<html><head><style type='text/css'>p { margin: 0; }</style></head><body><div style='font-family: Times New Roman; font-size: 12pt; color: #000000'>Good reason to switch to Lithium Iron Phosphate cells.<br>dale<br><br><hr id="zwchr">
One thing to remember about LiPo packs, is that if you start them on
fire, they are self oxidizing as they burn, and you really can't
"put them out" in any easy way. If you will be in a position to
have issues with charging or otherwise using a lose pack, you might
think about having a "ceramic container" of some sort with you to
let it burn in, if you have a problem.<br>
<br>
I know, it's an extreme case, but if you are "crafting" something
with lipo, it's very important to think about safety in use and
charging so that the pack stays in a "safe" condition, and leads do
not short.<br>
<br>
Gregg Wonderly<br>
W5GGW<br>
<br>
On 2/20/2012 4:19 PM, Rob wrote:
<blockquote cite="mid:4F42C6EC.5090102@multiline.com.au">
On 21/02/12 05:54, Andrew Rich wrote:
<blockquote cite="mid:35AC3A14949C47B58E9DB945E7EBBED3@MacBook"><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" target="_blank">this
one</a> and from Sparkfun like <a href="http://www.sparkfun.com/products/10471" target="_blank">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">--
Rob, VK6UFO, VK6RN</pre>
<br>
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<br>
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</blockquote>
<br>
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