommendedVARTA E44 | CheapestTUDOR TA770 | |
|---|---|---|
| Cold cranking | 780 A | 760 A |
| Capacity | 77 Ah | 77 Ah |
| Technology | Conventional | Conventional |
| Why | OEM fitment | — |
| Price | €85.40 | €81.90 |
-
Car battery Varta E44 12V 77Ah 780A
- 12 V
- 77 Ah
- 780 A
Dimensions 278×175×190 mm
- ✓ OEM fitment
€85.40
-
Car battery Tudor TA770 12V 77Ah 760A
- 12 V
- 77 Ah
- 760 A
Dimensions 278×175×190 mm
€81.90
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.
-
Start-Stop battery Varta A6 12V 80Ah 800A AGM
- 12 V
- 80 Ah
- 800 A
- AGM VARTA A6 · 80 Ah · 800 A
Dimensions 315×175×190 mm
- ✓ Varta brand
€149.95
-
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
€134.95
| Category | Make | Reference | Capacity | Cold cranking | Dimensions | Technology | Price | |
|---|---|---|---|---|---|---|---|---|
| Start-Stop & high energy demand batteries | VARTA | A6 | 80 Ah | 800 A | 315×175×190 mm | AGM | €149.95 | More info |
| Start-Stop & high energy demand batteries | VARTA | A7 | 70 Ah | 760 A | 278×175×190 mm | AGM | €134.95 | More info |
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Chargers
Chargers for your battery
Frequently asked questions
- Yes, you can install a higher capacity (Ah) battery as long as the physical dimensions fit your BMW 3 Coupe 320 i battery compartment and the positive terminal position matches.
- The Bmw 3 Coupe 320 I requires a battery with the correct capacity (Ah) and Cold Cranking Amps (CCA) for this engine. Compatible batteries offer 70-80 Ah, 760-800 A (CCA), 12 V, case H6/L3, conventional flooded technology. Browse the compatible battery list below.
- The exact Ah rating for the Bmw 3 Coupe 320 I depends on the vehicle's original electrical consumers. Compatible batteries offer 70-80 Ah, 760-800 A (CCA), 12 V, case H6/L3, conventional flooded technology. Use our finder for a precise recommendation.
- You need the make, model and engine. If your car has Start-Stop (the engine switches off at traffic lights), it needs an EFB or an AGM battery, depending on what it came with: if it has an AGM, fit another AGM; if it has an EFB, another EFB or an AGM. On cars with battery management (BMW, Mercedes, VAG group…), moving from EFB to AGM requires coding the new battery. Without Start-Stop, a conventional battery is fine, or an EFB or AGM if you want a longer life.
- A conventional (lead-acid) battery is for cars without Start-Stop. An EFB is a reinforced conventional battery for basic Start-Stop. An AGM offers the highest performance and is fitted as standard on cars with advanced Start-Stop, regenerative braking or high electrical demand. Replacement rule: an AGM only with another AGM; an EFB with another EFB or an AGM; a conventional battery with any of the three. Never move down in technology.
- 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 delivery takes 24-48 working hours if you order before 6:00 pm (Monday to Friday) and the battery is in stock; mainland Portugal takes 1 to 4 working days, the Balearic Islands 2 to 5 working days and other EU destinations 4 to 7 working days. Batteries are shipped fully charged and ready to install.
Guides
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This vehicle has no Start-Stop. The manufacturer requires the new battery to be registered via OBD with a diagnostic tool and, if you change technology (EFB → AGM), coded; without this step it lasts much less.