Kronobat SD-70.0B · Car battery 70Ah 640A
Specifications
| Brand | KRONOBAT |
|---|---|
| Part number | SD-70.0B |
| Voltage (V) | 12 |
| Capacity (C20) | 70Ah (c20) |
| Cold cranking amps (EN) | 640A |
| Technology | Lead-acid |
| Length | 278.00 cm |
| Width | 175.00 cm |
| Height | 175.00 cm |
Kronobat SD-70.0B 12V 70Ah 640A is a starter battery with OEM-equivalent quality, designed for modern passenger cars. Delivers reliable cold-cranks even after weeks of inactivity and supports stable auxiliary loads (lights, climate control, infotainment).
Why this car battery?
- Original-equipment qualitywithout dealership prices
- Lasts 4 to 6 yearsbuy once instead of twice
- Real human tech supportif you have any doubts before buying
Where it fits: the Kronobat SD-70.0B is one of our car batteries, belongs to our Kronobat batteries and by capacity it sits among our 70Ah batteries.
The Kronobat SD-70.0B in practice
SD-70.0B vs Kronobat PB-72.0B
The Kronobat SD-70.0B offers 70 Ah and 640 A cold cranking in a 278 × 175 × 175 mm case. The Kronobat PB-72.0B, same brand and technology, goes up to 72 Ah and 680 A and costs €7.35 less. The difference shows on diesels and in hard winters; for a daily-driven petrol car the extra is not needed.
When not to choose it
If your car shuts the engine off at the lights, rule it out: Start-Stop demands EFB or AGM and a conventional battery lasts months in that duty. And never choose fewer Ah or A than the original.

Car battery Kronobat SD-70.0B Standard 70Ah 640A 12V
The Kronobat SD-70.0B car battery is rated at 12 V, 70 Ah and 640 A of cold cranking current (EN) from the Standard range, and is designed for passenger cars with conventional starting, without a Start-Stop system. Its 278 × 175 × 175 mm and the positive terminal on the right make it the exact replacement for the 70 Ah battery fitted as standard to many cars.
In short: the Kronobat SD-70.0B (70 Ah, 640 A, 278 × 175 × 175 mm, positive terminal on the right). It is a conventional battery for cars without Start-Stop: if yours has Start-Stop, it needs an EFB or AGM battery of the same size.
- Designed to last several years under normal daily use.
- Low self-discharge: copes with long stops without losing charge.
- Stable voltage for the vehicle electronics (ECU, sensors, climate control).
- Good balance of capacity, cranking power and price.
What the Kronobat SD-70.0B is for
The Kronobat SD-70.0B covers the needs of passenger cars with conventional starting, without a Start-Stop system: reliable starting, stable voltage for the electronics and a service life of several years in daily use. Check that it matches your current battery in size and terminal position. Check that it matches your current battery in dimensions, terminals and hold-down: this reference has a weight of 16.40 kg and 1.0 terminals.
The Kronobat SD-70.0B: Standard range and conventional lead-acid technology
The Standard is the Kronobat range the SD-70.0B belongs to: it shares the same construction and quality criteria with the rest of the series, and varies in capacity and format to suit each vehicle.
The conventional lead-acid battery remains the most widespread technology thanks to its balance of capacity, cranking current and price. Well maintained and kept charged, it offers years of reliable service in vehicles without Start-Stop.
Size, terminals and hold-down of the Kronobat SD-70.0B
In terms of format, the Kronobat SD-70.0B measures 278 × 175 × 175 mm (length × width × height) and weighs 16.40 kg. The positive terminal on the right decides which side the cables end up on: it is the detail that causes most buying mistakes, so check it before ordering. It uses 1.0 terminals, the system that anchors and connects it in the vehicle. For a direct replacement, the current battery tray must accept these dimensions and the same terminal layout; otherwise adapters will be needed or the hold-down will change.
Kronobat: the maker behind the SD-70.0B
With Kronobat we offer an own-brand alternative without compromising on quality: European manufacturing, original-equipment controls and the direct backing of baterias.com for warranty and advice. We guarantee that every Kronobat arrives new, charged and with the manufacturer's full warranty.
