The following statistics were collected over a three day period with good sunshine during the morning and part cloud cover during the afternoon. The main battery is only connected to the Patrol and does not feed any current to the caravan at all. The only item to use power from this battery is the caravan electric brake controller which was left connected during our three day stay.

All power for the caravan is fed from the second battery which is fitted in the Patrol and charged via a portable 80 watt solar panel. We would normally run our caravan fridge on gas to reduce the current useage from our second battery, although we did chnage it over to 12 volt around midday on the Saturday and as seen by the voltage readings soon there after, it was asking too much from the solar panel to keep up.

12.98

9.55am

12.88

12.80

1.46pm

13.50

12.80

5.24pm

12.79

12.64

6.51am

13.22

12.61

10.24am

13.52

12.65

1.53pm

12.26

12.59

3.05pm

12.08

12.59

4.06pm

12.68

12.51

7.33am

12.40

12.54

8.32am

12.67

12.52

9.33am

12.66

12.56

11.35am

12.90

12.67

3.16pm

13.03

The portable 80 watt solar panel is large enough in capacity for us to run whatever lights are required for us to use when free camping and to watch some tv if we wish to do so. As a comparison, we have free camped for a similar period without the solar panel and by the end of the period, we have had no power to run our lights on the third night. With our current set up, this is no longer an issue.