To ensure that all 12V electronic devices work without external power, the camping battery voltage should never fall below 12V (50%).
The lights in the Camper Castle (Knaus Sky Wave) only work when the camper battery is charged or when an external power supply is connected.
You can turn on the lights on the on-board computer above the entrance door:
There are numerous power outlets and USB ports throughout the vehicle:
- 230V sockets you'll find on the kitchen unit and above the counter and above the bed.
- USB ports and 12V sockets are in the cockpit (USB Type-C and B), above the dinette, above the bed and on the roof bed.
You can switch on and dim the reading lamps and lights in the upper bed directly at the lamp.
Awning Light
Some models have an outdoor light:
- The outdoor light can be turned on using the small toggle switch to the left of the control unit. First, set it to standby:
- Then use the toggle switch to turn it on: I = light on, II = motion sensor active:
Please note the following:
- When stationary, do not charge any device in the driver's cab via USB. The starter battery will discharge and the engine may not start!
- 230V sockets: only work with an external power connection
- USB ports and 12V sockets: work without an external power connection, with a charged camping battery (always keep it above 50% or 12V).
- With a full battery, you can be self-sufficient for 1-2 days without a power connection, depending on usage. Then you need to drive for a while to recharge the battery or connect your camper to an external power source.
- 🚗 Slow driving & short distances → hardly any battery charge
- 🛣️ Long drives on motorways → better charge, but takes several hours
- 🔋 The starter battery is charged first, then the camping battery.
- ⚠️ Driving alone is often not enough to fully charge the camping battery.
- 🔌 Recommendation: charge externally every 48 hours to avoid energy shortages (especially at night 💤).
- Don't forget to unplug the power cable before driving off! For some models, you need to press the blue lever next to the plug downwards.
Troubleshooting
If the power or light isn't working, you can test various things. We've compiled everything for you in the "Troubleshooting" section of this article: 🔌 Charging the camping battery / Electricity - Camper Castle (Knaus Sky Wave)