How much battery for star trails?

bertwert · 02-18-2016, 08:40 PM

How much time do you think I could last on full AA alkaline batteries for taking a straight on star trail in cold weather (-5°C)?

Do you think I could 15 minutes out of it?

stevebrot · 02-18-2016, 09:03 PM

This PDF from Energizer might be helpful:

http://data.energizer.com/PDFs/temperat.pdf

It appears that you can expect service life at -5C of about 60% of what you might get at room temperature.

Lithium AA cells or a few extra D-Li109 might be the better choices than alkaline cells.

Steve

AussieTrev · 02-19-2016, 02:11 AM

I got a power adapter and an inverter, hooked up to a 12 volt battery, should go all night. I'm just to lazy to get out there and use it.

02-18-2016, 08:40 PM	#1
bertwert Veteran Member Join Date: Jun 2015 Location: Golden, BC Posts: 15,172	How much battery for star trails? How much time do you think I could last on full AA alkaline batteries for taking a straight on star trail in cold weather (-5°C)? Do you think I could 15 minutes out of it?

02-18-2016, 09:03 PM	#2
stevebrot Otis Memorial Pentaxian Join Date: Mar 2007 Location: Vancouver (USA) Photos: Gallery \| Albums Posts: 42,007	This PDF from Energizer might be helpful: http://data.energizer.com/PDFs/temperat.pdf It appears that you can expect service life at -5C of about 60% of what you might get at room temperature. Lithium AA cells or a few extra D-Li109 might be the better choices than alkaline cells. Steve Last edited by stevebrot; 02-18-2016 at 09:11 PM.

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02-19-2016, 02:11 AM	#3
AussieTrev Veteran Member Join Date: Jul 2010 Location: Queensland Photos: Gallery \| Albums Posts: 3,590	I got a power adapter and an inverter, hooked up to a 12 volt battery, should go all night. I'm just to lazy to get out there and use it.