Usage and maintenance tips
Avoid leaving lights or accessories on with the engine off: most batteries fail not through defects but through repeated deep discharges. In normal daily use the alternator keeps the battery charged; if the car stands for weeks, a maintenance charge once a month prevents deep discharge.
Manufacturer's warranty
The Kronobat SD-70.0B comes with the manufacturer's official warranty against manufacturing defects; the exact period is stated in the brand's conditions. If it fails through a defect within the period, we replace it free of charge.
Shipping, delivery and returns
Same-day dispatch from our warehouse for in-stock orders placed before 6:00 pm: 24-48 working hours in mainland Spain and Portugal, 3 to 5 days in the islands and the rest of Europe. Returns are accepted for 14 days if the battery has not been used (free collection on the Iberian mainland). You will receive tracking by email.
Data sheet
-
ReferenceSD-70.0B
-
ModelSTANDARD
-
Voltage (V)12
-
Length278.00 cm
-
Width175.00 cm
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Height175.00 cm
-
Weight16.40 Kgs
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TechnologyLead-acid
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Terminal layoutPositive terminal on the right
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Terminal type1.0
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Cold cranking amps (EN)640A
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Capacity (C20)70Ah (c20)
Specific References
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MPNSD-70.0B
Kronobat SD-70.0B: alternatives with the same dimensions
Batteries from our catalogue with the same dimensions, voltage and technology as the Kronobat SD-70.0B 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 | |||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Kronobat
SD-70.0B
This battery
|
12V 70Ah 640A | Lead-acid | €65.95 | |||||||||||||||||||||
Kronobat
MS-74.0
Same size |
12V 74Ah 750A | Lead-acid | €74.10 +€8.15 | |||||||||||||||||||||
| ||||||||||||||||||||||||
| SD-70.0B | MS-74.0 | |
|---|---|---|
| Capacity | 70 Ah | 74 Ah |
| Cold cranking (EN) | 640 A | 750 A |
| Technology | Lead-acid | Lead-acid |
| Dimensions (mm) | 278 × 175 × 175 | 278 × 175 × 175 |
| Positive terminal | Positive terminal on the right | Positive terminal on the right |
| Price | €65.95 | €74.10 |
Exide
EA722
Same size
Kronobat SD-70.0B vs Exide EA722
Same size · −€6.75
It has the same dimensions, voltage and technology as the SD-70.0B, although it is not a manufacturer-approved equivalent. Compared with the SD-70.0B it has 2 Ah more and 80 A of cold cranking more. It costs €6.75 less. Check the positive terminal side and the original capacity before ordering; otherwise it is a straight swap.
| SD-70.0B | EA722 | |
|---|---|---|
| Capacity | 70 Ah | 72 Ah |
| Cold cranking (EN) | 640 A | 720 A |
| Technology | Lead-acid | Lead-acid |
| Dimensions (mm) | 278 × 175 × 175 | 278 × 175 × 175 |
| Positive terminal | Positive terminal on the right | Positive terminal on the right |
| Price | €65.95 | €59.20 |
Varta
E38
Same size
Kronobat SD-70.0B vs Varta E38
Same size · +€24.25
It has the same dimensions, voltage and technology as the SD-70.0B, although it is not a manufacturer-approved equivalent. Compared with the SD-70.0B it has 4 Ah more and 110 A of cold cranking more. It costs €24.25 more. Check the positive terminal side and the original capacity before ordering; otherwise it is a straight swap.
| SD-70.0B | E38 | |
|---|---|---|
| Capacity | 70 Ah | 74 Ah |
| Cold cranking (EN) | 640 A | 750 A |
| Technology | Lead-acid | Lead-acid |
| Dimensions (mm) | 278 × 175 × 175 | 278 × 175 × 175 |
| Positive terminal | Positive terminal on the right | Positive terminal on the right |
| Price | €65.95 | €90.20 |
Varta
E9
Same size
Kronobat SD-70.0B vs Varta E9
Same size · +€19.95
Same case and same technology as the SD-70.0B: an alternative by size, not an official equivalent. Compared with the SD-70.0B it has the same Ah and cranking power. It costs €19.95 more. If the polarity matches and your car had a similar capacity, it works as a replacement; if in doubt, ask us with your model.
