# Buy batteries online · Battery shop \| bateriasonline

> Online battery shop: buy car, motorbike, truck, boat and Start-Stop batteries by VIN or vehicle model, with VAT included and 14 days to return your order.

- **Canonical URL**: https://bateriasonline.es/en/
- **Language**: en
- **Last update**: 2026-11-10

## About us

bateriasonline.es is the online battery shop of Kronotech Solutions S.L., a company based in Málaga (Spain). It sells starter, deep-cycle, traction and stationary batteries for cars, motorcycles, trucks, marine, solar and industry, plus chargers, testers and jump starters. It ships at set rates to Spain, Portugal, France, Germany, Italy, Belgium and the Netherlands, and to the rest of Europe on a shipping quote.

## Find your battery

Find the battery that fits your vehicle from its number plate or its chassis number (VIN):

| Tool | When to use it | URL |
|---|---|---|
| Number-plate finder | You have a Spanish, Portuguese or Italian plate | https://bateriasonline.es/en/battery-finder-plate-or-vin |
| Chassis number or VIN finder | Imported or foreign-registered vehicle (France, Germany, UK…), or no plate to hand | https://bateriasonline.es/en/battery-finder-plate-or-vin?modo=vin |

**Chassis number or VIN:** 17 characters (letters and digits, never I, O or Q; international standard ISO 3779) that identify any vehicle in the world. It is in field E of the registration certificate, on the technical data sheet, at the base of the windscreen and on the driver's door pillar. From the VIN we identify the make, model and engine and show only compatible batteries, in seconds, free and without registration: https://bateriasonline.es/en/battery-finder-plate-or-vin?modo=vin

## Brands we distribute

- [Exide batteries](https://bateriasonline.es/en/exide-batteries)
- [Tudor batteries](https://bateriasonline.es/en/tudor-batteries)
- [Fulmen batteries](https://bateriasonline.es/en/fulmen-batteries)
- [Deta batteries](https://bateriasonline.es/en/deta-batteries)
- [Varta batteries](https://bateriasonline.es/en/varta-batteries)
- [Lucas batteries](https://bateriasonline.es/en/lucas-batteries)
- [GNB batteries](https://bateriasonline.es/en/gnb-batteries)
- [Trojan batteries](https://bateriasonline.es/en/trojan-batteries)
- [Deka batteries](https://bateriasonline.es/en/deka-batteries)
- [MK batteries](https://bateriasonline.es/en/mk-batteries)
- [Odyssey batteries](https://bateriasonline.es/en/odyssey-batteries)
- [Genesis batteries](https://bateriasonline.es/en/genesis-batteries)
- [Cyclon batteries](https://bateriasonline.es/en/cyclon-batteries)
- [PowerSafe batteries](https://bateriasonline.es/en/powersafe-batteries)
- [Fulbat batteries](https://bateriasonline.es/en/fulbat-batteries)
- [Long batteries](https://bateriasonline.es/en/long-batteries)
- [Kronobat batteries](https://bateriasonline.es/en/kronobat-batteries)
- [Fullriver batteries](https://bateriasonline.es/en/fullriver-batteries)
- [Ritar batteries](https://bateriasonline.es/en/ritar-batteries)
- [Leoch batteries](https://bateriasonline.es/en/leoch-batteries)
- [Optima batteries](https://bateriasonline.es/en/optima-batteries)
- [Q-Battery Batteries](https://bateriasonline.es/en/q-battery-batteries)
- [Motobatt batteries](https://bateriasonline.es/en/motobatt-batteries)
- [Sonnenschein Batteries](https://bateriasonline.es/en/sonnenschein-batteries)
- [Absaar battery chargers](https://bateriasonline.es/en/absaar-battery-chargers)
- [Rasmus Marine jump starters](https://bateriasonline.es/en/rasmus-marine-jump-starters)
- [Dicar jump starters](https://bateriasonline.es/en/dicar-jump-starters)
- [NOCO Jump Starters](https://bateriasonline.es/en/noco-jump-starters)

## Categories

- [Car batteries](https://bateriasonline.es/en/car-batteries)
- [Start-Stop batteries (AGM and EFB)](https://bateriasonline.es/en/start-stop-batteries-agm-efb)
- [Motorcycle batteries](https://bateriasonline.es/en/motorcycle-batteries)
- [Truck, commercial and agricultural vehicle batteries](https://bateriasonline.es/en/truck-agricultural-batteries)
- [Marine and boat batteries](https://bateriasonline.es/en/marine-boat-batteries)
- [Leisure batteries for motorhomes and caravans](https://bateriasonline.es/en/leisure-batteries-motorhome-caravan)
- [Electric wheelchair batteries](https://bateriasonline.es/en/electric-wheelchair-batteries)
- [Solar batteries for off-grid systems](https://bateriasonline.es/en/off-grid-solar-batteries)
- [Forklift and pallet truck batteries](https://bateriasonline.es/en/forklift-pallet-truck-batteries)
- [UPS batteries](https://bateriasonline.es/en/ups-batteries)
- [Battery chargers](https://bateriasonline.es/en/battery-chargers)
- [Battery testers](https://bateriasonline.es/en/battery-testers)
- [Jump starters and battery boosters](https://bateriasonline.es/en/jump-starters-battery-boosters)

