Running out of battery power on a boat isn’t just annoying — it can ruin your trip. Here’s how to avoid problems with energy use onboard.

⚠️ First: Air conditioning only works when you’re plugged in

The A/C won’t work on batteries.

No matter what you press — if the boat is not connected to shore power (or doesn’t have a generator), the A/C will not turn on.

Don’t worry — it’s not broken. It’s designed that way.

✅ What can you use on batteries?

You can still use:

• Cabin lights

• Water pumps

• Fridge

• USB chargers

• Some 12 V sockets

• Inverter (limited use)

❌ What you cannot use on batteries:

• Air conditioning

• Hair dryers, kettles, or any large 230 V appliance

• Microwave (if installed)

• Any high-consumption device not supported by inverter

Even if you have a big inverter, it’s meant for light usage — not running A/C.

🔋 Battery tips:

• Close fridge properly – don’t open it every 10 minutes

• Turn off lights and water pump when leaving the boat

• Don’t charge all devices at once

• Some boats show % battery (LiFePO₄), others only voltage

  • 12.4V = ~70–80%

  • 12.0V = ~50%

  • 11.8V = low — don’t go further

☀️ Solar helps… a bit

Some of our boats have solar panels. That helps recharge batteries slowly — but it doesn’t power A/C or cookers. Think of solar as a support, not a power source.

🧭 In Summary:

Use what you need, but understand the system.

Air conditioning = only at the dock.

Everything else = depends on battery level.