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On 21/02/12 05:54, Andrew Rich wrote:
<blockquote cite="mid:35AC3A14949C47B58E9DB945E7EBBED3@MacBook"
type="cite"><br>
Taking a tracker on a boat and a plane.
<br>
<br>
Any good suggestions of battery technology ?
<br>
<br>
Are radio control battery packs a good option ?
<br>
<br>
Little GELL CELL ?
<br>
</blockquote>
<br>
Andrew, I've been using SLA, NiMH packs and LiPo packs and I found
the LiPos to be the best. The energy to weight ratio is the best
choice of the three. SLA are too big and heavy.<br>
I bought generic LiPos from DFRobot like <a
href="http://www.dfrobot.com/index.php?route=product/product&path=70&product_id=489">this
one</a> and from Sparkfun like <a
href="http://www.sparkfun.com/products/10471">this one</a>. The
7.4v work fine on OpenTracker. You'll need to check the specs of the
GPS if it's not operating on the OT 5v regulator.<br>
I bought a generic automatic LiPo charger from a local RC shop which
can do 1 to 4 cells and operates from a 12v supply.<br>
<pre class="moz-signature" cols="72">--
Rob, VK6UFO, VK6RN</pre>
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