## Services

- Official manufacturer warranty on every battery, plus the legal guarantee of conformity.
- 14-day returns.
- Courier shipping at set rates to Spain, Portugal, France, Germany, Italy, Belgium and the Netherlands, and on a quote to the rest of Europe; industrial transport for heavy batteries. Shipping costs are calculated in the cart from weight and destination.
- Secure payment: PayPal; in Spain, also bank transfer or cash on delivery.
- Technical advice by phone and email.

## Frequently asked questions

### What battery does my car take?

At baterias.com you can locate the battery compatible with your vehicle in four ways: enter your registration plate or chassis number (VIN) in our search tool (it returns the original equivalent battery in seconds; the VIN works for vehicles from any country), browse by car make and model, enter the OEM reference or part number of your current battery, or filter by technical specifications in the comparator. The system cross-references over 25,000 vehicles with the leading manufacturers database to guarantee correct voltage, capacity (Ah), cold cranking amps (CCA) and polarity.

### What is the difference between AGM, EFB and standard lead-acid batteries?

Conventional lead-acid batteries are the most affordable option and are fitted to cars without start-stop. EFB (Enhanced Flooded Battery) is an upgraded technology that withstands more charge-discharge cycles and suits basic start-stop systems. AGM (Absorbent Glass Mat) batteries hold the electrolyte in fibreglass, deliver twice the cycle life of EFB and are mandatory on vehicles with advanced start-stop and regenerative braking. Rule of thumb: if your car has regenerative braking you need AGM; if it has only basic start-stop, EFB is sufficient.

### How long does delivery take?

Standard shipping within mainland Spain and Portugal takes 24 to 48 working hours. We also offer express delivery before 5 pm on the next working day for orders placed before 5:30 pm (excluding weekends and bank holidays). Delivery to the Balearic Islands usually takes 2 to 5 working days, and to the rest of the European Union (France, Germany, Italy, Belgium, the Netherlands…) 4 to 7 working days depending on the destination. We do not ship to the Canary Islands, Ceuta, Melilla, Madeira or the Azores.

### Do you offer at-home battery installation? In which cities?

Yes. We provide a professional at-home battery installation service in Madrid, Barcelona, Malaga, Seville, Valencia and Zaragoza. A qualified technician travels to the customer location or to wherever the vehicle is parked, fits the battery in 30 to 60 minutes and takes the old battery away for free recycling. The service is usually delivered within 1 to 3 hours of order confirmation.

### What warranty do your batteries come with?

Every battery sold at baterias.com is covered by the legal guarantee against manufacturing defects, as provided by consumer law. We only sell brand-new batteries from brands such as Varta, Tudor, Exide and Optima, with recent production dates (no more than 6 months old), never refurbished or old stock.

### Can I return the battery if I ordered the wrong model?

Yes. Within mainland Spain and Portugal, returns are free for the first 14 calendar days after delivery, provided the battery has not been installed or modified. If you order the wrong model, contact customer service and we will arrange free collection and dispatch the correct battery. For the rest of the European Union, returns are accepted within the same 14-day window but the return shipping cost is the customer responsibility.

### How can I tell if my car battery is failing?

The clearest signs that a battery is at the end of its life are: the engine cranks slowly or takes longer than usual to start (especially in cold weather), the dashboard or headlights look dim at idle, the start-stop system stops working and a warning light appears, or the car simply will not start after a couple of days without use. Age is also a clue: most batteries perform well between 3 and 5 years; if yours is over 4-5 years old it is worth checking it with a tester or having it inspected before being stranded.

### What do Ah, CCA and RC mean on a battery?

They are the three key electrical parameters of any starter battery. **Ah (amp-hour)** is the capacity: how much energy it stores (more Ah = more reserve for consumers). **CCA (Cold Cranking Amps)** is the cold cranking current: the power it delivers at -18 °C for 30 seconds without voltage falling below 7.2 V (more CCA = better cold starts). **RC (Reserve Capacity)** is the reserve capacity: the minutes the battery delivers 25 A at 25 °C before voltage drops below 10.5 V (it tells you how long it lasts if the alternator fails). As a rule, match the original Ah and CCA from the manufacturer; raising the CCA is safe, lowering it is not.

