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Electric Stunt => Gettin all AMP'ed up! => Topic started by: Jim Moffatt on January 01, 2010, 07:39:47 PM

Title: A Battery Warmer for Cold Weather Flying
Post by: Jim Moffatt on January 01, 2010, 07:39:47 PM

In a previous post I talked about this box but pics are worth 1000 words. So here are the pix

First the box parts

(http://i269.photobucket.com/albums/jj55/jpmoffatt/100_0234.jpg)

Then the box with 1/2A sized lipos in it

(http://i269.photobucket.com/albums/jj55/jpmoffatt/100_0235.jpg)

The ACE hot/cold pack is heated in a microwave oven at full power for about 1 min. It comes out at about 120F. It keeps the batterys above room temperature for over an hour. I have found that lipos perform best when they are at about 100 to120F just before the flight so I actually use this about 9 months of the year here in New Hampshire.  The box could be made larger for larger batteries.

Title: Re: A Battery Warmer for Cold Weather Flying
Post by: Dennis Adamisin on January 02, 2010, 10:29:11 AM

Simple/elegant solutions are the best - what a GREAT idea Jim!    CLP**  BW@

Title: Re: A Battery Warmer for Cold Weather Flying
Post by: Dennis Toth on January 02, 2010, 05:29:15 PM

Jim,

Nice job. I have also used packaged hand warmers slipped in my ammo box that I use to store my packs.

Best,                  DennisT