A Travellerspoint blog

Day 114 - Monday 27 August 2012

Jabiru

Another hot day with forecast temperatures in the high 30s. David spent the morning removing the batteries from the caravan to check their condition and state of charge. We have two 140 amp hour deep cycle batteries connected in parallel charged by an 80 watt solar panel and a 25 amp C-Tek smart battery charger. We had been concerned that the charger was not working properly as when it was on the "Normal" charge cycle it used to let the batteries discharge to a point where the lights would dim and the TV would switch off (about 12.25 volts), at which point it would start charging again.

We think that it might get confused when the van is drawing 10 - 15 amps running several 25 watt lights as well as the TV, while the charger is trying to make up the difference, and recharge the battery as well. The manual for the charger was not very helpful with regards to the problem and a solution. We decided that when the battery was fully charged we would switch to the "Supply" mode that delivers about 25 amps at 14 volts regardless of battery condition. David wanted to check the batteries properly to ensure that they were fully charged and working properly.

Battery number one was reading 12.8 volts and all the cells of the battery were reading a consistent specific gravity of 1.285. Barttery number two was reading 12.78 volts and a specific gravity reading of 1.275. While battery number one is 100%, battery number two is about 98%. This is not surprising given that the batteries are in parrallel and charged together. Before we go away again we will get a small battery switch so that we can charge one or the other or both as the need arises. Given that the batteries are nearly 4 years old their condition is excellent - mind you they should last up to 10 years if looked after properly.

After lunch we drove about 60 kms to the Nourlangie Rock Aboriginal Art Site that has been an aboriginal wet season home for about 6,000 years. Archealogical studies have found occassional use by aboriginal people dating back 20,000 years. A 1.5 km walk that took in the main gallery, the major art sites, and the nearby lookout was about the most that we could manage in the 36 degree heat.

Nourlangie Rock

Nourlangie Rock

Rock Art

Rock Art

More rock art

More rock art

Aboriginal hunter (on a bike?) hunting a kangaroo

Aboriginal hunter (on a bike?) hunting a kangaroo

Di at the rock

Di at the rock

Aboriginal dancers

Aboriginal dancers

Nabulwinjbulwinj - an evil spirit that kills females

Nabulwinjbulwinj - an evil spirit that kills females

Namarrgon the Lightning Man

Namarrgon the Lightning Man

A female figure

A female figure

A cave shelter

A cave shelter

Nearby rocky outcrop

Nearby rocky outcrop

Nourlangie Rock from the Lookout

Nourlangie Rock from the Lookout

The distant Arnhem Escarpment from the lookout

The distant Arnhem Escarpment from the lookout

Back at the caravan park we headed straight for the pool and spa located next to the bar and bistro. We had a swim in the pool then relaxed in the spa before enjoying a couple of pre-dinner drinks at the bar. Dinner tonight was flathead and chips with salad back at the caravan.

The Pool at the caravan park

The Pool at the caravan park

The Spa with the lawns behind

The Spa with the lawns behind

Posted by TwoAces 03:47

Email this entryFacebookStumbleUpon

Table of contents

Be the first to comment on this entry.

This blog requires you to be a logged in member of Travellerspoint to place comments.

Login