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Car battery as power source

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#26 Phil Sherman

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Posted 11 December 2012 - 07:36 PM

Another possibility would be to rent a small portable generator and take some fuel with you for it. This will work even if it requires an oil/gas mix which you can prepare before leaving civilization. If you get one that has a 12V output, then you won't care if it doesn't produce a sine wave. If you're in an area with noise restrictions, you could, as a last resort, use the car battery then recharge it using the generator. You can also run the generator and feed its 12V output to the car battery then to your mount. The battery will act as a massive filter and give you clean 12V DC for the mount while the generator actually supplies the current.

Phil

#27 avarakin

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Posted 13 December 2012 - 12:57 AM

Dom,
What kind of equipment you need to power?
Will you be imaging?
How many nights without access to power?
This would help to determine your power requirements.
Is it possible to rent a Prius or other hybrid or EV vehicle? They have huge batteries built in. I read that someone used his Prius for a while after loosing power after Sandy.
Another idea is: Walmart has very cheap batteries:
- Tractor battery, around 25AH for $25
- Marine battery, ~100AH, ~$70


Alex

#28 FineArt

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Posted 14 December 2012 - 06:13 PM

http://www.saferwhol...2V-with-Inte...

This is lighter than lugging a second car battery.

#29 starrancher

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Posted 14 December 2012 - 06:44 PM

At 500 bucks it better be .

#30 Dom543

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Posted 18 December 2012 - 10:22 PM

Dear All,

Thank you for all the input and ideas. The past week was very busy at work so I didn't have a chance to dream about remote places or check the forum. The next couple of weeks will be more quiet and I can explore the ideas that you gave me on this thread.

I am leaning towards some kind of rechargable duracell pack or jumpstarter pack bought after arrival. Or an inexpensive lead-acid battery.

I will have to power a modified Super Polaris mount with CG-ASGT motors and electronics and will have a Mallincam and a still imaging camera with me. Only one of the cameras will be used at any one time. I also have a 7" LCD monitor and a recording device. No computer. As mentioned earlier, a 17 Ah powerpack lasts through the night but gets pretty much depleted. So that's how much energy I need for each of the 7 nights.

I will post my experiences as a conclusion of this thread after I return. No posting means that my solution was not adequate, I depleted my car battery and am stuck watching stars until the end of the universe...

Not a bad prospect at all!

Cheers!
--Dom

#31 M13 Observer

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Posted 19 December 2012 - 12:04 AM

http://www.saferwhol...2V-with-Inte...

This is lighter than lugging a second car battery.


Yeah, great! If the wind is howling I'm sure to be out there observing! Doh!

#32 starrancher

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Posted 19 December 2012 - 01:07 AM

http://www.saferwhol...2V-with-Inte...

This is lighter than lugging a second car battery.


Yeah, great! If the wind is howling I'm sure to be out there observing! Doh!


:lol: :roflmao: :lol: :rofl2: :rofl5: :funny: :brick:

#33 Danzup77

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Posted 19 December 2012 - 01:51 AM

RTLR12 holy cow....thats some usage! Glad to hear it for sure!!

#34 dag55

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Posted 19 December 2012 - 10:57 AM

I like the idea of a manual transmision and parked pointed down hill. Also a 12v solar panel charger for marine use works great, they are small enough and you can hook it up to your rental car in the daytime to recharge your car. Also fill your gas tank just before you get to your location and for added insurance take a full 5gal. gas jug along for those times you want to warm up or recharge at night. Also I second the idea of turning your mount off on starting your car. Clear skies and enjoy your trip.
Dane

#35 john smith

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Posted 21 December 2012 - 08:35 PM

this is what you might need
http://koolatrononli...tery-saver.html
If the link doesn't work, search koolatron web site. I don't know what you are powering but I use one off of my car battery running due heaters. I used the device for about five years with the same battery with no problems. The unit will turn on with engine running voltage,after it turns on, turn off the engine and run your devices.

#36 john smith

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Posted 21 December 2012 - 08:43 PM

Also one thing to keep in mind is on many cars the power socket is not powered up when the key is off.






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