Varta
Varta A9 · Start-Stop battery 12V 50Ah 540A
Reference: BOL-VARTA-A9 · EAN 4016987167212
The Varta A9 (ETN 550 901 054, also written A 9 or 550901054) is a Start-Stop battery (AGM) with 12 V, 50 Ah and 540 A cold cranking current, case size L1 (207 × 175 × 190 mm), with the positive terminal on the right.
Varta A9 · Start-Stop battery 12V 50Ah 540A images
- Voltage
- 12V
- Capacity
- 50Ah
- Cold cranking amps (EN)
- 540A
- Technology
- AGM
- Dimensions (L × W × H)
- 207 × 175 × 190 mm
- Polarity
- Positive terminal on the right
Price:
€116.24
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14 days to return your order
If it does not fit, you have 14 days from delivery to return it unused.
Does it fit your vehicle? Check by number plate or VIN
Enter your number plate or chassis number (VIN): we check whether this battery is compatible with your vehicle.
The Varta A9 at a glance
The Varta A9 is a battery for cars with Start-Stop: it withstands many more starting and partial-discharge cycles than a conventional battery and powers the electronics every time the engine stops at the lights. In a Start-Stop car, the A9 keeps the radio, climate control and lights running with the engine off without losing capacity.
At 50 Ah it covers petrol compacts and small diesels, the best-selling format in Europe. Varta lists the A9 in its Dynamic AGM line. The full range of Varta batteries
Part numbers and codes for the Varta A9
Look for any of these A9 codes on your current battery or in the manufacturer's catalogue:
| Commercial reference | A9 (A 9) |
|---|---|
| ETN code | 550901054 (also 550 901 054) |
| EAN | 4016987167212 |
| Case size (EN) | L1 |
| Case size according to Varta | H4/L1 |
| UK code | 012AGM |
| Base hold-down | B13 |
| Also known as | Varta A 9 · Varta 550901054 · Varta 550 901 054 |
Varta A9 vs A8: differences
Torn between the A9 and another similar Varta? This is what changes:
| Model | Capacity | Cold cranking (EN) | Dimensions (mm) | Positive | Weight |
|---|---|---|---|---|---|
| Varta A9 (this one) | 50 Ah | 540 A | 207 × 175 × 190 | right | 14.72 kg |
| Varta A8 | 60 Ah | 680 A | 242 × 175 × 190 | right | 17.29 kg |
- Varta A8: 10 Ah more, 140 A more cranking power, a different case (242 × 175 × 190 mm).
Equivalents and alternatives to the Varta A9
We have no other battery with exactly the dimensions and polarity of the A9. Browse the rest of our start-Stop batteries (AGM and EFB) to compare close options.
Inside the A9: AGM technology
The A9 is AGM: the electrolyte is absorbed in glass fibre mats, so it is sealed and spill-proof. Being sealed, the A9 can be fitted in the boot or under a seat with no risk of spills.
Check this before ordering the Varta A9
- The A9 is AGM: it replaces an AGM or an EFB of the same size. You can swap an EFB for an AGM, but not an AGM for an EFB.
- The A9 delivers 540 A cold cranking (EN standard); do not go below what your original battery states.
- With 50 Ah, the A9 replaces an original battery of that capacity or slightly less.
- The A9 has the positive terminal on the right: compare it with your current battery.
- Measure the space: the A9 takes up 207 × 175 × 190 mm (European case size L1).
Frequently asked questions about the Varta A9
A9 or A8: which one suits me?
Compared with the A9, the Varta A8 has 10 Ah more and 140 A more cranking power. If your current battery says 680 A or more, choose the A8; if it says 540 A or less, the A9 is enough. Mind the space: the A8 measures 242 × 175 × 190 mm.
What does the code 550 901 054 on the Varta A9 mean?
It is its ETN (European Type Number), also written 550901054. The first three digits (550) encode voltage and capacity: 12 V and 50 Ah (5xx = under 100 Ah, 6xx = 100 to 199 Ah, 7xx = 200 Ah or more). The middle group (901) identifies the specific model within that capacity, and the last three digits (054) multiplied by 10 give the cold cranking current: 540 A.
Can the Varta A9 be used in a car with Start-Stop?
Yes. As an AGM battery, the A9 handles automatic engine stop and brake energy recovery, and it can replace an EFB of the same size.
How much does the Varta A9 weigh?
14.72 kg, with 50 Ah of capacity. For reference, the Varta A8 (60 Ah) weighs 17.29 kg.
What case size is the Varta A9?
Case size L1: 207 × 175 × 190 mm (Varta lists it as H4/L1). The A9 fits any standard L1 battery tray.
Which side is the positive terminal on the Varta A9?
On the A9, the positive terminal is on the right with the terminals facing you: compare it with your current battery, because with reversed polarity the cables will not reach.
Keep comparing: alternatives to the A9
- Other start-Stop batteries (AGM and EFB)
- More Varta models
- Exide EK508 · 50 Ah, 800 A, 260×173×206 mm
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