| SD-70.0B | E9 | |
|---|---|---|
| Capacity | 70 Ah | 70 Ah |
| Cold cranking (EN) | 640 A | 640 A |
| Technology | Lead-acid | Lead-acid |
| Dimensions (mm) | 278 × 175 × 175 | 278 × 175 × 175 |
| Positive terminal | Positive terminal on the right | Positive terminal on the right |
| Price | €65.95 | €85.90 |
Varta
E43
Same size
Kronobat SD-70.0B vs Varta E43
Same size · +€24.25
It has the same dimensions, voltage and technology as the SD-70.0B, although it is not a manufacturer-approved equivalent. Compared with the SD-70.0B it has 2 Ah more and 40 A of cold cranking more. It costs €24.25 more. Check the positive terminal side and the original capacity before ordering; otherwise it is a straight swap.
| SD-70.0B | E43 | |
|---|---|---|
| Capacity | 70 Ah | 72 Ah |
| Cold cranking (EN) | 640 A | 680 A |
| Technology | Lead-acid | Lead-acid |
| Dimensions (mm) | 278 × 175 × 175 | 278 × 175 × 175 |
| Positive terminal | Positive terminal on the right | Positive terminal on the right |
| Price | €65.95 | €90.20 |
Tudor
TA722
Same size
Exide
EB712
Same size
Tudor
TB712
Same size Automatic selection by dimensions (±3 mm), voltage, technology and capacity (−10 % / +20 %). Official manufacturer warranty on every option.
Other 70Ah batteries: We stock 30 models of 70 Ah to compare by price, technology and cold cranking: see all 70Ah batteries. Same size (278 × 175 × 175 mm): batteries of 278 × 175 × 175 mm.
Recommended accessories
Fitting it yourself? Step-by-step guide to replacing the battery →
Frequently asked questions
How is the Kronobat SD-70.0B battery installed in the vehicle?
In most cars it fits in 15-30 minutes with a 10 mm wrench; if the battery is under the seat or in the boot the time can double. See the step-by-step guide on our blog. Quick summary: 1) switch off the engine and remove the key; 2) locate the original battery (engine bay, boot or under seat); 3) disconnect the negative (−) terminal first, then the positive (+); 4) loosen the hold-down clamp and remove the old battery; 5) fit the new one in the same orientation — with positive on the right match the polarity shown on the product sheet; 6) connect the positive (+) first, then the negative (−).
How long does the Kronobat SD-70.0B battery last?
Expected lifespan of the Kronobat SD-70.0B is 4 to 6 years in regular car use without Start-Stop. In cold regions it drops slightly due to cold-start stress; in very hot regions it also drops because of electrolyte evaporation. To extend its life: avoid deep discharges (headlights on with engine off), have the alternator checked yearly, and keep the battery clean and properly secured.
What are the dimensions of the Kronobat SD-70.0B battery?
Dimensions (length × width × height) are 278×175×175 mm — also written as 278x175x175 mm and correspond to the European LB3 case size — following the European DIN standard. Always measure the space in your car before buying: even one extra millimetre can prevent the hold-down clamp from closing. The height shown includes the terminals.
Which side is the positive terminal on this battery?
Polarity: positive on the right. To identify it, place the battery in front of you with the terminals facing you and check which side the positive (+, marked with a red ring) is on. Before buying, verify the polarity matches your current battery: switching polarity forces longer cables or system reconfiguration, with short-circuit risk.
Does this battery fit my car?
Three options to confirm: 1) enter your number plate in the finder (DGT/DVLA/KBA auto-detect your model and engine); 2) check the "Compatible vehicles" tab on this page, where we list every vehicle verified by our technical team; 3) if you cannot find your model, message us on WhatsApp with brand, model, engine and year — we reply during business hours (Mon–Fri 10:00–13:30 and 16:30–18:00 (Spanish time, CET)). The SD-70.0B typically fits a wide range of European vehicles thanks to its standard DIN case format.
What are the equivalents of the SD-70.0B model?
Directly interchangeable batteries (same dimensions, same polarity, same Ah and CCA) are the OEM equivalents from leading brands: Bosch, Tudor, Exide and, depending on the model, Banner or Yuasa. Exact equivalence depends on technology — an EFB cannot be replaced with a conventional battery in Start-Stop cars. See the "Equivalents" section to view recommended options at the same performance level.
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