Quote:
Originally Posted by astro_nutt
Hi all. Say you use a 12 volt car battery as your power supply. Would it be feasible to charge a second car battery, (stored in a battery box in the boot), when driving around during the daytime taking in the sights, etc?
Just a thought.
Cheers!
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Certainly is feasible. Many 4wd vehicles have dual battery systems, that charge the start battery then switch over to the storage battery, based on voltage need of the respective batteries. Australian company Redarc make a good dual battery system but there are many others. You can even buy themm at Supercheap Auto. You can self install if you know what your doing, and use the correct gauge cables. Putting a Anderson plug at the back is a good idea so you can charge camper or caravan batteries on the go, and it is feasible for your soare battery to supply telescope/mount power at a dark site. Plenty of info on the Net about these systems.