What is a 12V inverter with charger?

A 12V inverter with charger integrates two functions: it converts energy from 12V batteries to 230 V AC and, when grid or generator is available, recharges the bank with a controlled internal charger (multi-stage). It is the compact solution for off-grid homes, campers, and boats that require simple backup.

Main advantages

• All-in-one: inverter + AC charger in a single unit.
• Automatic management: source priority and seamless switching (depending on model).
• Proper charging: specific curves for AGM, GEL, OPzS, or 12V lithium (depending on compatibility).
• Simplified installation and less cabling than with separate devices.

When to choose 12V and when to move up to 24/48V

• 12V: compact systems, moderate currents, and short DC distances.
• 24/48V: if continuous power increases or DC cabling is long, consider 24V or 48V.

Typical applications

• Caravans/campers: autonomy with the option to recharge at campsites or with a generator.
• Marine: onboard services with backup at port/generator.
• Small homes or cabins in off-grid settings.

Key selection criteria

• Inverter power: size according to simultaneous consumption and peaks.
• AC→DC charging current: sufficient for the size of the bank (Ah) and desired recharge time.
• Battery profiles: compatibility with AGM/GEL/OPzS and lithium (voltages and communications if applicable).
• Functions: source priority, fast switching, generator relay, monitoring (RS485/CAN/Wi-Fi).
• Protections: low/high DC voltage, overload, temperature, short circuit.

General specifications

And if I want to connect panels directly?

If you want to integrate photovoltaic regulation into the unit itself, check the inverters with charger + MPPT, which allow you to connect PV panels to the internal regulator, reducing equipment and simplifying installation.

A 12V inverter with charger is the most compact way to achieve stable AC and controlled bank recharging. For higher power or more efficient cabling, consider the 24V and 48V versions.