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Battery chargers 12V to 220V

12V battery chargers are the perfect solution for keeping your batteries always ready and in top condition, whether they are starter batteries, service batteries or part of a solar power installation. Whether you have a caravan, a boat or a back-up installation for your home, as long as you have a socket at hand, you can charge your batteries.

Take advantage of stops at caravan sites or port calls to charge the batteries of your caravan or boat.

Thanks to their advanced technology, Victron 12V battery chargers ensure fast, safe and efficient charging, extending battery life and avoiding unnecessary discharging.

At FVComponentes.com we have the full range of Victron 12V chargers to meet all needs: from compact models for use in campers and caravans where space is at a premium, to professional chargers with advanced protection and control features.

Features of the Victron 12V battery chargers

  • Full compatibility: suitable for lead-acid batteries, AGM, gel y lithium.
  • Intelligent protection: prevent overloads, short circuits and polarity errors.
  • Maximum energy efficiency: optimise charging and extend battery life.
  • Great versatility: ideal for automotive, marine, agricultural machinery and solar applications.

If you have a backup system for emergencies, a reliable charger is the key to never running out of power. The same goes for service batteries in caravans, campers and boats that don't start for weeks in the off-season: a good charger keeps the battery always ready.

How to choose the right 12V battery charger?

When choosing a battery charger, there are several things to consider:

  • Battery voltage: Check the voltage of the batteries to make sure which charger you need, 12V, 24V or 48V. This is the first thing you need to be clear about before looking for a charger.
  • Battery capacity: this point is very important. As a quick rule of thumb: the charger should have a charging amperage between 10% and 20% of the battery capacity. For example, for a 100Ah battery, a 10A to 20A charger is perfect. Using a smaller charger means much longer charges and the risk of running short and not completing the charge cycles.
  • Battery type: Not all chargers are suitable for all battery types. There are smart chargers that charge lead-acid, gel, AGM and lithium, but other models are designed to charge a specific type of battery. Check the charger's data sheet before purchasing.
  • Where are you going to install it? Do you want it for a camper or boat? Better a compact, rugged and IP protected against dust and water. Stationary use in a workshop or home? Then you can choose a bigger and more powerful one. As always, space is of the essence.

How to use a battery charger?

  1. First read the manual of the charger to understand its technical specifications and how it fits into your installation.
  2. Make sure that the 12V battery charger is compatible with the type and capacity of the battery.
  3. Prepare a well-ventilated, dry work area and disconnect the battery.
  4. Connect the equipment in this order: first the positive (+) cable and then the negative (-) cable.
  5. Make the settings according to the battery type and switch it on, monitoring the process to avoid problems.
  6. When charging is complete, turn off the device and disconnect the cables in reverse order.
  7. Finally, reinstall the battery if it was disconnected and store the 12V battery charger in a safe place.

Where to buy 12V battery chargers?

At FVComponentes.com you will find the perfect 12V battery charger for your needs. As the reference online shop in Spain for Victron Energy, we have a complete catalogue with the following equipment original, official guarantee and always at the best price.

Give your installation the power it needs and enjoy the peace of mind of having your battery always ready.

Frequently asked questions about 12 V battery chargers

Which 12V charger do I need according to the capacity (Ah) of my battery?

As a quick rule of thumb, the charging amperage should be between 10% and 20% of the battery capacity.
Examples: 50Ah → 5-10A - 75Ah → 7,5-15A - 100Ah → 10-20A.
If you prefer maintenance (slow and careful charging), choose the low range; for faster recharging, the high range.

2. Is the same charger suitable for lead-acid, AGM, gel and lithium (LFP)?

Only if the model is compatible and allows you to select the appropriate charging profile. Check the data sheet and set the correct mode.
On lithium/LFP, make sure the system has BMS and respect the manufacturer's recommended voltage/temperature.

3. How long does it take to charge a 12V battery?

Approximate time = (Ah × 1,2) ÷ A of the charger.
Example: 100Ah with a 10A charger → (100 × 1.2) ÷ 10 = ≈12 h.
The factor 1.2 compensates for losses and absorption phase. If loads are connected during charging, the charging time will be longer.

4) Can I leave the charger plugged in for weeks/months?

Yes, as long as it is a smart charger with Bulk/Absorption/Float (maintenance) phases.
Keeps the battery ready without overcharging it.

5) What IP and security protection should I look for?

For indoor, campers or caravans, choose IP22.
For outdoor, marine or humid environments, best IP65/IP67.

Contact with comercial@fvcomponentes.com if you have questions or need advice