expoweb/handbook/lights.html

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<h2 id="tophead">CUCC Expedition Handbook</h2>
<h1>Charging your light (and phone)</h1>
<h2>Top camp</h2>
<p>Top camp has no mains 230V electricity.
<p>Top camp does have solar-powered car batteries, so you need to bring a <b>12V car-type charger</b> for your caving light and phones.
<p>The solar/battery system provides various connectors:.</p>
<ul>
<li>Unit 1:</li>
<ul>
<li>2off cigarette 12V, 10A max each</li>
<li>1off cigarette 12V, 20A max</li>
<li>3off 4mm Jack's 12V, 10A max each</li>
<li>2off USB-A (5V)</li>
</ul>
<li>Unit2:</li>
<ul>
<li>6 cigarette 12V, 10A max each</li>
<li>2off USB-A 5V, 1A and 2.1A</li>
</ul>
</ul>
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<p>At top camp there is one expo-supplied 'cigarette' plug providing a pair of USB sockets.
Since 2 USB sockets is not enough for everyone's phones and lights, you need to <b>bring your own</b> 12V-to-USB plug-in.
(Providing proper permanently-wired USB charging is on our to-do list.)
<p>USB to multiple-USB (e.g. 1:4) hubs don't work for charging lights or drill batteries.
Even for charging phones they are very, very slow.
So if you are using USB to charge your caving light <b>you must</b> bring a light charger which <b>plugs directly into the 12V sockets.</b>.
<h2>Base camp</h2>
<p>Base camp has mains power and UK-style 230V mains sockets as well as a few EU-style mains sockets.
So your usual UK chargers will work and you don't need to bring any converter plugs.
<p>We have one expo USB charging unit (labelled with purple gear-tape: the expo colour):
it has 6 powered USB-A sockets and we have 2 microUSB cables and 2 USB-C cables.
People also bring their own mains-to-USB chargers but there may not be enough.
So to be sure, <b>bring your own</b> (and label it with your gear tape).
<h2>USB cables</h2>
You need to bring your own USB charger cable for your phone (typically USB-A to USB-C or micro-USB).
Yes, there are a lot of them about, but they are nearly all personal gear.
So <b>bring your own</b> (and a spare) and label it with your gear-tape colour.
<h2>Phone recharging battery</h2>
If you are doing a lot of surface prospecting, and especially if you are using your phone for GPS location, you will want to bring a spare battery which re-charges your phone, e.g.
<a href="https://www.amazon.com/Best-Sellers-Cell-Phones-Accessories-Portable-Phone-Power-Banks/zgbs/wireless/7073960011">one of these</a>.
<h2>Recharging drill batteries</h2>
This is much more complicated and has a <a href="charging.html">webpage dedicated to the several different chargers</a> that should be used.
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