Varta
Varta B23 · Car battery 12V 45Ah 300A
Reference: BOL-VARTA-B23 · EAN 4016987167724
The Varta B23 (ETN 545 077 030, also written B 23 or 545077030) is a car battery with 12 V, 45 Ah and 300 A cold cranking current, measuring 220 × 135 × 225 mm, with the positive terminal on the right. Need the positive terminal on the left? The same battery is the Varta B24.
Varta B23 · Car battery 12V 45Ah 300A images
- Voltage
- 12V
- Capacity
- 45Ah
- Cold cranking amps (EN)
- 300A
- Technology
- Lead-acid
- Dimensions (L × W × H)
- 220 × 135 × 225 mm
- Polarity
- Positive terminal on the right
Price:
€79.49
Tax included
VAT included. The exact shipping cost is shown in the cart before you pay.
Secure payment
PayPal, bank transfer or cash on delivery, always over an encrypted connection.
Shipping with no surprises
For Spain, Portugal, France, Germany, Italy, Belgium and the Netherlands you see the exact cost before paying. For the rest of Europe we send you a shipping quote, with no obligation.
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 B23 at a glance
The Varta B23 is made for petrol and diesel cars without automatic engine stop. Its job is to start the engine in the cold with margin to spare and keep the car's electronics powered.
At 45 Ah it is a small size: the usual choice for petrol superminis and city cars with little equipment. In the Varta catalogue, the B23 belongs to the Dynamic SLI line. See all Varta batteries
Part numbers and codes for the Varta B23
Shops, garages and catalogues identify the B23 with these codes:
| Commercial reference | B23 (B 23) |
|---|---|
| ETN code | 545077030 (also 545 077 030) |
| EAN | 4016987167724 |
| Case size according to Varta | E2 |
| UK code | 048 |
| Base hold-down | B01 |
| Also known as | Varta B 23 · Varta 545077030 · Varta 545 077 030 |
| Not to be confused with | Varta B20 (45 Ah, 400 A, positive terminal on the left), Varta B24 (45 Ah, 300 A, positive terminal on the left), Varta B33 (45 Ah, 330 A, positive terminal on the left) |
Varta B23 vs B31, B24 and B32: differences
Torn between the B23 and another similar Varta? This is what changes:
| Model | Capacity | Cold cranking (EN) | Dimensions (mm) | Positive | Weight |
|---|---|---|---|---|---|
| Varta B23 (this one) | 45 Ah | 300 A | 220 × 135 × 225 | right | 10.7 kg |
| Varta B31 | 45 Ah | 330 A | 238 × 129 × 227 | right | 11.3 kg |
| Varta B24 | 45 Ah | 300 A | 220 × 135 × 225 | left | 10.7 kg |
| Varta B32 | 45 Ah | 330 A | 238 × 129 × 227 | right | 11.3 kg |
- Varta B31: the same capacity, 30 A more cranking power, a different case (238 × 129 × 227 mm).
- The Varta B24 is the same battery with the positive terminal on the other side: choose it if your current battery has the positive terminal on the left.
- Varta B32: the same capacity, 30 A more cranking power, a different case (238 × 129 × 227 mm).
Equivalents and alternatives to the Varta B23
Batteries that fit the B23's tray with the same polarity; besides other conventional batteries, an EFB or AGM of this size is a valid upgrade for the B23.
| Model | Technology | Capacity | Cold cranking (EN) | Dimensions (mm) |
|---|---|---|---|---|
| Kronobat SD-45.0T | Lead-acid | 45 Ah | 300 A | 219 × 135 × 225 |
| Exide EB450 | Lead-acid | 45 Ah | 330 A | 220 × 135 × 225 |
| Tudor TB450 | Lead-acid | 45 Ah | 330 A | 220 × 135 × 225 |
| Fulmen FB450 | Lead-acid | 45 Ah | 330 A | 220 × 135 × 225 |
| Deta DB450 | Lead-acid | 45 Ah | 330 A | 220 × 135 × 225 |
Inside the B23: lead-acid technology
Inside, the B23 is classic lead-acid: liquid electrolyte and lead plates. It is a robust, well-known technology with a good capacity-to-price ratio, and still the basis of most cars, trucks and traction equipment.
What to look at before buying the B23
- If your car has Start-Stop, the B23 is not the right one: it needs an EFB or an AGM.
- The B23 delivers 300 A cold cranking (EN standard); do not go below what your original battery states.
- Your current battery should say about 45 Ah; a little more is also fine.
- With the terminals facing you, the positive terminal of the B23 is on the right.
- The B23 needs 220 × 135 × 225 mm of space: measure it with the hold-down clamp in place.
Frequently asked questions about the Varta B23
B23 or B31: which one suits me?
Compared with the B23, the Varta B31 has 30 A more cranking power. If your current battery says 330 A or more, choose the B31; if it says 300 A or less, the B23 is enough. Mind the space: the B31 measures 238 × 129 × 227 mm.
Varta B23 or B24: what is the difference?
Only the polarity: the B23 has the positive terminal on the right and the B24 the positive terminal on the left. Capacity (45 Ah), cranking power and dimensions are identical. That is why their ETNs only differ in the middle group: 545 077 030 for the B23 and 545 079 030 for the B24.
What does the code 545 077 030 on the Varta B23 mean?
It is its ETN (European Type Number), also written 545077030. The first three digits (545) encode voltage and capacity: 12 V and 45 Ah (5xx = under 100 Ah, 6xx = 100 to 199 Ah, 7xx = 200 Ah or more). The middle group (077) identifies the specific model within that capacity, and the last three digits (030) multiplied by 10 give the cold cranking current: 300 A. Its twin with the positive terminal on the other side, the Varta B24, is 545 079 030: only the middle group changes.
Can the Varta B23 be used in a car with Start-Stop?
No. The B23 is a lead-acid battery for cars without automatic engine stop; Start-Stop needs an EFB or an AGM.
How much does the Varta B23 weigh?
10.7 kg, with 45 Ah of capacity. For reference, the Varta B31 (45 Ah) weighs 11.3 kg.
Which battery is equivalent to the Varta B23?
With the same dimensions, polarity and similar capacity you have the Kronobat SD-45.0T, Exide EB450 and Tudor TB450. As the B23 is a conventional battery, an EFB or AGM of the same size also works.
Does the new battery need to be registered in the car?
In cars with energy management (common since 2010) it is worth registering the battery in the control unit so it adjusts charging. In older cars you just connect it.
Keep comparing: alternatives to the B23
- All car batteries
- More Varta models
- Kronobat SD-45.0T · 45 Ah, 300 A, 219×135×225 mm
- Exide EB450 · 45 Ah, 330 A, 220×135×225 mm
Reviews
This product has no reviews yet. If you own it, tell us how it has gone: it will help whoever is looking at it now.