### Can I fit a battery with higher capacity (Ah) than the original one?

Yes, as long as the higher-capacity battery fits physically in the tray (same length × width × height and same polarity), has the same voltage (12 V) and the same terminal type. Increasing 5 to 15 Ah over the original is completely safe and provides more reserve for cars with many accessory loads (audio, navigation, heating, camping fridges). What you should NOT do is reduce capacity or CCA below the manufacturer specification: you would lose margin on cold starts and the alternator may not charge correctly.

### Does my start-stop car need an AGM or is an EFB enough?

It depends on the level of start-stop. If your car has basic start-stop (it switches the engine off at long stops and starts it again when you press the clutch/brake) an **EFB** is usually enough. If your car has advanced start-stop with **regenerative braking (micro-hybrid, mild-hybrid)** an **AGM** is mandatory: that system charges the battery at very high currents that only an electrolyte immobilised in fibreglass can withstand. The safest option is to enter your registration plate or chassis number (VIN) in our finder: it automatically detects the technology your vehicle requires from its equipment.

### How long does a car battery last?

A typical lead-acid or EFB battery lasts 3-5 years, an AGM can last 6-8 years and a cyclic gel or LiFePO4 battery up to 10 years in leisure use. Real lifetime depends on several factors: climate (extreme heat speeds up sulphation), driving patterns (short trips discharge more than the alternator can replace), number of starts per day (urban start-stop), accessory loads (high-power audio, fridges) and the health of the charging system. For seldom-used cars we recommend a battery maintainer during long idle periods to extend life.

### Which payment methods do you accept?

At baterias.com we accept several secure payment methods, all in euros and protected with TLS encryption: **credit or debit card** (Visa, Mastercard) processed through a secure gateway with 3D Secure verification — the fastest option, lets us process the order immediately for 24-hour delivery; **Bizum** (Spain only) for customers with Spanish mobile banking, one of the quickest ways to pay small and medium amounts; **PayPal** to pay without sharing your card details and with PayPal buyer protection; **bank transfer** with the bank details sent by email after purchase, the order reserved until we confirm the deposit; and **cash on delivery** to pay the courier at the moment of delivery (subject to service coverage in your area and a small handling surcharge). For trade customers (workshops, fleets, fitters) we offer account with invoice and credit terms; contact us to open a B2B account.

## How to change a car battery step by step

Guide to replacing your car battery at home safely: required tools, electrical safety, removing the old battery and fitting the new one.

**Total time:** 30 min

**Supplies:**

- New battery compatible with your vehicle
- Protective gloves
- Safety glasses

**Tools:**

- 10 mm spanner or socket wrench
- Wire brush or terminal cleaner
- OBD memory saver (optional)

**Steps:**

1. **Turn off the engine and all electrical consumers** — Park on a level, well-ventilated surface, turn off the engine, remove the key from the ignition and make sure the lights, radio and air conditioning are switched off. Wait 1-2 minutes for the capacitors to discharge.
2. **Locate the battery and identify the terminals** — Open the bonnet and locate the battery (in some models it sits under a seat or in the boot). Identify the positive terminal (+, usually with a red cap) and the negative terminal (-, black). Check the polarity before starting.
3. **Disconnect the negative terminal first** — Loosen the negative terminal (-) nut with the 10 mm wrench and lift the cable away from the battery. Always disconnect the negative first to avoid short circuits if the spanner touches the chassis. Then disconnect the positive terminal (+).
4. **Remove the hold-down and lift out the old battery** — Remove the brackets or straps holding the battery in place. Lift the old battery out carefully: it weighs 12 to 25 kg and contains acid. Keep it upright at all times to avoid spills.
5. **Clean the terminals and fit the new battery** — Clean the terminals and cable lugs with a wire brush to remove rust and sulphate. Place the new battery in the tray respecting the original polarity (positive and negative on the same side as the old one). Refit the hold-down.
6. **Connect the positive terminal first** — Connect the positive (+) cable first, then the negative (-). Tighten the nuts firmly but without overtightening to avoid damaging the post. Apply a little terminal grease if available.
7. **Start the car and reconfigure systems if needed** — Start the engine to check everything works. On vehicles with a BMS (start-stop, AGM or EFB) it is recommended to register/code the new battery with an OBD scanner so the alternator charges it correctly. Reset the clock, radio and electric windows if memory was lost.

## Contact

- **Phone**: +34 951 870 157
- **Email**: comercial@bateriasonline.es

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*bateriasonline.es — Batteries and accessories · 2026-11-10*